These old Videos help soooo much, i can read a bit but my brain always gets mangled after a while, probably since English ain't my first language but videos with continuous explanation is a god send, thx Jafro from 10 years ago !
I think most of the diy/automotive/machinist side of YT could take a lesson from your fluid and organized narration. It proves that there is indeed an elegant intersection between being concise, engaging, and vastly informative. -- and you understand the value of text descriptions too!
Probably one of the most overlooked steps in building motors, especially overhead cam engines. Thanks for making people more aware of how much variation can be present after machining, before or after reassembly. Well worth the wait for the video Jafromobile. Thanks for sharing with us. It is greatly appreciated.
A friend pointed me to your channel, and i'm now coming up for air after immersing myself in untold hours of your videos. I'll probably never touch a 4g63, or any DSM motor, but i thank you for the painstaking detail you put into these videos and facilitating the satisfaction of my inner monologue's "i understand what he just did!" I don't know where i'll fit everything i learned in this video, but i'll make room.
I actually think this particular video was the best work I ever did here. I wish it had half the traction of my port and polish video. The would be filled with DOHC experts! :D
This video I think is the best on the net that I found on degreeing cams. Thanks for the information. For the folks that are still confused, sit down, take notes on a piece of paper and put it into your own terms. Rewind the video multiple times until your brain matches what's on your note pad. Luckily for some, he was using a digital gauge and not an analog gauge. :)
Can't say if I am repeating myself but about 5 years back when I was rebuilding the engine of my CRX (D16ZC) you have been the one who got my attention. Even today you r giving us nice insights, tips and good jokes. You brought me into porting the cylinderhead and checking the injectors. And with this video, later on, how to set the cams correctly after the head been surfaced more than 2 times. Heh. Thanks for having u here.
Hey there just stopping by to say Thank you for these amazing videos! Your videos have helped me to fully grasp what it takes to build a motor right and Im using ever piece of knowledge that you share into my 2.4 build! I cannot thank you enough! Your patience and perseverance is outstanding!
great video, the foreign material stuck to your magnet at 1.35 had me freaking out but i knew you would clean everything up nice like you always do. iv been watching your videos for a good 5 years now and even tho my dsm is gone i credit all my mechanic talent to you and your great attention to detail have stuck with me and every car i ever play with, i rebuilt the motor in my 95 gst way back when and knew exactly how everything worked before i ever tore into it, your videos where the best thing i could have found and i enjoy every last one still to this day. I drive a 07 mazdaspeed 3 now and still miss my dsm maybe one day i will have another. Great job as always Jafro.
I prefer the piston stop method myself, but you know your stuff dude. A VERY VERY informative video. You should have your own show, you had my attention the entire time. And I get bored pretty easy man. One of the best car vids Ive ever watched. Thanks man.
Stumbled on these videos and I'm pretty impressed, the way you walk through these is fantastic. There's no guesswork for the viewer on how or why you did any one step, and that's a big part of what separates great teachers and OK teachers. Keep up the great work, I'll be watching some more of these when I find the time
I had to sleep 12 hours for my brain to recover after this video! I can't describe how awesome that feeling is, thanks for sharing all that knowledge so well!
GREAT JOB on speeding things up while explaining your actions! Viewer can easily understand what's going on without taking unnecessary time for the things that can be better shown than explained. As they say, a picture is worth a thousand words. Thanks for the great video!
I'm that statistic! Hiya! o/ I love watching your videos, and they recently helped a friend of mine. He suddenly lost all power on the road with his Evo IX, assumed the engine was dead, and decided to replace it. I managed to talk him into pulling it and letting me look it over. Thanks to your video's, I diagnosed several problems and rebuilt it for about~$700 bucks ... Saved him 2.5 grand easy, and it runs like a f**king champ! ^_^
erikmoua Thanks man! It doesn't come easy. I'm a tough viewer to satisfy and it typically gets re-worked for weeks before I'm satisfied with it. I appreciate hearing it!
jafromobile, I'm in the process of building my 96 GSX with 1g head & your videos are the best informative videos I've seen that deal with the 4G63. keep up the Great work.
There's a finite lifespan before you can't even find stuff in the junkyard anymore. The Hyunda stuff from '90-'95 for instance... Mitsubishi won't be far behind. If you want one, get one before they're all gone. Responsible people who watch my channel deserve to own them.
You sir, are the Yoda of DSMdom. Your videos are second to none. You inspire me to grow and broaden my knowledge base for something I have a passion for. What you share is invaluable to me personally and for that I would like to say Thank You! I enjoy watching your videos, once, twice and even a third time in hopes of learning a little more each time.
I'm doing my best to try to squeak it out tonight. I'm at the mercy of the export which has been taking about a half a day for a half-hour video. The last export starts at about 1 PM today. So tonight or tomorrow morning, one of the two.
