Disassembling a GM 3800 series 2 V6
HTML-код
- Опубликовано: 3 ноя 2020
- In this video, I am disassembling a GM (Buick) 3800 series 2 v6 engine at 230,000 mi. to hopefully rebuild. This engine is from a 2002 Chevrolet Monte Carlo SS.
NOT SUPERCHARGED. It has overheated a lot, has some bad water damage, and knocks really bad. 
Авто/Мото
The rod journals are offset to allow for an even firing pattern, i.e. a spark plug will fire every 120 degrees of crankshaft rotation. Without the offset, the engine would have an odd firing pattern, i.e. instead of every 120 degrees of crank rotation, plugs would fire at 90-150-90-150 intervals. As you might imagine, the even firing interval provides a smoother operating engine. The original iteration of this V6 from 1961 did not have the offset rod journals and had a fairly rough idle as a result. In 1977, Buick changed the design to use the offset journals, and this V6 has had the even firing pattern ever since.
Chris, I had heard of these offset journals decades ago to achieve the even 120 degrees firing pulses, but had never seen a "real life" crank before. Checking the comments before making mine, I saw yours, but the 90-150-90-150 really had me stumped for a few minutes before I figured it out. It took a little head scratching but it clicked, Thanks.
Fireball engine? Something about AMC or Jeeps using the original 3800.
the v 8 was sold to rover / british leyland , kaiser jeep bought the v6 , amc dropped the v6 in favor of their 6 , due to the fuel crises of the early 70s buick bought the engine and the toledo plant back , they were surprized the straps to hold the machinery were still in the floor of the plant saving them a lot of effort, i read a comment by a amc official that they were surprised that gm figured out how to smooth out the engine , it was called the oddfire engine , in parts catalogs as late as 2000 they refered to the engine as such
Excellent ! job on the video man..no stupid music,,sped up the bits that needed it..showed the ins & outs us amateur ecotech 3.8 owners need, that not one single big name engine channel includes ...the ecotech 3.8 is the everymans engine and very likely the best engine ever produced..cheers from Australia down under...we use those engines over here extensively btw..and some of us are doing all we can too not let them die
Arse-traylians Awl Lhett Uss Rhee-Joyce thé
Commodés 👍👍👍👍
I just got a buick lesabre from 2000 my first car ever and I love it so much I want to keep it for as long as humanity possible and this channel is absolutely the best! I will study these videos very strictly and re watch and rewatch and thank you for your channel I find it so helpful!
Wife had an 01 Buick Lasabre great car only problem in 7 yrs rear window motor craped out
2000 Buick LeSabre. Same thing
left-rear window mechanism
crapped-out.
Dealer repair estimate: $750.00,
NO thanks.
Besides vaguely reminding me of Billy Bob Thornton in Slingblade, (which really just makes this hilarious) This is the best video on the subject, I've found so far. Well done, Billy, well done.
230 000 miles on that engine! no wonder GM 3.8's have such a great reputation. Never seen such a damaged water pump 06:53 with almost non existent fins, apparently its not an OEM pump. Thanks for showing this great content🔥
My 2008 Grand prix water pump went out at 230,000 miles.not an expensive fix tho,
I have one with 170 I can't wait to get into this engine!!!!
My 3800 series 2 blew at 109,000 miles.
She was very well taken care of. I use to get a hell of a deal on oil and filters so I was changing once a month, mostly for fun.
I did the lower intake manifold gaskets last month so, as meticulous as I am, I must have missed something.
Sounded like rod knock, then it seized up after 10 miles of knock.
I have the old motor on a stand. I can't wait to do a post-mortem on it.
any updates?
I destroyed my 3800 l67. After doing lots of work to it. I was told lifters when I bought it and I replaced them and nope it suffered from piston slap quite bad. Not to mention alot of water was under the valve covers. I put a heavy load on it and the #3 piston shattered into pieces. Now I just picked up a l32 engine i'm dropping into the l67 space with low mileage.
Excellent video. You did a fantastic job.
This makes me want to make sure my water pump is good🙉
Excellent!! Greetings from Mexico!!
Thanks for the training!
Nicely done. Thanks for sharing this info.
Love the channel wanna see more 3800 3100 content ❤❤❤❤
Very interesting. Thank you.
Nice job 👍
Man, you really need and air ratchet or a battery ratchet. My arm was beginning to hurt watching you take all those bolts off by hand. lol
Hella of a video my dude, really helps, thank you
Thanks for the info Dwight Schrute
LOL
u did awesome, i would only reccomend more audio tho glad u slowed it down or unmuted when it came to some key important factors like about the lifters
The early 1960s Fireball V6 is the ancestor of these engines. Buick came up with the offset cylinders to try to reduce vibrations.
this dude is peak chill
Where did you get the manual to rebuild that engine?
