Thanks for watching and this one really is the worst overhead damage I have seen. You can help support the channel by clicking the Amazon Affiliate Links here for recommended tools: Engine Oil and Fuel Dye UV: amzn.to/3z34zkv UV Professional Grade Light: amzn.to/3gzxPc0 Allstar Oil Pressure Priming Tank: amzn.to/3L5pASm Oil Pressure Priming Tank: amzn.to/3YuBrNr Photo Tach REED: amzn.to/3ATJ8Cw
16 years ago I was a Pete Service writer. We did a pile of CAT work and I was blessed with some EXCELLENT CAT technicians. Just wanted to say I am beyond blown away by your videos and process. Love it and am sharing with everyone I know. Excellent on all fronts - the filming, commentary and the complaint/cause/correction troubleshooting you do. Just awesome - thank you so much for taking us along for the ride.
I think that got missed the 1st time around. That oil bridge wouldn't have broken for no reason. Still, unbelievable to see that damage. Good luck fixing it
One major engine damage job that always stuck with me was from my Gas compression days. We went to a L7042GSI at some gas plant that had dropped a valve. Well it had smashed up the piston so bad it contaminated all the other cylinders on that bank. For context, this is a 115 litre V12 twin turbo natural gas engine with around a 9 or 10” Bore. Well it had beat the Liner so bad it broke in several places and was expanded so it was now bigger than the top liner fit in the block, meaning it isn’t just gonna come out the top like it normally would. It took me and another guy almost all day to hammer and chisel enough chunks out of the “jigsaw” to where we could remove the liner from the block. Meanwhile the rest of the crew, 4 more guys if I remember correctly, removed all 5 of the other heads, cleaned up the debris and replaced 2 damaged liners and piston assembly’s and we had her good as new, smashing gas as happy as can be!
My old company had a fleet of MXS engines. Everyone one of them broke rocker arms at one time. Then the latest ones broke the cat brake/ iva housings. Usually the 5-6 broke first then a little while later the other 2 would crack. We always had problems with those IVA connectors. They sucked for the randomness of the connector failure.
IVA studs general fail from excessive engine brake usage. Most of the time the failure starts on cylinders 2, 4 or 6 first and work towards the front. Seen a few pedestal snapped off. The extra ladder clips was a add on in the field that Cat said to do to stop IVA connectors from breaking. First head I pulled off a SDP took way to long. So much extra components to R & I. The line on the back of the head is a tube and I actual made a fixture to bolt on the head so it goes back in the same place. It has a clamp that bolts to the rear cover. Best to replace all the IVA studs as it starts the clock over again. It is a pain but every few years when a over head is needed. Best to pull the IVA's and check bolt torque. If they are loose, replace them. Does not hurt to replace rear stud as they are usually first ones to loosen up. When I have a IVA stud failure, ALL the hardware on that set gets replaced. Nuts, bolts, everything. They have been operating not torqued and abnormal stress was added to the hardware. A few years ago a truck driver came in and told me what is truck was doing, it was a SDP. I said you have a hole in your valve cover from a broken IVA stud failure. He replied that his valve cover was OK. Then he came back and told me he had a hole in it. On a MXS, seen a few failure's so severe and with the metal valve cover. All the valve cover bolt rubber grommets was missing. The impact was trying to drive the valve cover off and finally the grommets busted and fell off. Now the big question. What does SDP stand for? You got a a project, if you can get a head.
Make sure you use the updated torque turn procedure on those rocker shaft studs and bolts. That stops the saddle wear in the head that eventually causes the fasteners to loosen and break. Great video as always.
Pulled an sdp one night for overhead noise, expecting a as you say fairly typical Iva stud issue, the foreman told the driver to wait in the lounge. I pulled the valve cover found the studs pulled the Iva housing and boom! Broken pedestal exactly like that. Needless to say I told the boss the driver might want to start shopping motels. We hated the sdp’s, constant ard updates, no more popping off an easy valve cover for an Iva solenoid, cat must have all of sudden forgot how to make water pumps because they leaked out the weep hole and they were nice enough to bury it under a mile of tubes hoses pre cooler this cgi that.