Have learned more about my Talon from you, than everyone else put together. Have had it 17 years now, in the process of building the engine for endurance road racing. Hope all is well and many thanks for these videos and a uor hard work.
just watched all the videos concerning your hyundai rebuild. These will be reference to me as far as the steps taken, not the actual numbers as im doing a nissan ka24de-t. still tons of great info and very well made videos. i'll be watching for more to come! Thanks for taking the time to make this available for us to watch Dan
Just saying. You taught me more about engine building than any other person I have ever come across, in person or on the internet. Your videos gave me the confidence to go out and build my own engine (finally... Had the damn thing for years.), and mixing what I already knew about engines and what you show in your videos... I'm proud to say that my little CA18 runs mint, has perfect compression and does what it's suppose to do! So for that, I have to say thank you. Now I just can't wait to build my next ca18 with much larger cam shafts! Keep the videos coming. We can all learn from them! : )
You sir are my hero. I know it's a long way off, but I'm itchin to hear this thing run. It's going to be EPIC considering all the love and attention you are giving it.
Once again youve an incredible contribution to the gearhead community. Thank you!! And here is a tip from the blacksmith shop if you ever have to cut on sockets again or anything that may be some kind of hardened tool steel. You can get the metal as soft as they it will get by heating it up to dull red or wherever it looses magnetism and then let it cool as slow as possible which usually means dunking them it vermiculite. (Its like kitty litter and found at pet/garden stores)
Thanks man! The good news is that I had to split this video in half and only upload half of it. I'm re-working the audio track and it will be here very soon. Hopefully before the end of the week!
+kingmike40 Lol! Thank you Mike! I've gotta be honest... to be commenting in this video... you went straight for the hardest and most complicated topic! I can tell you still like a challenge. :)
Use a bicycle wheel spoke to extend a dial gauge! Some of them have the correct thread to screw into the dial gauge and they're straight, cheap and abundant. Also, the correct thread for most of the dial gauges is M2.5 with 0.45mm pitch. On another point, I like to measure my TDC using 1mm BTDC and 1mm ATDC of piston lift, as the top dead center is - as the name suggests - a dead center. Depending on the stroke-rod ratio, the piston might seem to stay completely still at TDC for more than 3-4 degrees of crank. I mark the pulley for 1mm BTDC and ATDC and the real TDC is exactly between those two.
You did an excellent job, very impressive! I'm not a Hyundai fan by ANY means, but you really did a bang up job and this stuff applies to any engine. Nice job!
top video jafro. I will definately be making my own solid lifters for this, I didn't realize that it was that simple, here I was prepared to buy some. Be looking out for cylinder head 206
You should lookup 4g63 dotorg and read the cam degreeing section. There's a fantastic write-up with yet another method of lifter setups available. It's nice that these lifters are so prevalent in so many different junkyard cars. Every 4-cylinder DOHC 1989-1999 Mitsubishi uses them. Of course there's nothing wrong with the ones CRCO makes if you have the coin. Heck I might even buy a pair just to have them in the toolbox.
***** I am not that far into the build yet my cylinder head is ported and polished and I have all the parts for the head, gaskets and sensors for the engine but am yet to buy a rotating assembly and machine work. This sort of stuff is beyond my experience right now so ill do what I did every other time, watch videos and read manuals then dive in and I will be familiar. I will read this article on 4g63 dotorg thanks. Oh I finally got mitsubishi ASA on my computer so part numbers are a breeze. Keep it up jafro.
Caboose is an amazing cat. You never know what you're going to get, and I got lucky with that big fat-ass crazy Manx. He does most of the dog tricks. He keeps a line of sight on me no matter where I am in my house or in the yard. He's like a Jack Russel terrier.
Yeah, I have a couple of cats and I can take one of them outside with me and he will come when I call... They are a lot more social than people give them credit for.
when going through my subscriptions i noticed you (jafro) had a number indicative that some action has taken place on your account, as the page was loading i was chanting fast "new vid new vid new vid" followed by a "yay new vid!" needless to say im excited,
Nice Vid Jafro! Iam glad I didn't add cams in my build as I was unaware of the extra work that went with the cam gears. Looking forward to the next one !
I wonder what percentage of adjustable cam gears are installed because they look cool and never adjusted. If there is a better source of this quality of automotive know-how, I'm not aware of it. Thanks for all the time you put in, and of course, your relentless pursuit of audio and video quality. I know it does not come easy.
I did build a Honda once. It was a great car. I actually do miss it after 8 years of $3.50 gas prices, yes I do... I couldn't bond with the Honda performance factor. No offense to Honda owners anywhere... I just wasn't willing to do all the block sleeving and girdle work to stiffen up an aluminum block with a floating water jacket. It cost so much more to achieve the same result. I made a video about it called "Jafro's Honda Civic Confession".
I remember my cousin putting dohc heads on a 400. grinding the block, drilling and tapping holes, running a timing belt, plugging up countless of the previous timing holes, and shortly there after ruining 1800 dollars worth of top and bottom end. I also remember the day he got it right.... 9800 rpms and 630 ponies at the flywheel. His garage walls were floor to ceiling in math. Now it sits in a Catalina in Florida, Waiting to become scrap.
