C18 Diesel Engine has BIG TIME oil leaks in a Big 745 Haul Truck.
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- čas přidán 10. 11. 2023
- In this video we are working a 745 Haul Truck with a C18 Cat engine in it. Oil leaks are the problem, but where are they coming from and how are going to fix them? @AdeptApe on Venmo or AdeptApe@yahoo.com on PayPal for donations, thank you so much for supporting the channel! Thanks for watching.
Amazon Affiliate link to the tools as seen in the video:
UV Professional Grade Light: amzn.to/3gzxPc0
Engine Oil and Fuel Dye UV: amzn.to/3z34zkv - Auta a dopravní prostředky
Thanks for watching, do you guys like equipment content? @AdeptApe on Venmo or AdeptApe@yahoo.com on PayPal for donations, thank you so much for supporting the channel! If you wanted to check out the UV light here is an Amazon Affiliate Link:
UV Professional Grade Light: amzn.to/3gzxPc0
Engine Oil and Fuel Dye UV: amzn.to/3z34zkv
can you perform work at your home without any problem from your employer
Thanks for the product inks.
We're not supposed to use "Razor" knives, scrapers in our shop. To much "Cut" hazard for the Safety Guy and Company.
No "Hard" hammers either, Soft steel only.
I've heard some guys say Oven cleaner will soften hard gaskets if you let it sit for awhile.
Might try some old school tricks to see if they work.
I'm sure razor scrapers will be outlawed soon here. Soft hammers are for anything over 4lbs I think at our shop. Pretty sure gravity will be deemed dangerous in the near future.
Yes, more equipment!
I do like watching the heavy equipment side of things too interesting and different kind of set up going on I do like enjoy the truck content just as much so if you can and want to do more I'd watch it
My tool box is a mix and match of tool names. Lots of snap on and lots of craftsman. Some mack, gear wrench, proto,.... It depended on which I could get quicker when I needed it. Haven't used them professionally for some time but still rebuild old junk and maintain my fleet. And then there's the grandchildren!:) One nephew and one grandson working the trade. My time was in brakes, suspension, alignment and back in the day carbs and tune up. Always fun to watch a true professional at work. Thanks!
I haven’t been watching this channel for very long. I’m a retired airline mechanic and my back just aches watching you work on this beast! You really earn your money!
I work at the caterpillar engine facility where those engines are built it’s just crazy to see the engines from being built to running in a piece of equipment. BTW that specific engine started being built on 9/16/2018 and was completed on 9/24/2018.
Any diesel content you present is very informative and easy to understand
Those huge dampers were interesting, had to be a weird vibration in that haul truck application. I used to build and test the big case ih floater trucks and on the rear cab mount pedestals were weights mounted on them. Just a bolt running through the pedestal with a bellville washer and about an 8ish pound round chunk of metal tightened to it. It sounds crude but without those installed the cab would vibrate when running. I always wondered who figured that out, kinda ingenious.
I would’ve thought that it had something to do with the way that a rock truck articulates. Still pretty cool.
Yeah, Im liking the equipment repairs!
I have a tip for removing gaskets that are cooked on. It works best with very hard brittle gaskets. Take the ball end of a small ball peen hammer and tap on it. If its very brittle it will come off very easily in big chunks. If its still a little pliable it won’t shatter off nicely, but it still distorts the gasket enough to make it way easier to scrape off !
Try Loctites Gasket remover, works very well on all gaskets. Disolves them really good then easy to scrape off.
Thanx for all the extras in the videos. And for taking the time to explain why you do what you do. Also thanx for not killing the spider. It eats other bugs.
Nice to see a mechanic who doesn't rely on "good enough."
You say that like every mechanic relys on good enough.
You my friend have a lot of patience which on a job like you do is a good thing ! Great video thanks for taking time make the video and narrating it for those of us who don't work on heavy equipment ! Your a true professional which makes it enjoyable to watch you work !
Had a good laugh watching this. Gotta love it when the fittings spin and gotta grab that backup wrench
Great video. I use a set of very sharp wood chisels for scraping. I’m with you. Less mess.
I use UV dye a couple three times a week to find leaks and a couple things I have learned is when adding to an engine, transmission, hydraulic systems is to pour the dye into oil/fluid and stir it to combine and the add that to engine/transmission/hydraulic system. The second is unless the leak is pouring out most Leaks require the vehicle/equipment/etc to be run/used instead of idling.
The injector o-ring look like they have been exposed to something like brake fluid or something similar
Great Video. I appreciate your attention to detail. I am very fussy about surface finish and gaskets as well. I work on Commercial HVACR Equipment, it’s amazing how much stuff transfers between heavy duty mechanics and Commercial HVACR, only difference is our equipment doesn’t move and normally electric driven. Thanks for the Videos.