Your cat filter shenanigans are funny. Reminds me of a time I was at a shipper and they had the cab up on a yard jockey that wouldn't start. I walked over like I knew what I was doing as a few of them were looking at it, told them I knew exactly what their issues was, started pointing at different parts of the engine. "Here, here and here, this engine has red paint all over it and its not yellow, that's your problem right there" They busted up for quite a while.
@@AdeptApe yeah about that I had to shave. 🥺I had to have my son shave it into some awesome mutton chaos. My MS has hit me harder than it ever has and a long beard became too much to care for. I look forward to your videos, you have a unique perspective of machinery. Thanks bud. Your time and videos helps to pass the time while I'm recovering. Again 🙄
@@AdeptApe more chins than a Chinese phonebook 🤣😂🤣 The wife said my double chin has a double chin 😱. Good thing she likes me ... I'd hate to be hazed by her if sh hated me. 🤣😂🤣
Sorry to hear that Dan. I notice you are always leaving funny comments on all the videos and really appreciate it. Your profile picture always makes me smile with your huge beard.
@@AdeptApe thanks so much for your kind words. I'm trying my hardest to stay positive. Harder and harder to type so I'll still be watching and leave short one liners and emojis 😉👍
I had a C15 6NZ do the exact same thing. Dropped a valve, valve wedged into the top of the piston. Piston camre back up and hit the tip of the injector. Broke the bolts in the shaft and busted the cam housing on the head. 😬
Had an MXS do the exact same thing VVA studs broke and he ran it from LA to Washington state. Before they went to the 3049553 stud, this was so common. I'll send you a pic
Wow ,that is damage ,I'm just doing the same thing on my boat motor, I have a volvo penta ,it's just plain worn out but I'm trying to squeeze one more fishing season out of it ,started as changing a head gasket, now I'm changing the heads too
We didn’t see as many break after the IVA housings were updated to a thicker casting. Notice how all the Platinum rebuild kits supply a full set of studs…🫣 Seen rocker rollers go through heads before but never witnessed that much damage until now. 👌🏻cheers for sharing Josh.
I have a 2002 9300i with a C12. Place that changes my oil did not stock the 1W-8845 oil filter and would put a Donaldson on. Watching your videos and the multiple times i heard you say " use Cat filters " convinced me to go buy 8845 and insist they put it on.
Donaldson filter? she'll be right, they all look the same covered in mud. Good enough for Liebherr, good enough for CAT 😂. Looks like someone was a bit casual with tightening those bolt up, probably whoever used the harness tiedown brackets as washers. Guess they were all loose and the vibration fatigue sent them to heaven.
Thanks Josh, this was great to watch. Your assessment at some point on likely cause would be interesting. At first glance it looks to me like some previous dodgy maintenance may have gone on here. If it is this, it just shows why you need to only use people who know what they're doing.
Knew a guy who bought one of this generation in a KW brand new. It was completely junk. Down all the time. Horrible and forced him out of trucking, he said screw it and sold the thing finally at only a couple years old.
Dude that is what cat is known for. They just run. That is why I will always own a c15 nxs and earlier. They are freken tanks you have to work at killing them.
Welp, no need for a 'Destruction of the Week' segment. The subject engine of the video was its own 'Destruction of the Week'! Gosh that's incredible carnage to see, and yet it still CRANKED and RAN!
I've never seen the pedestal break. That's a new one. I've seen the pedestal wear to the point of replacement guidelines. Just when you thought, "Oh, easy bolts to get out!" The head jumps up and smacks you. "These are my bolts forevermore!"
Excellent video man! I've been watching you for some time now and only commented on some of your videos but, I enjoyed every single one I have watched. I learn something new every time. Keep up the amazing work.
Seen that a few times, the head breaking like that. Then Cat changed the rocker studs to the necked down type so the stud breaks before the head. The SDP is the engine that ended it for Cat in the trucking market, big POS.
Wow that’s major damage! Can’t say I’ve ever seen a head broken like that. What would cause that to occur? Could it be the broken studs caused more stress on that area of the head? Interesting as always!