If I may, an old school hot roddding tip for cam tuning. The motor will respond the best when you achieve the highest cranking pressure by changing valve timing events. A lot of trial and error, but I always had more time than money.
There is an easier way to attach a degree wheel: search google image for a degree wheel, print it out, and glue it on to the circumference of the harmonic damper. It takes a bit to ensure it's round and true to center, but mostly free is a great price
God I remember doing this to my cortina mk2 GT, I fitted a kentcam bcf3, it was a little more easier in that engine (kent crossflow) because it was a single camshaft but it was a ohv so the cam was in the block. But I had the head ported and gas flowed,, fitted 1300gt pistons in a 1600 gt block (higher compression), I also fitted vandervell bigs and mains shells and knocked to the oil pressure to 60psi plus fitted a full janspeed exhaust system inc manifold. I left it with the standard webber carb DGAV32. i did take it down the motorway and 0-60 was around 7secs and the speedo was off the clock around 120mph. This was all done around 40 years ago when i was in my teens. I beat so many cars away from the lights even the souped-up ones. The fact was I had done all the work properly and did not just bolt on after market accessories; Those was the days!!!!
Love your vids, something that might help with the tapping would be to heat (with Oxy. Acty. kit) the centre hole of the socket to a Cherry red and let it cool in air, this will relax the grain structure of the hardened metal and save your tap.
I learned so much from this video. Thank you! But the most important thing I learned was that "installing camshafts is a lot like a dog pooing on your rug."
YEA!! Video!! Great work as usual. I am not sure what is more impressive, that you take the time to voice over and edit down that many hours of footage or that you actually trained a cat. The fact that you somehow did both... so how long have you been single?
Hahah... 42 years and 2 weeks. Caboose was an easy one, and Manxes usually are because of the mutant gene. But I've got a female manx that's dumber than a bag of hammers, so that doesn't seem to help them every time. She hides all day, and that's why you haven't seen her. She's the only one I've ever had that I've never been able to train. I learned training a cat is more about training ME to figure out what they want rather than me actually teaching them anything. If the cat is easy to read, it's easy. I just mess with them constantly before giving them what they want and it makes them forget they're cats. Every time they cooperate, I give them what they want. They already know how to do these tricks instinctively if you keep them happy, and usually don't realize they're participating in a game once they trust you.
Ugh thus is one more thing i need to do to mirage. I dought ill find specs for a rpw cam for a 4g15. Thanks fir explaning the purpose of degreeing cams.
Perfectly done man, alway use Manufacture specs. But god damn is it hard to degree in than a ohv v8. Ps your probably the only person who uses them to on RUclips
Few people know how to appreciate this video. There was nothing like this anywhere when I was originally trying to figure this stuff out. There were a couple of forum posts, but they contained vagaries. Either that or there was a language gap. I had 3 smart friends with limited time, or kids, or both... and every tool I could find to measure lift was made for OHV v8's. lol. The forum posts had how-to's for making tools, but I did mine a little differently here. Thanks Omar!
Most people like lambos, stuff blowing up, video games, vlogs spending money on mystery boxes, etc. This is educational and that is why I subbed. I really enjoy this form of content
Engine building and cat, I love them both.You show what the paper said and what is real life do, So can you tell how to correct and choose piston rings gap please?
Dogs poop on carpets... thats all i got out of this. Nah, great video, been watching from 202 up to this one now, strangely addicting to watch how you do it as you tell why it works and how it works. Thank you for making this great video series!
One question. You didn't tighend the head. Because the cams are now "higher" above the crank than in the future, will this effect the cam timing? One tip that I found on RUclips finding TDC more accurate. Because the moving near tdc is so small, you can go the same high/reading on both sides, than in the middle of these degrees is the TDC. And another Tip. You can find pdf's of degreeing wheels on the internet. I have printed them out and glue them on plywood or acrylic. Of course you have the same mounting problems.
i own a 95 talon tsi fwd auto and i absolutely loveeeee your videos ive watched them all atleast 50 times and i would really like it if you did a review of your tool box / which tools youd recommend absolutely love watching your videos especially for us 4g63t guys
I'm officially intimidated now. I replaced the head, springs and valve stems and now it needs to be timed.... I have a 1.6l dohc engine from my 02 accent and I know not all engines are created equal but, at least this video gave me an insight on what I'm up against.
Seriously hungry for more, i feel ive watched every single video bar a few car shows and track clips. Dont make us wait another month for 206 haha I rebuilt my nissan patrol l28 with the service manual and your guidance. I was also lucky enough to aquire a mitsa magna tf and was pleasantly surprised to find I have the same engine youve been show casing. Its a 4g64 16v, I havent started tearing into it but I feel pretty confident now. It cant be too far off from the 63, right? :p thanks for putting so much time, effort and money into these videos
Oh wow! You got the Galant Wagon. It's mostly the same... Just a different timing belt and a different bore and stroke... but yes! You will find that all of this stuff applies. You should still follow the Magna's service manual for spec, or the overhaul section of the Mitsubishi shop manual for the 2.4L if you can't find the Magna manual.