That oil dye is very helpful.
Great video, thank you.
Brings back memories. Yes front structure and head. Also seen the cam shaft plate leak too. Had a C15 that the cam plate leaked all the time. Turned out the hole in the FS plate was out of round.
early 1980's 362 Peterbilt cabovers had 3 wiper arms
Nice hair cut, Jake Brake????????? Got chewed out by Cat, they are called Cat Compression Brake. The bolt-nut goes back to the 92U days. When the 5EK's came out, they did not have a oil relief slot on the stub shafts. Oil psi would build up and work around the threads. Oil would then leak out the front plate to block joint. I always replace the gear bushings while it is apart, along with all the self locking bolts in the gear train, cheap insurance. Have seen very few injector cup seals like what you have. Quality control at Cat must be slacking. Remind your followers what happens when you over torque the cam gear.
Technically it's a Cummins brake because it was invented by the man the Cummins company was named after and sold to jacobs diesel.
Another good video so keep them coming as I really enjoy the diagnosis and repair.
Before checking for an oil leak, I pressure wash all the old oil mess
off so I have a clean slate to start off with.
!
I’m not a heavy duty mechanic ( I do automotive diag and module programming) but I appreciate your channel and your attention to detail. Your channel and Tekamo HD are the best HD channels on CZcams.
so i’m a honda (acura really) tech by trade. never touched anything diesel in my life but watching your videos is a great learning tool.
Off-topic, but what's your thoughts on the ZF transmission
Cool
You got the music back for destruction of the week. Missed it so much.
Thanks for this interesting video. A deviation from your usual commercial trucks and RV stuff. I also noticed the music is back, I do enjoy your video with the music for destruction of the week.
We still have one or two lmtvs with 3 wipers still kicking around. Pretty neat machines
Semper Fi! 1:06 mentions 7 liter; (I have a 7 liter)
I saved this video for the end of the Holiday weekend and it just couldn't be more in tune with our odd reality as of late lol!
11:14 Cups? To everybody else, my 7 liter needed CUPS lol!
So we opted for a reman Cat Head. Been outstanding for a year now.
23:30 3406 mention. My first Cat was a 3406B! About 1 million miles++ now (friend owns it)
My point?
Happy Veterans Day!!!
Cheers!
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Thanks Josh!
Did a transmission for a guy once. When I tried to blow the cooler out it was plugged tight. Afterwards I get the whole story. Previous owner hit a deer. Paid a guy 50 bucks to put a radiator in it. He left the dust cap on the cooler line and slid the hose over it and clamped it down. Van was never right after. Its why I always try to find the cause and always blow coolers out. Ya never knwo who did what before ya.
For the dampener on the engine side. Use a large deadblow mallet and give it a few love taps. My favorite tool for fron covers is my milwaukee right angle impact. Works great.
Won't work on a Ships front Damper that weighs in excess of 2 tons or more, that is inspected on a major overhaul
I feel like you could benefit from some magnetic sockets to make sure those fasteners don't fall out of the sockets.
Ive had good luck pouring the dye directly into the oil filter, seems to get were it needs to go faster.
BIG lol compared to what, now 798 AC that's BIG lol
Really enjoying your content Josh, shout out from the mining world in Oz
Liebherr AT cranes use 3 wipers in the same fashion. That's a normal view for me lol. Excellent content and keep up the good work sir
Big fan of the JIC fittings
Our wonderful International Acco had 3 wipers too. A good simple home grown Australian truck. Now long gone sadly. Jeff
I love working on equipment.
The firetruck is a repurposed Military FMTV. It's pretty cool to see one that clean. The ones you encounter in the Army are often pretty gnarly.
i bought those scapers that you recommended and i love them!!!
Not sure if I've put this out before but, using phone wire which I think has 8 deferent colors is also great for matching air lines or electrical conns. Usually the connectors have different connectors that won't jive with the wrong male/female but airlines are well just certain sizes. A mobile Cat guy turned me on to this, even gave me a 5" x .5" inch strip that I'm still using.
Watching this reminded me why I hate working on equipment. Did some oil leak repairs on a volvo haul truck once and never again. Everything is in the way of e6l. Working on cars is much easier, lol.
I enjoy the longer videos.
Josh, I'm ok with equipment content. One of the reasons I watch Diesel Creek, Jaypaydirt, CCE, WatchWesWork, et al.
In fact, if you were to upload a shopping cart being worked on, l would watch it too. 👌🤣
My main motive here it's diesel engines but I just like to watch people fixing/restore stuff, from old writs watches accidentally submerged in salt water to cruise ship's low speed diesels.
