Thanks for watching the video. If you want to help the channel out and buy the Milwaukee Fluid Transfer pump, click the Amazon Affiliate Link here: amzn.to/3mJUeXA
I have a set of parts cleaner brushes and one of them is got really soft brussels on I found that work the best lubricating no rings with engine oil or on the injectors or you can do it the old fashioned way give them in the oil for a few minutes slide them down in
I came from a Diesel engine machine shop and went to a stealership, the prima Donna's that were there absolutely hated me for actually fixing things and not just changing parts at the customer's expense. Fixed many broken valve springs, even changed compressor wheels and nickel welded cast iron cracks. I took a lot of work from the serial number guys
Sad ppl dont really repair anymore. I fix tvs, cars, heaters, washing machines. And im not even an ASE tech anymore but a carpenter. Glad i got out in 08/09 cause being a tech these days is like you said. They want a part replacer who upsales b.s.
I appreciated the tip about the toothbrush. I think so many times we forget how important it is to properly lubricate seals! I am a huge fan of petroleum jelly especially with o-rings and I apply with my hands to ensure it gets all over.
I have an old boss who knew everything total Prick. So we were slammed with jobs and he was doing valve seals on some old classic pit. I watched him walk over to the airline and unplug it didn’t say a word
Question: Why aren't all the valve springs replaced? If one failed, possibly another is ready to fail and once you are that far in just do all new springs. Understand, I'm asking from the standpoint of one the cheapest heavy equip mgr known to mankind (Granite Heavy Highway Division years ago)
I really love the videos I am a HVAC service tech have been for 24 yrs I find the videos very education and you take pride in your work and don’t mind buying tools you need for the job and to make the job easier I am the same way I have so many specialty tools also and if a tool make the job easier I will sure buy it I look forward to the videos keep them coming I want to get my CDL and drive my dad drove for 45 yrs mainly Peterbilt with C-15 CATS in them my favorite is the 6nz that’s the one I want in. 379 Peterbilt I hope to have one some day
Yeah, that comes out tomorrow I believe. I listened to it today, I say "ummm" too much, but the conversation was good I think. It's a good podcast in general.
Also I LOVE the format of your videos, they're so enjoyable to watch and the amount of information learned is worth every minute of footage. It would be cool to see you cover other things you work on, I feel like these C15 are pretty "documented" at this point. 🙂
That mercedes engine looks exactly like a Detroit Diesel DD15 engine. I work at a Freightliner dealer, and work on Detroit and cummins engines. The new DD platform engines, which are basically the same as that mercedes, are junk. My guess on that one is a wrist pin failure. I've seen it several times on GHG17 dd15 engines.
The damage on my engine was cylinder liner had dropped causing it to be on a angle and caused the damage seen by the piston, it chattered on the block so engine was replaced
Question about the c7 heui injector. Is there a company that sells the Spool/control control valve spring? (Redat is in another country) I'm rebuilding some injectors and there are some of them that have broken springs.
Hi Joshua, i always watch your videos on you tube. I have Cat C15 acert motor now last couple of months its a light smoke coming form the rubber hose which is coming up from the engine to all the way going down, i am thinking time for overhaul motor now, i have Q for you, can i motor switch for 3406e or C15 single turbo, at that point what is your recommendation, please let me know, thanks
I would still like to have a detailed explanation as to why in the world they think that that hold down bolt is not reusable? t's not a torque to yield bolt. It appears to be a properly forged and the threads look like their role formed even though it's find thread which means it shouldn't make a difference. My guess is if they insist that they don't have any faith in the bolts that they use for the hold down clamps. Call ARP and see if they have something that will replace it. I've seen engines that put out 3000 horsepower that can reuse their bolts for crying out loud. As for Wyatt uses an international valve spring, the inner valve spring helps control harmonics, and it's usually a flat spring. I am kind of surprised that it is not in this case.
I've had a couple 3400 engines have rotators/rotacoils fail and kick keepers. The last one was a 3412E, and it somehow had only kicked 1 keeper. I'm still convinced that if I'd have barred it even a bit it would've lobbed that other one and dropped that valve. The canted angle from the rotator coming apart let it pitch the one and bind the other. Edit: yeah, I forgot the "Cat name" for them haha
Our shop works a lot on dd13/15 detroit engines. They kinda look like the engine you saw in destruction of the week and I feel like its pretty common for those to leak from the side of the engine/head gasket right there. One guys truck I see every once in a while has the whole side of that engine JB welded to keep the coolant in.
I miss the music intro and destruction of the week music is there anyway you might be able to do ours permission to use the copyright the music is cool I appreciate it Josh thank you look forward to seeing more videos keep up the good work
So that Mercedes engine looks just like the DD13, which is as far as I know is a rebadged Mercedes engine. All of the special tools for a DD13 are from Mercedes and many of the bolts in the engine bare Mercedes markings. They're rather popular right now for fire trucks so you may see one up close in the future. They seem to be pretty good engines though the common rail system is occasionally troublesome and they usually develop a surging idle as they grow older. During the two years I was working on fire trucks they were almost trouble-free and what did break was often a quick fix. Saw one get a new high pressure pump.