***** yea brother in aussie we call em magnas.. I wish I had a good website or forum to gather knowledge and learn which mitsas I can use as doner cars. I like the 4g64, for a 4 cylinder it goes like stink I just wanna get more haha it uses slight oil, but not enough to produce smoke. also removing the oil cap you can feel massive blowby which is taking its toll on the spark well seals.. good times!!
One thing they offer that you can't get with a pushrod motor is adjustable Lobe Separation Angles. You can still adjust the LSA on a pushrod motor, but the amount of work involved is VERY different. You know what I'm sayin'... ;P Yes, I know you do. :) You have to know a LOT more about valve timing in order to get a pushrod motor right.
Oh yeah, I know. They are easy to install. It's because the intake and exhaust profiles are all on the same stick. With DOHC, you get infinite control of how far apart you want your cam centerline specs, and you can do it with both cams installed. The distance between centerlines is a value called Lobe Separation Angle. Pushrod motors have LSA built into the bump stick, so it's a static value that you can't change without replacing the cam. In other words, on a pushrod motor, you have to know and have calculated the perfect cam grind in order to get the most out of your build prior to purchasing your camshaft because the overlap and lobe separation angle values are built in to the cam and can not be changed. They're easier to install, but they're harder to get perfect because it requires a greater understanding of how valve timing events work. On a DOHC, you can turn one cam independently of the other and dial in the overlap and lobe separation angles just where you need them for maximum performance. So you can purchase a camshaft that's close to what you want, and make it perfect during install. Overlap will determine how lumpy the idle is, and LSA will affect how it behaves across the whole power band. You bring up extremely valid points, but we'll expand more on valve timing in the next video. DOHC is more troublesome to install, but offers far more tuning capability. I hope this makes sense. ;)
Hey Jafro, I have a project I'm preparing to get started with. It's a 1.4 liter OHC Opel engine, and it's currently installed on my little bite sized truck. This engine comes stock with a 12.3 compression ratio, so I don't plan on changing stroke or bore. I also want to keep it naturally aspirated, my main goal is to improve efficiency and/or power-to-weight ratio without changing the capacity. I'm wondering if you have any advice on how a valve/porting job on a 2 valve per cylinder OHC differs, if at all, from a 4 valve per cylinder DOHC.
7 years later and ur still helping people degree motors thank u sir
I've watched this one a number of times haha maybe I'm a little slower
These old Videos help soooo much, i can read a bit but my brain always gets mangled after a while, probably since English ain't my first language but videos with continuous explanation is a god send, thx Jafro from 10 years ago !
I think most of the diy/automotive/machinist side of YT could take a lesson from your fluid and organized narration. It proves that there is indeed an elegant intersection between being concise, engaging, and vastly informative.
-- and you understand the value of text descriptions too!
this is probably one of the coolest things to watch on youtube.
Probably one of the most overlooked steps in building motors, especially overhead cam engines.
Thanks for making people more aware of how much variation can be present after machining, before or after reassembly.
Well worth the wait for the video Jafromobile. Thanks for sharing with us. It is greatly appreciated.
6 + years later and this video is still relevant I appreciate you and thank you
A friend pointed me to your channel, and i'm now coming up for air after immersing myself in untold hours of your videos. I'll probably never touch a 4g63, or any DSM motor, but i thank you for the painstaking detail you put into these videos and facilitating the satisfaction of my inner monologue's "i understand what he just did!" I don't know where i'll fit everything i learned in this video, but i'll make room.
Almost 300k hits man. This video has definitely been viewed world wide for improving 4g63 skills and overall education of the engine .
I actually think this particular video was the best work I ever did here. I wish it had half the traction of my port and polish video. The would be filled with DOHC experts! :D
This video I think is the best on the net that I found on degreeing cams. Thanks for the information. For the folks that are still confused, sit down, take notes on a piece of paper and put it into your own terms. Rewind the video multiple times until your brain matches what's on your note pad. Luckily for some, he was using a digital gauge and not an analog gauge. :)
cruzancoconut You pegged the only reason I use a digital gauge. ;) Thanks!
Can't say if I am repeating myself but about 5 years back when I was rebuilding the engine of my CRX (D16ZC) you have been the one who got my attention. Even today you r giving us nice insights, tips and good jokes. You brought me into porting the cylinderhead and checking the injectors. And with this video, later on, how to set the cams correctly after the head been surfaced more than 2 times. Heh. Thanks for having u here.
Hey there just stopping by to say Thank you for these amazing videos! Your videos have helped me to fully grasp what it takes to build a motor right and Im using ever piece of knowledge that you share into my 2.4 build! I cannot thank you enough! Your patience and perseverance is outstanding!