Advice needed before someone buys a used truck how can someone test to see if oil is in coolant, fuel in oil, fuel in coolant before purchase thanks great videos
Talk about some top end carnage!!!! WOW. Definitely not a fan of emissions based versions of any engine. Just look at all that crap in the way that adds so much more garbage burying the actual long block. LOL @ the 'Trash-Fire International.' I always referred to them as "Inter-TRASHional" so that's pretty damn hilarious 😂 Can't wait to see what the pile of schrapnal looks like when the head comes off and see if there's anything else we missed... Crazy stuff. Thank you for the share as always 👍😁
Had a sdp do the exact same thing, the one I did broke the Iva housing in half and also ended up with a bent rod, (must have hydro locked due to valves not opening is the only thing I could figure)
Root cause analysis would start with was that a result of the damage or the cause. All metal castings have impurities and inclusions in them. Look for an Initiation point. I couldn't see any of the Fractures on the fasteners or casting up close but my impression is. One side of the casting Fracture appeared to be smooth indicating it was Cyclic or that way for awhile. The other side looked like a Fast Brittle,Ductile fracture. The Cam looked ok and is still retained by what's left of the casting and bearing. Could the Damage to fasteners and components all be Related to the Casting failure?
My normal upload on Sunday was off due to me being off work. I did actually record a video interview, but that is hopefully going to be coming up soon. Should be interesting, but can't be too open about what it is about.
Bridge=wisdom This last year: 2 bridge pieces -->simple fail/-->simple adjust Two different trucks 1 intake on one truck 1 exhaust on the other One was towed/ the other adjusted at new head start-up Does anybody realize how BAD it could've been on EITHER? Worst of the two was about a buck total ($1,000.00) Second was free. Head install guy caught it in time. Cheers! --- ps C12 (tow) 3126 (freebie) Yellow RULES 😉😉😉
I reckon the engine was trying to tell them... that oil bridge breaking mayo such a word way may have been a sign of things to come. Sometimes though, you don't know until you know.
I guess this video counts as the destruction of the week this week. It's pretty bad. I will be interesting to see what the root cause of all of this was.
Those are extra parts cat puts in those C15 Acert POS engines, so you can fix it... I know, I use to own one, cat told me those extra parts are for the new head... 12000 dollars and 3 days later.... that was 10 years ago...
So were the broken studs missed when the last oil bridge was replaced? Seems the broken studs would definitely cause the broken oil bridge. Classified as a come-back? It happens.
Good question, so the studs and nuts were all in place when the truck was here before. The engine was even ran with the valve cover off to find the source of the IVA oil pressure leak. Everything appeared normal on top, other than the clips on the holddown bolts, but that wasn't part of the repair. Now, that being said, the oil bridge being cracked does make me wonder if the pedestal was already cracked or possibly one bolt was cracked already, but there were no other signs or noises during the previous repair.
@@AdeptApe Agreed, I doubt it was that bad a month ago and sure it didn't have the miss or overhead noise. Definitely would be something to look out for if there was another broken oil bridge. Love the videos, keep them coming.
I have the same SDP problem. Just put a new head on it today. poor engineering design. you should have known better when it came in with a broken oil bridge. our 2 c15s both broke rocker shafts and bolts. i would highly recomend replacing the bolts at 300k to avoid these problems. if any bolt is loose or broken replace the shafts if it didnt damage the head. once one rocker shaft bolt breaks it can ruin the head. or you may be able to cheat it. the shaft will eat into the pedestal saddle. you wont know its broke till you tear it down.
💩 cheaper in the long run to put a platinum kit in and call it a day. But you might find other surprises when you do that. You are right when you started that up it did not sound right. To me that might be the only way to actually fix the engine correctly.
Hey Josh, only been watching you for about a year now. Have you every talked about how you are able to record at work and how the company and other mechanics think about it?
Some horiffic findings. Got to wonder if the last person in there did not properly torque some fasteners, or what. What the hell causes a pedestal failure like that? Brutal damage.