All that could've been prevented with a $20 water pump.
And a coolant change once in a while. Saving $20 on coolant (if you do it yourself) is not worth a trashed engine.
And that’s a 3800 for you. Could’ve been easily fixed and for cheap. You do your pm on these engines and they last FOREVER!
Thanks great video, very informative and helpful. You explain everything very well without other (idol) talk. Did you ever put it together?
I really like these videos do you know how many miles the engine had?
I think 200,000.
10:26 to 10:59. I had no idea the cylinders could clank like that on the block. Had an '02 Firebird with the same engine. I feel that is what happened to mine. Had to sell it. However, I know deep down it was treated better that that engine. Cooling was never an issue. Replaced water pump and elbows before they became a problem.
How crucial is the roller part? Like does it matter if roller is flipped up or down 180degrees
Can you tell me the proper torque on the valve covers after putting new gaskets in? I'm doing my 1999 Pontiac 3.8. Do I torque them down like I would on an old cork style gasket? I just want to make sure I get it right. Thank you
The book I have reads 88 in. ibs. and to tighten them down in several steps.
Your videos are the best that I've found so far! Friend, I have a 99 Firebird with a 3800 V6. It needs an oil pump replacement. If I need to take the engine out to overhaul would I be able to use the same type of stand you are using in this video?
Engine is technically the same. Removal on one from a 4th Gen F-Body is a different process.
6:40 I haven't seen a speed handle in years since the advent of the electric impact.
its dwight!!
Maybe the throws are offset so as to reduce the rod angle?
Rod angle, balance, and power transfer with a slightly longer close and open time for fuel economy. It's a smart design really.
Hey is this that same as the 3800 supercharged v6??
No. just about everything on them is different.
When i looked in my L36 none of the pushrods spun except one, is that normal
No. That one rocker arm might have been too tight.
Nice shirt
What is that tube that runs through the middle of the engine?
I think it's the balance shaft.
6:56 Holy SHIT! Was the engine running straight sea water?!?!?
Where is the oil pump then, is it part of the timing cover
Yep. It's built in to the timing cover.
@@onewhocollects6781 ok thanks mate
SPEAK UP! Breath from the
diaphragm! Remember that? lol
Your doing a full tear down and disassembly of the entire engine. Why wouldn't you want to replace and upgrade whatever you can whenever you can while the motor is out of the car...🤔?
It's like taking apart the bottom end, replacing the crank and keep the old bearings -- believing that you can get a few more miles off of them!
All I can hear in his voice is "should replace this" but I can probably re-use it"...!
* Might as well keep that old water pump you removed and tell yourself that with the right coolant and thermostat it won't matter that the water pump impeller is destroyed -- 🥴!
Complete engine rebuild. It'll take 6 weeks to tear it down just to put 6 quarts of fresh oil back in it and whoola...Brand New Engine on a budget! 👍
Death cool was here 😥
I would not reuse the bearings no matter how good they look, too many miles.
I was wondering what book he was using??
3800 mechanics manual
@@kyronius4183 how is the book. I own a 02 Buick Regal LS, and have acouple manuals (Haynes) > I do all my own work, so after time you get to know your vehicle pretty good. Just some torque specks are different in the 2 books I have.
What manual are you referring to in this video?
Haynes repair manual for 1995-2005 Monte Carlo. I got it off the shelf at Autozone.
@@onewhocollects6781 Thanks for the tip! I'm gonna get one for my Bonneville engine.
Also how'd you get the bottom left hole to mount to your engine stand? The one with the metal sleeve in it. I can't get it to line up properly with my stand.
@@jamesmoran8294 It just fit on my stand. I did have to add shims to the others so it would bolt up flat.
@@onewhocollects6781 Thanks for the tip.
which 3800s don't have coolant issues😂
It's true.
Overheating was definitely that orange coolant shit(dexcool)
Great job on videos dude. But you talk pretty slow. Is that for your viewers to keep up or do you smoke eucalyptus leaves.lol just kidding. Im glad for the video because i just bought a 2004 impala ss 3.8 170,000miles
Watsup can I ask you something I have da same motor thanks
Should have did the video and more detail
🤘🏻 🌟 🤘
I watched until I saw the pipe wrench on the crank snout, that's when you confirmed you don't know what you're doing!!
Where's your video of how to... ? At least he's on here fixing engines that could cost thousands for a big box garage that will scam you for a new engine...
Wish all things were metric. imperial is just a damn waste.
Dirty oil in a super Abused engine..
Fuck is this another rediscovered Elliot Roger video or a car video
Who?