Keep up the good work, Josh. 😊👍
Those new c18 are picky on timing the cam to the crank on tdc, put one on what we thought was tdc but it was 180 out, after a timing code we got it figured out
Excellent video as always.
I’ve always preferred to scrape gaskets off. I’ve kept that habit from axel gaskets, if you use a wire wheel it’ll look clean, but you’ve just polished the gasket and it’ll look clean even when it’s not.
Hopefully someone else knows what I’m talking about
i use 138-4528 green bristle disc, for the stubben gaskets, i do understand not wanting to dust all the clean parts too
I just would have thought that by this stage of the game, these typical oil leaks would be much less typical in these hugh end engines. A friend works on a high end (British) brand of diesel marine engine. And they don't leak- period. So it can be done. But CAT gets a premium for their engines and they leak like the not so premium brands. They clearly build a robust engine as they can run for thousands of hours and over a million miles.... but they can't keep them from leaking. Anyway, love the videos as always. Cheers!!
Depends on who put it together, just striped a C18 last week, wrong bolts,washers and they even cut bolts because they didn’t have the correct bolts.
What brand of engines never leak?
My 1999 Cummins N14 has no external leaks with 1.109 million miles and 24 years old.....😇
i call bs, the heads walk and the cam follower leak, @@michaeldunagan8268
@@michaeldunagan8268You have a N 14 Cummins with no leaks?? You better buy a lottery ticket as that’s not gonna happen ever again. 😂
Great video buddy thanks for sharing
When working with JIC fittings I always give them a smack with my wrench on one of the flats of the fitting. The impact helps break the seal and most of the time the fitting will separate and the half that is supposed to stay put does.
C 15 front structure leaks😮💨 exhausting job. I am always tightening up the engine mounts and all the bolts to try to slow down the leaks🤦
Pretty impressive
I need to get that cap for my spray deal. I have to use the 24 or pliers. I took the diverter deal out from under the nozzle and it chooches almost as good as a aerosol can does.
Subscribed, great edit.
If the gear is a 2:1 ratio it will be 180° off half of the time 😂
But why does it have a timing mark? Rest of gears don't have one.
Interesting! Cleveland Brothers just did this same job on the one I run, since new. Only 5K hrs. I’ve been very familiar with these almost since they came out. This is My 2nd new one. I’ve been doing this stuff for over 45 years, just for the record. I’m sure You are aware of the major problems with these trucks, mainly the transmissions disintegrating. I know what the problem is, and it is not the transmission, it is the shifting programming in the software that is destroying the transmissions. The updated programming made them worse. The engineers never operate these machines in the “real” world, or even inquire with veteran Cat operators such as Myself when problems arise. I’ll tell You another “MAJOR” problem with these trucks, and it relates to the oil leaks and exhaust leaks. Weather it’s oil leaking and burning on hot surfaces, or manifold coupler joints leaking, where do those fumes go when traveling? I will tell You where some of it goes, and that is right inside the operators cab! I have proof! How does it get in the cab You might ask? And just for shits and giggles, the exhaust coming into the cab is pre- def treatment. These fumes come out black vent on the right bottom side of the hood. That black louvered vent that looks like a ridge vent under the peak of Your house roof. And what is right alongside of that vent ?? Oh, yeah, the cab intake fresh air filter! What a great design! These filters are great for dust, but do not work for carbon monoxide. Like I said, I have the proof. And that is also part of the problem why the AC is “weak” on these units, sucking all that hot air in the same place the fumes are coming in. I could add more about the mirrors and lights and operating these machines in inclement weather, but that’s enough for now. Cat really effed up on this one.
I've worked on a bunch of haul trucks (mostly the 745 as they're more common), but none I've seen have a cab fresh air intake anywhere the CEM. They're behind the panel on the right side of the cab. Also, the issues with the trans are cooling related with a couple different clutch packs. They modifiy the trans case and add an additional cooling loop to those clutches. The new programming actually disables the retarder function as they were finding out excessive use of it was tearing up clutches as well.
Thanks for sharing.
The DAF also uses 3 wiper bladen on their DAF XF series and the predecessor DAF 95. With the new generation XF that came out in 2021 they went back to 2 wipers.
Very pretty engine!
Fun fact: The Toyota FJ Cruiser (2006-2022) also has three wiper arms and wiper blades due to the wide but short windshield
Automatic transmission fluid works fine too!