There is no such thing as a surprise when working on equipment. Anything can happen at any moment. God only knows who had their incompetent fingers in that engine before you. Everybody is a mechanic until... they aren't. Here's the test after any engine rebuild - start out in Wheat Ridge, CO., and run I-70 all the way across (west) to where I-70 intersects with I-15 south of Salt Lake City. That's ~500 miles! Run that going to Cali or anywhere and then run it back again (eastbound) to Wheat Ridge, CO. Make that round trip continually for 90 days. That will test an engine rebuild. Most will fail... at least 75%! But, of course, the guy who did the rebuild said: "I can do that. It'll be fun and if it fails, it's not my money." Very few people understand the intricacies of a complete engine overhaul... very few! Very few can comprehend that details matter! "Good enough" is never good enough! On this particular engine, the "white" filter is all I needed to see; that tells the entire story! And then, of course, the added parts on the top of that engine! Why not? "It should work." "We'll just add a few extra parts and that should make it last longer." A torque wrench? "Nooooooo, don't need that." Idiots! Good job, Adept Ape. You definitely understand the importance of details. Keep 'em coming. 👍👍👍👍
6NZ you have to update the rocker arm bolts, if you have a Jacobs brake. Pac brake cannot do the update. I replace them in any engine if the customer will let me. 5EK thru BXS.
No excessive engine brake usage, loosens up rear stud first, (most of the time). As stud gets loose, load is applied causing studs toward the front to loosen. Eventually they start breaking.
I got a problem with a c7 and idk where else to go I can’t seem to figure it out. Truck starts up fine when cold. Warms up and it dies won’t turn start back up. Just crank no start. I also notice a noise will go away before I crank the engine. The noise is a long fluttering clicking noise. That noise goes away when the engine won’t start back up. Not to sure what that is. Any advice from anyone to figure out what I should be looking at? I did watch the video on the heui pump but seems like everything checks out with right pressure.
Thanks for watching and this one really is the worst overhead damage I have seen. You can help support the channel by clicking the Amazon Affiliate Links here for recommended tools: Engine Oil and Fuel Dye UV: amzn.to/3z34zkv
UV Professional Grade Light: amzn.to/3gzxPc0
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Oil Pressure Priming Tank: amzn.to/3YuBrNr
Photo Tach REED: amzn.to/3ATJ8Cw
As a repair tech at Caterpillar in Seguin, TX I just want you to know I appreciate your content.
16 years ago I was a Pete Service writer. We did a pile of CAT work and I was blessed with some EXCELLENT CAT technicians. Just wanted to say I am beyond blown away by your videos and process. Love it and am sharing with everyone I know.
Excellent on all fronts - the filming, commentary and the complaint/cause/correction troubleshooting you do. Just awesome - thank you so much for taking us along for the ride.
No need for a photo of the "destruction of the week" with this one.
No kidding. OUCH.
😂😂😂
Absolutely agreed
😂😂😂😂😂😂😂
I think that got missed the 1st time around. That oil bridge wouldn't have broken for no reason. Still, unbelievable to see that damage. Good luck fixing it
I think you are right. Hope your comment gets seen.
There is no fixing that bridge. As the guy said, it means a new Cylinder Head.
@@alantorrance6153 Winner, winner, Chicken Dinner.
One major engine damage job that always stuck with me was from my Gas compression days. We went to a L7042GSI at some gas plant that had dropped a valve. Well it had smashed up the piston so bad it contaminated all the other cylinders on that bank. For context, this is a 115 litre V12 twin turbo natural gas engine with around a 9 or 10” Bore.
Well it had beat the Liner so bad it broke in several places and was expanded so it was now bigger than the top liner fit in the block, meaning it isn’t just gonna come out the top like it normally would. It took me and another guy almost all day to hammer and chisel enough chunks out of the “jigsaw” to where we could remove the liner from the block. Meanwhile the rest of the crew, 4 more guys if I remember correctly, removed all 5 of the other heads, cleaned up the debris and replaced 2 damaged liners and piston assembly’s and we had her good as new, smashing gas as happy as can be!
So much damage and yet she still fires!! Great video 👍👍👍
Yes but now it's only a 4 banger.
Yea but it’s a cat so as long as it’s get two cylinders going it will 🔥
C15 Acert: "HERE'S JOHNNY!" IVA housing bolts: RUUUUUUNNNNNN!
My old company had a fleet of MXS engines. Everyone one of them broke rocker arms at one time. Then the latest ones broke the cat brake/ iva housings. Usually the 5-6 broke first then a little while later the other 2 would crack. We always had problems with those IVA connectors. They sucked for the randomness of the connector failure.