Thanks Jafro. I always refer to you when I need a technical explanation. Degreed in the 264/272 I/E Crower cam combo I've got tonight.
great video, the foreign material stuck to your magnet at 1.35 had me freaking out but i knew you would clean everything up nice like you always do. iv been watching your videos for a good 5 years now and even tho my dsm is gone i credit all my mechanic talent to you and your great attention to detail have stuck with me and every car i ever play with, i rebuilt the motor in my 95 gst way back when and knew exactly how everything worked before i ever tore into it, your videos where the best thing i could have found and i enjoy every last one still to this day. I drive a 07 mazdaspeed 3 now and still miss my dsm maybe one day i will have another. Great job as always Jafro.
I know it's an old video but them you are a Master. The way you speak explaining everything it's amazing. I subscribed . Thanks for this class.
I prefer the piston stop method myself, but you know your stuff dude. A VERY VERY informative video. You should have your own show, you had my attention the entire time. And I get bored pretty easy man. One of the best car vids Ive ever watched. Thanks man.
Stumbled on these videos and I'm pretty impressed, the way you walk through these is fantastic. There's no guesswork for the viewer on how or why you did any one step, and that's a big part of what separates great teachers and OK teachers. Keep up the great work, I'll be watching some more of these when I find the time
I had to sleep 12 hours for my brain to recover after this video! I can't describe how awesome that feeling is, thanks for sharing all that knowledge so well!
GREAT JOB on speeding things up while explaining your actions! Viewer can easily understand what's going on without taking unnecessary time for the things that can be better shown than explained. As they say, a picture is worth a thousand words. Thanks for the great video!
You know that scene in the matrix where Neo "jacks in" to the chair and learns all of the martial arts?
You sir are an automotron; one who turns jargon into jargon that is understandable. Tip of the hat to you, very much indeed.
I'm that statistic! Hiya! o/
I love watching your videos, and they recently helped a friend of mine. He suddenly lost all power on the road with his Evo IX, assumed the engine was dead, and decided to replace it. I managed to talk him into pulling it and letting me look it over. Thanks to your video's, I diagnosed several problems and rebuilt it for about~$700 bucks ... Saved him 2.5 grand easy, and it runs like a f**king champ! ^_^
dude your commentary is the best. hands down.
erikmoua Thanks man! It doesn't come easy. I'm a tough viewer to satisfy and it typically gets re-worked for weeks before I'm satisfied with it. I appreciate hearing it!
jafromobile, I'm in the process of building my 96 GSX with 1g head & your videos are the best informative videos I've seen that deal with the 4G63. keep up the Great work.
Just found your channel. Watched all of the 4g63 videos from start to finish. Excellent stuff.
Always enjoy your videos and check weekly for a new one. I've learned a lot from you and makes me miss my Plymouth laser
There's a finite lifespan before you can't even find stuff in the junkyard anymore. The Hyunda stuff from '90-'95 for instance... Mitsubishi won't be far behind. If you want one, get one before they're all gone. Responsible people who watch my channel deserve to own them.
Man this channel is instant subscribe for everyone who seek knowledge
You sir, are the Yoda of DSMdom. Your videos are second to none. You inspire me to grow and broaden my knowledge base for something I have a passion for. What you share is invaluable to me personally and for that I would like to say Thank You! I enjoy watching your videos, once, twice and even a third time in hopes of learning a little more each time.
after a few vids in this series you get the sub! love the educational takes !!
This is fcking awesome. We're very lucky to have your wisdom and experience distilled into such easy to digest videos. Thanks.
The next video's even pre-chewed! ;)
***** any word on when the new video will be?
I'm doing my best to try to squeak it out tonight. I'm at the mercy of the export which has been taking about a half a day for a half-hour video. The last export starts at about 1 PM today. So tonight or tomorrow morning, one of the two.
Have learned more about my Talon from you, than everyone else put together. Have had it 17 years now, in the process of building the engine for endurance road racing. Hope all is well and many thanks for these videos and a uor hard work.
just watched all the videos concerning your hyundai rebuild. These will be reference to me as far as the steps taken, not the actual numbers as im doing a nissan ka24de-t. still tons of great info and very well made videos. i'll be watching for more to come! Thanks for taking the time to make this available for us to watch
Dan
Just saying. You taught me more about engine building than any other person I have ever come across, in person or on the internet. Your videos gave me the confidence to go out and build my own engine (finally... Had the damn thing for years.), and mixing what I already knew about engines and what you show in your videos... I'm proud to say that my little CA18 runs mint, has perfect compression and does what it's suppose to do! So for that, I have to say thank you. Now I just can't wait to build my next ca18 with much larger cam shafts! Keep the videos coming. We can all learn from them! : )
Great video as always. I learn something new every time I watch. Caboose cameos are also always appreciated. Thanks!
You sir are my hero. I know it's a long way off, but I'm itchin to hear this thing run. It's going to be EPIC considering all the love and attention you are giving it.
Once again youve an incredible contribution to the gearhead community. Thank you!!