I got an old set that I bought in like 1983 of S&K polished wrenches love them to death they're better than any Snap-on wrench I've ever had any Mac wrench I've ever had any Maco or craftsman they're just my go-to wrenches
Old timer here from the UK, From 1970 I was a Snap on Magpie, would not have any other tool in my box, Still got almost all of my tools to this day in an immaculate KRA tool chest & roll Cab, just wanna say that Snap on nowadays are no where near as good as the early 70's for reliability & finish. Sign of the times I guess. (China Snap on )
YAY HAUL TRUCKS!! Where everything is about as inconveinient as possible. We have a set of portable steps that are tall enough so you can just step up on the left side of the engine and not have to crawl up and down the stairs on the machine.
The only time I worry about our Clatterpillar motors leaking oil is when they stop leaking! That means it’s empty! If you’d like Josh, just warranty that motor and put that motor in my Peterbilt! Back in the 1980’s Peterbilt cab overs had three wipers. Of course only is old guys remember that! Agree on the JIC fittings! And I didn’t realize haul trucks had retarders. What a terrific idea!
If your abrasive wheel is removing metal with the gasket, it’s probably too abrasive. There are many wheels with different hardness to avoid impacting the metal finish. I use a scraper occasionally too, but it often takes a terribly long time.
thanks for these awesome videos, i learn a lot from you. my dream is to be a cat technician some day as well, i’m currently working for a contractor in a mine
We Built that engine in 2018. RDP06745. Love the content.
There is a new gasket kit with ferrules for the oil return holes, common c18 problem
Being a Wheel mechanic in the army that's always working on or around CAT engines the motorpool could really use people with your kinds of experience in the bays! Thanks for doing the things I thought I'd be doing in the Army, but I'm just a glorified parts replacer and no actual troubleshooting like this. Operators run the trucks into the ground and we never pull engines apart like this! Thankfully I haven't had to replace any engines in a while but the last one I did do was a 2 Stroke Diesel out of a 80's Detroit Tanker.
Also that Fire Truck is an old LMTV Soft-top cab! I recognized the layout of the whole dash and the triple wipers. 😄
The funny long bolt on the Jake housing is called a waisted bolt. That Fire truck manufacturer also makes trucks for the US military.
Also push Tenders for most Airports around the World, they push the aircrafts away from their terminal stands before they take off
Always saw oil leaks between top of block and spare plate. 3406 and c15. Older block surfaces get wavy. Hopefully who ever worked on it before didn't use power sander and damage block. Cat says to put that thin metal gadget on dry only. Probably because it could effect liner protrusion. Had a guy come in with an older 3406 E that was dry as a bone. He said the mechanic used K W copper coat on that gadget. I never had enough guts to try that but boy that engine had no leaks
if you read the letter in a head gasket it is required for any head gasket failure.
Man I just finished working on a 745 transmission a few weeks ago and man it being my first time wasn’t that hard all the older techs hate em
Very informative for dIY . I have the same oilleak on my c15 but i dnt know the expense for a job like this. 👍
There is a model of Peterbilt Cabover with 3 wipers - maybe a 362?
that is a good part with the spider, I do that same thing alot. the fam makes fun of me for it.... good times
I'll likely never work on one of those engines since I graduated high school before it was designed but I do enjoy watching you work on them, and I pick up a few tips here and there. Keep the good stuff coming.
Your floor based tool box needs to be mounted on the end of extended fork lift boom type machine. Raise that baby right up to ya! 🤷🏼♂️
It is a dry loctite that comes from the manufacturer, it activates when torqued down.
Ok... I dont't think you know this, but I feel like I should tell you, that "scream" sound here at 20:11 and in at least one other video is not an "angry scream" and you might wanna look it up, or not :p it cracks me every time tbh knowing where it came from.
You are never more than 3' away from a spider!!! LOL!!!
Sweet man....
I know you don't work on Agco, but fendt takes pride in paint coverage. It's unreal, gotta pount on everything the first time.
Those 3 wipers made me think of the movie total recall..
saw these called a wiggle-wagon once and i will now always call them that lmaooo
Cool
Ooooh, one with oil leaks, and NOT with a dead transmission?? Spicy!
Automotive technician here and love your videos. What is an IBA housing and what does it do? Thanks for the info always trying to learn new things!
*IVA* stands for Intake valve actuator. It holds the intake valve open to help reduce cylinder temperature and NOX emissions.
I worked for a trucking company as a mechanic helper and we had a truck with a series 60 with a oil leak on the front cover. We tore it apart and resealed it and sent it out. The driver called and said it was still leaking,pulled it back apart and found a hair line crack that we missed
There’s nothing worse than trying to find an oil leak with the truck just idling minimal oil pressure you know even when you’re trying to have the engine running considerably not only other hours being tacked on, but it’s not under load conditions where the higher oil pressure is crucial to defined, leaks a lot easier.