IVA studs general fail from excessive engine brake usage. Most of the time the failure starts on cylinders 2, 4 or 6 first and work towards the front. Seen a few pedestal snapped off. The extra ladder clips was a add on in the field that Cat said to do to stop IVA connectors from breaking. First head I pulled off a SDP took way to long. So much extra components to R & I. The line on the back of the head is a tube and I actual made a fixture to bolt on the head so it goes back in the same place. It has a clamp that bolts to the rear cover. Best to replace all the IVA studs as it starts the clock over again. It is a pain but every few years when a over head is needed. Best to pull the IVA's and check bolt torque. If they are loose, replace them. Does not hurt to replace rear stud as they are usually first ones to loosen up. When I have a IVA stud failure, ALL the hardware on that set gets replaced. Nuts, bolts, everything. They have been operating not torqued and abnormal stress was added to the hardware.
A few years ago a truck driver came in and told me what is truck was doing, it was a SDP. I said you have a hole in your valve cover from a broken IVA stud failure. He replied that his valve cover was OK. Then he came back and told me he had a hole in it.
On a MXS, seen a few failure's so severe and with the metal valve cover. All the valve cover bolt rubber grommets was missing. The impact was trying to drive the valve cover off and finally the grommets busted and fell off.
Now the big question. What does SDP stand for? You got a a project, if you can get a head.
seems like u should have your own Utube channel.
@@deanberolzheimer2658 Why Josh does a great job. I just been around the block more times.
Make sure you use the updated torque turn procedure on those rocker shaft studs and bolts. That stops the saddle wear in the head that eventually causes the fasteners to loosen and break. Great video as always.
Pulled an sdp one night for overhead noise, expecting a as you say fairly typical Iva stud issue, the foreman told the driver to wait in the lounge. I pulled the valve cover found the studs pulled the Iva housing and boom! Broken pedestal exactly like that. Needless to say I told the boss the driver might want to start shopping motels. We hated the sdp’s, constant ard updates, no more popping off an easy valve cover for an Iva solenoid, cat must have all of sudden forgot how to make water pumps because they leaked out the weep hole and they were nice enough to bury it under a mile of tubes hoses pre cooler this cgi that.
Your cat filter shenanigans are funny. Reminds me of a time I was at a shipper and they had the cab up on a yard jockey that wouldn't start.
I walked over like I knew what I was doing as a few of them were looking at it, told them I knew exactly what their issues was, started pointing at different parts of the engine.
"Here, here and here, this engine has red paint all over it and its not yellow, that's your problem right there"
They busted up for quite a while.
Nice stash ... I could never get mine to curl like that. Thanks for the video
Looks like your beard more than makes up for it.
@@AdeptApe yeah about that I had to shave. 🥺I had to have my son shave it into some awesome mutton chaos. My MS has hit me harder than it ever has and a long beard became too much to care for.
I look forward to your videos, you have a unique perspective of machinery. Thanks bud. Your time and videos helps to pass the time while I'm recovering. Again 🙄
@@AdeptApe more chins than a Chinese phonebook 🤣😂🤣
The wife said my double chin has a double chin 😱. Good thing she likes me ... I'd hate to be hazed by her if sh hated me. 🤣😂🤣
Sorry to hear that Dan. I notice you are always leaving funny comments on all the videos and really appreciate it. Your profile picture always makes me smile with your huge beard.
@@AdeptApe thanks so much for your kind words. I'm trying my hardest to stay positive. Harder and harder to type so I'll still be watching and leave short one liners and emojis 😉👍
Just got done learning about Jakes in school, lol
Wow Josh! That is some heavy duty carnage!
I had a C15 6NZ do the exact same thing. Dropped a valve, valve wedged into the top of the piston. Piston camre back up and hit the tip of the injector. Broke the bolts in the shaft and busted the cam housing on the head. 😬
Hope you enjoyed your vacation.
I did, thank you.
Yep...I've seen that a couple of times. Good job with the video.
That does not look like fun. Thanks for the video Sir, stay safe and healthy.
Had an MXS do the exact same thing VVA studs broke and he ran it from LA to Washington state. Before they went to the 3049553 stud, this was so common. I'll send you a pic
Wow ,that is damage ,I'm just doing the same thing on my boat motor, I have a volvo penta ,it's just plain worn out but I'm trying to squeeze one more fishing season out of it ,started as changing a head gasket, now I'm changing the heads too
We didn’t see as many break after the IVA housings were updated to a thicker casting. Notice how all the Platinum rebuild kits supply a full set of studs…🫣 Seen rocker rollers go through heads before but never witnessed that much damage until now. 👌🏻cheers for sharing Josh.