@@elroyelblander6277 The DD13 and larger Mercedes OM (I think series) share the same block. Now is it Mercedes using the DD or is it DD using a Mercedes?
I work at mercedes benz as a truck mechanic in europe. Dd5 and dd8 equals as a OM934 and 936. Dd13, 15 and 16 equals as a OM470,471 and 473. The engines are basically the same as ditroits The only "big problem" i have seen on like 6 or 7 trucks is cylinderliners on cylinder 5 and 6 sinking at arond 500-600k miles. And yes injectors is a common problem.
At our work we have a bunch of dd13's and a few Mercedes 13 liter whatever they are called. Maybe it's just the ecm tuning but the dd13's run better and the Jake's work way way better. The Mercedes Jake's basically don't do anything other than make a little noise and make it more challenging to shift. On top of that hardly any shops will work on the Mercedes. Maybe they are the same basic engine but I'm not a fan of the Mercedes in the big trucks.
Old time method of keeping valves in place, feed a lot of cotton or nylon rope into cylinder and rotate crank till piston pushes rope against the valve heads.
Retired Catapiller Heavy Equipment Mechanic Field Mechanic in South Texas. I'm 65 years old in great shape, I was in the Marines, and I always took care of myself. Being a field mechanic kept me in shape
Take care and have a great evening with all your family around you . Adept Ape My Mentor QUICK-WITTED Adept Ape From Nick Ayivor from London England UK 🇬🇧 ⏰️ 21:35pm
O-rings on tapers, DKOL style are ALL OVER the friggin grinders I've been working on lately (C18 powered, Austrian made). DIN-style. 27-degree I believe? Obnoxious.
Definetly saved that guy 1000s. I do miss the diagnosing as a tech. Yet i make more $ now and my job is much cooler. Build high rises, stadiums, and bridges. Concrete/steel. Formwork/welding. Journeyman Commercial Carpenter/Millwright
When I did engines, I have a KD 2078 valve spring tool. I used it on Cummins to change valve spring and retainers. Can't remember if I used it on a Cat.
I've always used petroleum jelly/Vaseline on injector orings. I'm not sure if that's a good thing or not, but I like that it's thick and doesn't run off
Always an informative video. Enjoy watching your logical approach to finding and fixing these problems. Nice to see a mechanic in action versus a parts changer. Keep up the good work.
My guess the outer spring broke and the inner spring might have saved the engine, but I think the valve float probably caused the keepers to be hammered/move and that what caused the damage. Little longer and this would have been a very different video.
The tangs in the keepers are normally just there for alignment, and for the most part friction keeps them put since they are tapered. Seeing them start to shear off is definitely bad as it means the valve was floating and the retainer was hammering away on the keepers, pushing them up the valve stem. This is probably about as close as you can get without actually launching the valve into the piston crown. I think the line from Bill @PSH sums it up pretty well: “This engine was right on the edge of taking a shit…”
I think if it was mine I would have you check all the keepers on the engine. That one failed could’ve dropped a valve and ruined a piston. I don’t like taking chances like that. But with that many miles on the engine I would have had you pull the head anyway to check it for possible machining needs. Great video
Great video. I had a similar run of luck with failed EUI injector spring. Lower stakes but still scary to have a slap happy rocker arm and debris scattered around valve train
I'll probably get heckled however when I first started busting knuckles as a teenager small block Chrysler and g.m.s routinely needed valve stem seals. We would bring each cylinder to top of the compression stroke and use shop air through the plug hole by means of an adapted compression tester hose. As long as nobody disconnected the air and the rings were decent with decent valve contact ( if you get to a hole that was losing excessive air it was game over) it saved a boat load of time.
I've seen my share of broken outer springs. The keepers broke because of the broken spring puts uneven pressure on the valve rotator. The valve rotator spins the valve to keep the wear on the valve seat, face and stem even. I picked up a tiny mirror for my bore scope that you can finagle around to see cylinder walls and even the head. Mine also is lit next to the camera to light up what your trying to see.
Awesome work. Interesting that cat uses a compressor tool that compresses all four value spring pairs at once. In my experience with Subarus(unfortunately) the tools I’ve used targeted a single valve spring at a time. I can imagine it would be considerably easier to not have to compress all four down at once. Why not use a single spring design?
With my luck I would have used a fender cover or shop rag to cover as much of the head as possible before I removed the keepers just so If I dropped one or it popped out of my slippery fingers it wouldnt go down into the Engine. Bores scopes are relatively cheap these days either with a screen or they can wifi, bluetooth to a phone or tablet which is what I do.
I like the idea of the toothbrush! I always have old ones in my garage for various different projects and uses, but I never thought of using one as an oil brush like that.