And here is a tip from the blacksmith shop if you ever have to cut on sockets again or anything that may be some kind of hardened tool steel. You can get the metal as soft as they it will get by heating it up to dull red or wherever it looses magnetism and then let it cool as slow as possible which usually means dunking them it vermiculite. (Its like kitty litter and found at pet/garden stores)
This guy is amazing his videos are insperational and they allow me to keep building my 4g63T
I know this video is old... but you had me rolling with the cam/dog analogy!
Lol I'd watch Cylinder Head 206 if it was out yet! One of the best engine timing videos I've seen
Thanks man! The good news is that I had to split this video in half and only upload half of it. I'm re-working the audio track and it will be here very soon. Hopefully before the end of the week!
***** That's great to hear! Looking forward to it
I like your videos and narration. You sound intelligent and a hard worker. The funny thing is I don't like cars and I always hated working on them.
+kingmike40 Lol! Thank you Mike! I've gotta be honest... to be commenting in this video... you went straight for the hardest and most complicated topic! I can tell you still like a challenge. :)
Use a bicycle wheel spoke to extend a dial gauge! Some of them have the correct thread to screw into the dial gauge and they're straight, cheap and abundant.
Also, the correct thread for most of the dial gauges is M2.5 with 0.45mm pitch.
On another point, I like to measure my TDC using 1mm BTDC and 1mm ATDC of piston lift, as the top dead center is - as the name suggests - a dead center. Depending on the stroke-rod ratio, the piston might seem to stay completely still at TDC for more than 3-4 degrees of crank. I mark the pulley for 1mm BTDC and ATDC and the real TDC is exactly between those two.
Immensely helpful for my upcoming 6bolt assembly on a 90 GSX I'm restoring. Thank you!
Just found your videos. Great content. Very informative and easy to understand
How do you only have 120k subscribers? Brilliant stuff
I always look forward to your videos, they're therapeutic. Thanks for doing what you do.
You did an excellent job, very impressive! I'm not a Hyundai fan by ANY means, but you really did a bang up job and this stuff applies to any engine. Nice job!
Excellent. You did a great job explaining this and keeping is simple, and thankfully no annoying music! YEA!
Great instruction, commentary, and information. This video is top notch!!
top video jafro.
I will definately be making my own solid lifters for this, I didn't realize that it was that simple, here I was prepared to buy some. Be looking out for cylinder head 206
You should lookup 4g63 dotorg and read the cam degreeing section. There's a fantastic write-up with yet another method of lifter setups available. It's nice that these lifters are so prevalent in so many different junkyard cars. Every 4-cylinder DOHC 1989-1999 Mitsubishi uses them. Of course there's nothing wrong with the ones CRCO makes if you have the coin. Heck I might even buy a pair just to have them in the toolbox.
***** I am not that far into the build yet my cylinder head is ported and polished and I have all the parts for the head, gaskets and sensors for the engine but am yet to buy a rotating assembly and machine work. This sort of stuff is beyond my experience right now so ill do what I did every other time, watch videos and read manuals then dive in and I will be familiar. I will read this article on 4g63 dotorg thanks. Oh I finally got mitsubishi ASA on my computer so part numbers are a breeze. Keep it up jafro.
Sweet Caboose action! Such a good cat. Of course the vid itself was fantastic, just a ton of info professionally presented.
Caboose is an amazing cat. You never know what you're going to get, and I got lucky with that big fat-ass crazy Manx. He does most of the dog tricks. He keeps a line of sight on me no matter where I am in my house or in the yard. He's like a Jack Russel terrier.
Yeah, I have a couple of cats and I can take one of them outside with me and he will come when I call... They are a lot more social than people give them credit for.
when going through my subscriptions i noticed you (jafro) had a number indicative that some action has taken place on your account, as the page was loading i was chanting fast "new vid new vid new vid" followed by a "yay new vid!" needless to say im excited,
Nice Vid Jafro! Iam glad I didn't add cams in my build as I was unaware of the extra work that went with the cam gears. Looking forward to the next one !
I always love the videos Jafro, this was a great topic. Don't ever stop!
your videos are right on!! like how you narrate and with precision!
I wonder what percentage of adjustable cam gears are installed because they look cool and never adjusted. If there is a better source of this quality of automotive know-how, I'm not aware of it.
Thanks for all the time you put in, and of course, your relentless pursuit of audio and video quality. I know it does not come easy.
It took me 31:49mins to watching the video，you are
genius！
Great video matey.. attention to details...very well explain loud n clear👌👍🤙
pure bad ass, man the smartest thing I have seen in a long time, pure genius, you showed me a very nice trick , with building the adjustable lifter
These are the best engine videos on RUclips, I can't believe the precision you go to with motors. It's unbelievable. Do you ever work on Honda motors?
I did build a Honda once. It was a great car. I actually do miss it after 8 years of $3.50 gas prices, yes I do... I couldn't bond with the Honda performance factor. No offense to Honda owners anywhere... I just wasn't willing to do all the block sleeving and girdle work to stiffen up an aluminum block with a floating water jacket. It cost so much more to achieve the same result. I made a video about it called "Jafro's Honda Civic Confession".