I have a 2002 9300i with a C12. Place that changes my oil did not stock the 1W-8845 oil filter and would put a Donaldson on. Watching your videos and the multiple times i heard you say " use Cat filters " convinced me to go buy 8845 and insist they put it on.
Donaldson filter? she'll be right, they all look the same covered in mud. Good enough for Liebherr, good enough for CAT 😂. Looks like someone was a bit casual with tightening those bolt up, probably whoever used the harness tiedown brackets as washers. Guess they were all loose and the vibration fatigue sent them to heaven.
Extra leverage on each stud loosened the nuts.?
@@davestaco nah whatever tech put them on didn't have enough milk on their weetbix.
Thanks Josh, this was great to watch. Your assessment at some point on likely cause would be interesting. At first glance it looks to me like some previous dodgy maintenance may have gone on here. If it is this, it just shows why you need to only use people who know what they're doing.
Knew a guy who bought one of this generation in a KW brand new. It was completely junk. Down all the time. Horrible and forced him out of trucking, he said screw it and sold the thing finally at only a couple years old.
And just like a CAT, it still ran...wow
Dude that is what cat is known for. They just run. That is why I will always own a c15 nxs and earlier. They are freken tanks you have to work at killing them.
Welp, no need for a 'Destruction of the Week' segment. The subject engine of the video was its own 'Destruction of the Week'! Gosh that's incredible carnage to see, and yet it still CRANKED and RAN!
Awesome video Josh! Unbelievable and new destruction!! Just the carnage. Vid end made me lose it. Thank you for the belli laugh. 😂😂😂cheers Josh 🥂🍻👍💪
Joshua, I hear that a little JB Weld will have that fixed in no time. Ha ha. Really enjoy your videos, thanks for taking the time to produce them.
I've never seen the pedestal break. That's a new one. I've seen the pedestal wear to the point of replacement guidelines. Just when you thought, "Oh, easy bolts to get out!" The head jumps up and smacks you. "These are my bolts forevermore!"
Excellent video man! I've been watching you for some time now and only commented on some of your videos but, I enjoyed every single one I have watched. I learn something new every time. Keep up the amazing work.
how does that kind of damage even happen? insane
look like somebody work on it.. possible didnt put enough uga dugga or simply just a machine and it broke
Read my comments above
@@TheRick2130 more like too many ugga duggas. Torque wrenches are a thing y'know.
Seen that a few times, the head breaking like that. Then Cat changed the rocker studs to the necked down type so the stud breaks before the head. The SDP is the engine that ended it for Cat in the trucking market, big POS.
Wow that’s major damage! Can’t say I’ve ever seen a head broken like that. What would cause that to occur? Could it be the broken studs caused more stress on that area of the head? Interesting as always!
Read my comments above
most likely lateral load from the snapped studs, cast is strong under compression but lateral load will destroy it.
This is a fun one.
This guy must have hit the jakes and heard a horrific bang!
"Yeah, dunno, jakes just stopped working!"
Great video as always my dude :)
Advice needed before someone buys a used truck how can someone test to see if oil is in coolant, fuel in oil, fuel in coolant before purchase thanks great videos
Ritchie bros can fix that problem
That is sweet I have never seen that either I have built a couple of Cummins ISX and multiple other small diesels
Two adjacent cylinders could always mean a head gasket as well
Not on this type of failure
Talk about some top end carnage!!!! WOW. Definitely not a fan of emissions based versions of any engine. Just look at all that crap in the way that adds so much more garbage burying the actual long block. LOL @ the 'Trash-Fire International.' I always referred to them as "Inter-TRASHional" so that's pretty damn hilarious 😂 Can't wait to see what the pile of schrapnal looks like when the head comes off and see if there's anything else we missed... Crazy stuff. Thank you for the share as always 👍😁
Had a sdp do the exact same thing, the one I did broke the Iva housing in half and also ended up with a bent rod, (must have hydro locked due to valves not opening is the only thing I could figure)
Hahaha, the screams added for dramatic effect are great comedy relief.
I seen this on a 740 cat rock truck. What a mess
Root cause analysis would start with was that a result of the damage or the cause.