8:00 We call them S&S in Colorado. They are the Detroit dealer. Weird it has a Cat engine.
Most likely torque to yield bolts, once torqued down the bolt physically “stretches”/expands. Torque to yield bolts tend to break if reused.
A lot of engine oil and tranny fluid "stop leaks" work my softening seals, but left in they will swell all the rubber in a system over time. I think that is what happened here.
Are those reusable ends jeff?
If so thats cool i can appreciate you a great deals keeping those good old machines running.
You gawd damm right JEFF WINS!!
My brother's Toyota FJ Cruiser has 3 wipers like the fire truck.
This is a negligence factor where maintenance is skimped. We have heaps of these 745s in mining here in Australia and we just do not see this happening.
Another great video Josh, thank you. What are IBAs? Also, it looks like the holes in the cam gear have little metal pucks in them. What are they, and what do they do?
Have you ever hit hard gaskets with a ballpein hammer? It makes them super easy to remove.
Yes, I even have a video about it. It leaves little dents in the base metal, so I only just that technique on certain things.
If you use a brass hammer it will work without causing the dents. Only on steel though with aluminum it will still cause dents
Awesome video Josh. When I used to do that kind of tedious work people said I had the patience of a saint. It takes a person w/ real integrity to pay that much attention to the never ending details. That right there is why some mechanics say the engineers hate them. But I suppose they were just like GM in that they only care about the "new" vehicle buyer no one else. At GM we spent hours & hours in meetings discussing warranty costs and they always put the emphasis on "do it right the first time" so we didn't have to eat the cost of warranty repairs, nary a second to ease of repair. One example: They proposed putting a bolt into a hold down flange and have it break off leaving nothing for the mechanic to get a hold of to loosen it. e.g. To stop unauthorized injection pump timing adjustments.
Excellent video Josh, you'd make a good aviation mechanic, but I doubt it'd pay any more. ben/ michigan
The shaft for the idler gear, the threaded hole a 2 o'clock looks different?
Those rocker shaft bolts have been updated by CAT, but you still have to use one of the older bolts for the Jake housing oil supply. Infuriates me because the old bolts are 12 point and the new ones are 6 point. Those bolts (to my knowledge) are present on c15, c16 and c18 engine families, including the 3400 series engines.
shhh he doesnt update them even tho i have told him numerous times about it
Are you referring to the double sided stud bolts like the MXS engines? I'm familiar with those that have the shaved area under the heads, but not anything else.
@@AdeptApe I'm referring to a non ACERT engine, never worked on an ACERT engine before, those rocker studs look like a nightmare. I can't seem to find the part number for the updated one I'm thinking of but I've seen them once or twice. It's not shaved down to allow oil to pass through, which is why you still have to use one of the older bolts. Will there be an update to this haul truck?
@@Frosty_Saiyajin In the hiway truck world, the rocker arm bolts on MXS, NXS and SDP series including reman long blocks or complete engines. Have a updated bolt, but you still have the reduced shank bolt for oil feed.
Starting with the late 6NZ's, MBN's and BXS, also including Reman long blocks or complete engines. Cat started using a full shank bolt, except for the oil feed on engines equipped with a Jacobs Brake. However on PAC brakes the full shank bolt will not fit through the hole, so you have to use reduce shank bolts.
If your running a Jacobs Brake you can use the full shank bolt no matter what your Cat engine. Still need the one reduced shank bolt. The part number for the full shank bolt is 2572122 it was in recalls for the 6NZ, MBN and BXS series.
I've seen the IPR stick on some of those sit-alot 3126's, or lots of idle time and not consistent oil changes. Makes them run really goofy if it sticks then moves and sticks and moves, etc. Sometimes they clear up fairly well, sometimes it comes back.
I've had really good luck doing a flush with a quart of BG109 EPR. Works way way better than the store-available flushes- used it on anything from 1.9L VW diesels to 3412E HEUI's. Works well for sticky IPR's, mild stiction on the later style injectors, and have had it help with carbon-fouled rings on smaller engines.
No miracles obviously, but a true pro-grade flush can make a big difference if used right.
Rig the damper with the crane and lift it so its semi supported at the bottom and rock away. Everything I work on is too heavy to lift and you need to get creative with rigging and the crane. I would have a 1" wide, 6 foot sling and choke them around the OD. buffers also make the surface less straight. if you want a leak use the buffer.
1st !!!! Josh always enjoy your videos !!!!!!!!!!
I’d like to see the crane use regarding the cyl head removal. How heavy? I bet its 10x a 6.7 Cummins