Smashed the like, not only for the excellent content; but that cat RULES
Nice informative & funny video! Thanks bro! We need MORE!
I remember my cousin putting dohc heads on a 400. grinding the block, drilling and tapping holes, running a timing belt, plugging up countless of the previous timing holes, and shortly there after ruining 1800 dollars worth of top and bottom end. I also remember the day he got it right.... 9800 rpms and 630 ponies at the flywheel. His garage walls were floor to ceiling in math. Now it sits in a Catalina in Florida, Waiting to become scrap.
I'm the gal. Love your videos :-)
Connie Campbell See, I knew it! Welcome aboard! :)
With me you just doubled your female viewers lol
ค
If I may, an old school hot roddding tip for cam tuning. The motor will respond the best when you achieve the highest cranking pressure by changing valve timing events. A lot of trial and error, but I always had more time than money.
you made me feel like knowing so little of an engine... nice video!
This is cylinder head 205. It started with 101. ;)
i used to race with 4G93 and 4G63.. but always salute to professional mechanics like u guys that really patient and detail with no compromise... :)
Thank you for making this video. It was really helpful.
There is an easier way to attach a degree wheel: search google image for a degree wheel, print it out, and glue it on to the circumference of the harmonic damper. It takes a bit to ensure it's round and true to center, but mostly free is a great price
God I remember doing this to my cortina mk2 GT, I fitted a kentcam bcf3, it was a little more easier in that engine (kent crossflow) because it was a single camshaft but it was a ohv so the cam was in the block. But I had the head ported and gas flowed,, fitted 1300gt pistons in a 1600 gt block (higher compression), I also fitted vandervell bigs and mains shells and knocked to the oil pressure to 60psi plus fitted a full janspeed exhaust system inc manifold. I left it with the standard webber carb DGAV32. i did take it down the motorway and 0-60 was around 7secs and the speedo was off the clock around 120mph. This was all done around 40 years ago when i was in my teens. I beat so many cars away from the lights even the souped-up ones. The fact was I had done all the work properly and did not just bolt on after market accessories; Those was the days!!!!
Love your vids, something that might help with the tapping would be to heat (with Oxy. Acty. kit) the centre hole of the socket to a Cherry red and let it cool in air, this will relax the grain structure of the hardened metal and save your tap.
Another great video, always enjoy watching them!
Just got the notification...yaaaayyy new videos!!!!! Keep it up jafro!!
Excellent video as always.
i built engines before but i never went this far with measuring lol but its really interesting thanks for the awesome videos keep it up :)
There was at least 30hp sitting in each one waiting for you to unlock it. ;) I can't wait to see what you build the next time around!
Awesome channel! Really cool videos. Keep it up
Amazing my friend thanks for spend your time with US. Complements from Portugal!
+Sweeper Tube Your replies are disabled. It's Summit Racing part number IPA-7880.
Thank you. What about dial indicator?
Excellent video, so much information and so many good tips, love it Jafro :)
Thank you for the information... great video
I learned so much from this video. Thank you! But the most important thing I learned was that "installing camshafts is a lot like a dog pooing on your rug."
YEA!! Video!! Great work as usual. I am not sure what is more impressive, that you take the time to voice over and edit down that many hours of footage or that you actually trained a cat. The fact that you somehow did both... so how long have you been single?
Hahah... 42 years and 2 weeks.
Caboose was an easy one, and Manxes usually are because of the mutant gene. But I've got a female manx that's dumber than a bag of hammers, so that doesn't seem to help them every time. She hides all day, and that's why you haven't seen her. She's the only one I've ever had that I've never been able to train.
I learned training a cat is more about training ME to figure out what they want rather than me actually teaching them anything. If the cat is easy to read, it's easy. I just mess with them constantly before giving them what they want and it makes them forget they're cats. Every time they cooperate, I give them what they want. They already know how to do these tricks instinctively if you keep them happy, and usually don't realize they're participating in a game once they trust you.
You covered it all. Excellent video.
Ugh thus is one more thing i need to do to mirage. I dought ill find specs for a rpw cam for a 4g15. Thanks fir explaning the purpose of degreeing cams.
Perfectly done man, alway use Manufacture specs. But god damn is it hard to degree in than a ohv v8.
Ps your probably the only person who uses them to on RUclips
Few people know how to appreciate this video. There was nothing like this anywhere when I was originally trying to figure this stuff out. There were a couple of forum posts, but they contained vagaries. Either that or there was a language gap. I had 3 smart friends with limited time, or kids, or both... and every tool I could find to measure lift was made for OHV v8's. lol. The forum posts had how-to's for making tools, but I did mine a little differently here. Thanks Omar!
Why is this guy slept on?! Only 100k subs🤷🏽♂️
Most people like lambos, stuff blowing up, video games, vlogs spending money on mystery boxes, etc. This is educational and that is why I subbed. I really enjoy this form of content
Engine building and cat, I love them both.You show what the paper said and what is real life do, So can you tell how to correct and choose piston rings gap please?