All metal castings have impurities and inclusions in them. Look for an Initiation point.
I couldn't see any of the Fractures on the fasteners or casting up close but my impression is.
One side of the casting Fracture appeared to be smooth indicating it was Cyclic or that way for awhile.
The other side looked like a Fast Brittle,Ductile fracture.
The Cam looked ok and is still retained by what's left of the casting and bearing.
Could the Damage to fasteners and components all be Related to the Casting failure?
Read my comments above
Love your content dude, informative and comedic.
Cats and Detroits have left me on the side of the road, Cummins has not. But my Cummins has a ton of money in it. Life
Signature 400?
SHARP Adept Ape
👍
From Nick Ayivor from London England UK 🇬🇧 ⏰️ 07:15am
who needs a "destruction of the week" when the truck of subject IS the destruction of the week 🤣
Just had to replace a head on mine. There was a spray weld on the old one that began to fail. Wish I had pictures
whomever worked on it last didnt do the bolt update, which helps stop the bolt breakage,
Alright need video I was looking for it Sunday an yesterday really enjoy the knowledge you have an pass along
My normal upload on Sunday was off due to me being off work. I did actually record a video interview, but that is hopefully going to be coming up soon. Should be interesting, but can't be too open about what it is about.
Thank you for your videos, really appreciate it.
Bridge=wisdom
This last year: 2 bridge pieces -->simple fail/-->simple adjust
Two different trucks
1 intake on one truck
1 exhaust on the other
One was towed/ the other adjusted at new head start-up
Does anybody realize how BAD it could've been on EITHER?
Worst of the two was about a buck total ($1,000.00)
Second was free. Head install guy caught it in time.
Cheers!
---
ps
C12 (tow)
3126 (freebie)
Yellow RULES 😉😉😉
That's me Josh lol
Sorry-just too busy
Cheers!
--
ps the 3126 is getting fresh T6/Cat + IR-1807 can @ 200+ hrs (225 hrs ideal)
Unreal performance
Seriously unreal
Thanks!
-me
Destruction of the day is the video of the day
You look just like the Donut Operator RUclips dude 😆
Now THAT’S some destruction!
Yep SDP 😮 I had one O I still have one darn it was the worst one
That’s pretty awesome!
Hope the customer never tried to accuse you of substandard work just because you previously worked on this specific truck's specific power plant.
I reckon the engine was trying to tell them... that oil bridge breaking mayo such a word way may have been a sign of things to come. Sometimes though, you don't know until you know.
👍thanks for sharing Josh 🦘
Amazed the goat wasn't screaming more. Or maybe the goat should be screaming at that weird battery hooked up to your impact gun.
Kenworth puts the air filter over the MX13 as well
I guess this video counts as the destruction of the week this week. It's pretty bad. I will be interesting to see what the root cause of all of this was.
The bolts snapped, weak alloy
Loving the mustache
Epic stache brotha
Thanks 👏
Those are extra parts cat puts in those C15 Acert POS engines, so you can fix it... I know, I use to own one, cat told me those extra parts are for the new head... 12000 dollars and 3 days later.... that was 10 years ago...
Lotsss of impact driving bolts when this was put together last.
9:45 A little JB weld and some flextape will fix that right up.
Hey you had your own destruction of the week!
So were the broken studs missed when the last oil bridge was replaced? Seems the broken studs would definitely cause the broken oil bridge. Classified as a come-back? It happens.
Good question, so the studs and nuts were all in place when the truck was here before. The engine was even ran with the valve cover off to find the source of the IVA oil pressure leak. Everything appeared normal on top, other than the clips on the holddown bolts, but that wasn't part of the repair. Now, that being said, the oil bridge being cracked does make me wonder if the pedestal was already cracked or possibly one bolt was cracked already, but there were no other signs or noises during the previous repair.
@@AdeptApe Agreed, I doubt it was that bad a month ago and sure it didn't have the miss or overhead noise. Definitely would be something to look out for if there was another broken oil bridge.
Love the videos, keep them coming.
@@AdeptApe Less then a year, parts warranty.
Wow!!! Im thinking engine replacement. What other problems are in the lower end???
Long time watcher. First time I've commented. I see you don't like non-Cat filters, buuuuuut.....the non- Milwaukee battery doesn't bother you?
Lol!
kuz the battery isnt protecting a 50000 dollar engine and someones livelyhood silly
Killer mustache dude....
I have the same SDP problem. Just put a new head on it today. poor engineering design. you should have known better when it came in with a broken oil bridge. our 2 c15s both broke rocker shafts and bolts. i would highly recomend replacing the bolts at 300k to avoid these problems. if any bolt is loose or broken replace the shafts if it didnt damage the head. once one rocker shaft bolt breaks it can ruin the head. or you may be able to cheat it. the shaft will eat into the pedestal saddle. you wont know its broke till you tear it down.
Question what does it take to break the head like that was the driver doing something they weren't supposed to be doing or just bad casting ?
Read my comments above
I’ve never seen that before I’ve seen the saddles worn in the head have any ideas what could’ve caused that
Wow!
You’re going to need to launch a separate channel just for that mustache!!😂😂😂😂
It says a lot about cat engines that it still ran after all these bolts and broke
Did someone get greedy down shifting and buzz the snot out of it?
Is that an off brand Milwaukee battery? What do you think of it?
💩 cheaper in the long run to put a platinum kit in and call it a day. But you might find other surprises when you do that. You are right when you started that up it did not sound right. To me that might be the only way to actually fix the engine correctly.
Dear God in heaven... and this thing still ran after a fashion.
I've never seen anything like that. I would blame it on a poor quality head casting but surely not on a caterpillar.
Detonation!! Over torqued ??? It looks like yee har Henry had a go a that trying to fix the lose problems and created more than a few more
Hey Josh, only been watching you for about a year now. Have you every talked about how you are able to record at work and how the company and other mechanics think about it?
Some horiffic findings. Got to wonder if the last person in there did not properly torque some fasteners, or what. What the hell causes a pedestal failure like that? Brutal damage.
There is no such thing as a surprise when working on equipment.
Anything can happen at any moment.
God only knows who had their incompetent fingers in that engine before you.
Everybody is a mechanic until... they aren't.
Here's the test after any engine rebuild - start out in Wheat Ridge, CO., and run I-70 all the way across (west) to where I-70 intersects with I-15 south of Salt Lake City. That's ~500 miles! Run that going to Cali or anywhere and then run it back again (eastbound) to Wheat Ridge, CO. Make that round trip continually for 90 days. That will test an engine rebuild. Most will fail... at least 75%!
But, of course, the guy who did the rebuild said: "I can do that. It'll be fun and if it fails, it's not my money."
Very few people understand the intricacies of a complete engine overhaul... very few! Very few can comprehend that details matter! "Good enough" is never good enough!
On this particular engine, the "white" filter is all I needed to see; that tells the entire story! And then, of course, the added parts on the top of that engine! Why not? "It should work." "We'll just add a few extra parts and that should make it last longer." A torque wrench? "Nooooooo, don't need that." Idiots!
Good job, Adept Ape. You definitely understand the importance of details. Keep 'em coming. 👍👍👍👍
Wow ,broken cam jounal rocker pedastal ,carnage for shure
This whole video was a destruction of the week.
....danger Will Robinson, danger, ermm, i mean Donaldson filter Will Robinson, donaldson [arms flapping]
Got to be pretty close to first. Jeff
You were second, I appreciate every comment though.
I had a 6nz do the exact same thing
6NZ you have to update the rocker arm bolts, if you have a Jacobs brake. Pac brake cannot do the update. I replace them in any engine if the customer will let me. 5EK thru BXS.
No DoTW?
Obviously some one was in the thing already and went to lunch halfway putting it back together
Could this damage be caused by overtorquing the bolts?
No excessive engine brake usage, loosens up rear stud first, (most of the time). As stud gets loose, load is applied causing studs toward the front to loosen. Eventually they start breaking.
I got a problem with a c7 and idk where else to go I can’t seem to figure it out. Truck starts up fine when cold. Warms up and it dies won’t turn start back up. Just crank no start. I also notice a noise will go away before I crank the engine. The noise is a long fluttering clicking noise. That noise goes away when the engine won’t start back up. Not to sure what that is. Any advice from anyone to figure out what I should be looking at? I did watch the video on the heui pump but seems like everything checks out with right pressure.
We also did change ecm and heui pump to be 100% certain and it still does the same thing.