Bro impressive as usual you are the men looking forward for next vid that Hyundai gone have a real blue printed moto r in it
Dogs poop on carpets... thats all i got out of this.
Nah, great video, been watching from 202 up to this one now, strangely addicting to watch how you do it as you tell why it works and how it works.
Thank you for making this great video series!
what is the difference in usage of an underdrive and harmonic pulleys, and which one would be perfect for street and strip?
Outstanding video as usual. thanks Jafro!
i love these vids... i cant wait to apply these proper learnings to my next build
(my current one is sketchy lol)
The best most informative videos
How do you know where zero is on the degree wheel is, with the piece of romex? How is that determined?
One question. You didn't tighend the head. Because the cams are now "higher" above the crank than in the future, will this effect the cam timing?
One tip that I found on RUclips finding TDC more accurate. Because the moving near tdc is so small, you can go the same high/reading on both sides, than in the middle of these degrees is the TDC.
And another Tip. You can find pdf's of degreeing wheels on the internet. I have printed them out and glue them on plywood or acrylic. Of course you have the same mounting problems.
Excellent video! thank you for all the info and tips :)
i own a 95 talon tsi fwd auto and i absolutely loveeeee your videos ive watched them all atleast 50 times and i would really like it if you did a review of your tool box / which tools youd recommend absolutely love watching your videos especially for us 4g63t guys
Would taking a performance course give me the know how to build motors on my own or should i take mechanics first?
I'm officially intimidated now. I replaced the head, springs and valve stems and now it needs to be timed.... I have a 1.6l dohc engine from my 02 accent and I know not all engines are created equal but, at least this video gave me an insight on what I'm up against.
Seriously hungry for more, i feel ive watched every single video bar a few car shows and track clips. Dont make us wait another month for 206 haha I rebuilt my nissan patrol l28 with the service manual and your guidance. I was also lucky enough to aquire a mitsa magna tf and was pleasantly surprised to find I have the same engine youve been show casing. Its a 4g64 16v, I havent started tearing into it but I feel pretty confident now. It cant be too far off from the 63, right? :p thanks for putting so much time, effort and money into these videos
Oh wow! You got the Galant Wagon. It's mostly the same... Just a different timing belt and a different bore and stroke... but yes! You will find that all of this stuff applies. You should still follow the Magna's service manual for spec, or the overhaul section of the Mitsubishi shop manual for the 2.4L if you can't find the Magna manual.
***** yea brother in aussie we call em magnas.. I wish I had a good website or forum to gather knowledge and learn which mitsas I can use as doner cars. I like the 4g64, for a 4 cylinder it goes like stink I just wanna get more haha it uses slight oil, but not enough to produce smoke. also removing the oil cap you can feel massive blowby which is taking its toll on the spark well seals.. good times!!
Can't. Stop. Watching. Jafro.
great video, lots of good info as always!!!
Wow! So much info! You are a dsm god! Thank you for the vids.
I don't envy DOHC engines.
That's a lot of work.
One thing they offer that you can't get with a pushrod motor is adjustable Lobe Separation Angles. You can still adjust the LSA on a pushrod motor, but the amount of work involved is VERY different. You know what I'm sayin'... ;P Yes, I know you do. :) You have to know a LOT more about valve timing in order to get a pushrod motor right.
***** All did was bolt up the cam and line up the dots.
Took like 10min.
Oh yeah, I know. They are easy to install. It's because the intake and exhaust profiles are all on the same stick.
With DOHC, you get infinite control of how far apart you want your cam centerline specs, and you can do it with both cams installed. The distance between centerlines is a value called Lobe Separation Angle. Pushrod motors have LSA built into the bump stick, so it's a static value that you can't change without replacing the cam. In other words, on a pushrod motor, you have to know and have calculated the perfect cam grind in order to get the most out of your build prior to purchasing your camshaft because the overlap and lobe separation angle values are built in to the cam and can not be changed. They're easier to install, but they're harder to get perfect because it requires a greater understanding of how valve timing events work.
On a DOHC, you can turn one cam independently of the other and dial in the overlap and lobe separation angles just where you need them for maximum performance. So you can purchase a camshaft that's close to what you want, and make it perfect during install. Overlap will determine how lumpy the idle is, and LSA will affect how it behaves across the whole power band.
You bring up extremely valid points, but we'll expand more on valve timing in the next video. DOHC is more troublesome to install, but offers far more tuning capability. I hope this makes sense. ;)
Hey Jafro, I have a project I'm preparing to get started with. It's a 1.4 liter OHC Opel engine, and it's currently installed on my little bite sized truck.
This engine comes stock with a 12.3 compression ratio, so I don't plan on changing stroke or bore. I also want to keep it naturally aspirated, my main goal is to improve efficiency and/or power-to-weight ratio without changing the capacity.
I'm wondering if you have any advice on how a valve/porting job on a 2 valve per cylinder OHC differs, if at all, from a 4 valve per cylinder DOHC.
Why didn't you just bleed down the lash adjusters and shim them to make solid?