PETERBILT NT855 BIG CAM CUMMINS! ROLLING IN NEW ROD AND MAIN BEARINGS
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- čas přidán 9. 12. 2023
- IN THIS VIDEO WE GET TO WORK REPLACING ALL THE ROD AND MAIN BEARINGS IN THE CUMMINS MT-855. ITS A INVOLVED PROCESS FOR SURE WITH LOTS OF STEP BUT WE GET THROUGH IT.
- Auta a dopravní prostředky
As a guy who uses his semi for a motorhome, i appreciate all your tech videos. Been in a tech for 23 years but never on big stuff.
Thank you for the memories!! Haven't done this since the early 1980's. I remember the wedding rings very well. Excellent presentation.
Use caution on the aftermarket oil pans. Long ago with Deboss Garage or Watch Wes work, they had an issue with oil pressure on a Cummins engine. The result was the inside paint of the oil pan was coming off and blocking the pick-up tube, I believe the pan was a Dorman. The repair was to wire wheel the paint off the inside of the pan to bare steel.
hello j.c & mrs smith it's is randy and i like yours video is cool thanks j.c & mrs smith friends randy
I don't know why people feel the need to voice opinions on what they would do differently.
Your friend is the one paying for it and you are the one doing the work.
I just appreciate and enjoy watching and listening what you do and why. That is all I need.
Thanks for what you and your wife do. Don't change
My back would snap torquing those on a creeper before it ever clicked!
couple times i wasnt sure if it was my back or the torque wrench reaching its limits.
Last year I was kinda similar, no money but building a business. It's extremely hard in these times. I hope to get back at it next year.
Jc you and your wife are very good samaritans. GOD BLESS YOU 2❤
Lotta work laying on your back. I like that you explained your arrangement with the owner. At least putting money in this truck the computer won’t leave him stranded
It's been a long time since I saw the bottom end of an 855. I've rebuilt a few hundred of those (along with a bunch of L10's) back in the 80's. In my opinion, the 855 was the best engine Cummins ever made.
i believe the n14 was the last good engine cummins made.
Hey JC glad you explained about your friend, from all the other videos I thought you were just tired of his BS but now I know its not like that at all, not even BS but more about real economics and struggles to get going in business and most importantly that you are just helping out a dear friend to be successful. My hats off to you sir!
Your oil pan bolt story reminded me way back when I was working on Cleveland engine div. of GM 278A engines. They had a water cooled exhaust elbow between the heads and the exhaust manifold. Same size bolts on both flanges, fine thread on one side, coarse on the other.
I love how the both of you work together. Nice job on rolling the bearings in. Looking forward to seeing the next video.
Great video and showing how to roll in bearings. A lot of people don’t realize that doing bearings is a maintenance item on a mechanical Diesel engine.
If you do oil sampling you can watch lead being elevated and when higher levels of copper show up you know it’s time.
I guess the old saying of teaching an old dog a new trick is tough. It’s tough to cut back on pride and integrity when someone else is trying to safe money.
Great video J.C.Smith really enjoy watching you show the process for rolling new bearing into this engine. Looking forward to your next video stay safe Mr & Mrs J.C.Smith.
Nice work as always J.C 🙂👍 Take care and happy wrenching 🔧🔩
I just checked and it's been 3 months waiting on a new video Mr. Zane... chop chop lol
@@sideview79 oh, I'm trying 😁👍 Should be back soon
I watch most of if not all of your videos and enjoy how you & your lady work together, have wanted to see someone roll in rods & mains and like how your attention to detail it makes all the difference !
Wishing your friend and yourself continued success!
This is a perfect example of why you have to keep your hands clean when working on internal engine parts. Definitely caught that bearing change just at the right time. Once you are down to the soft metal it doesn’t take long to get a failure. Truck is coming together great. It’s at a point where I would feel safe driving it. I love those headlights too.
great video like the way you explain thanks again for sharing
Thanks for the video J.C.
Loved your video 👍 thanks 👍
Thank you for the extra explanations as you go through and for the insight into your repair relationship with your friend. Hope he keeps learning and growing and becoming more successful. Good working equipment, thanks to you, really helps the growth! Great job as always.
Mr. Smith,
don’t you worry or lose sleep over the quality and longevity of that oil pan.., by this time next year the whole trucking industry of this country will be switched over to all electric fleets…, yep really…, hahaha..!
I don’t know what the answer to the issues with these supply houses…, it’s just absolutely amazing the service (lack there of), that is out there.
Great video series on this engine,
Thank you sir.
there is no chance of electric taking over trucking any time soon. our electrical grid cant handle that type of expansion. it will takes decades to get it there.
@@j.c.smithprojects yes sir.., you and I know this…, just can’t seem to get the rest of them to see it. “They” will find out about making choices…, am I gonna heat/cool my house or charge my car…, it’s one or the other.., hahaha. Thank you for the reply back.
I am the same way when it comes to fasteners. Any mechanic you take a vehicle to is going to go by the book estimate for time and any shop owner is going to notice if a given mechanic is not getting jobs done efficiently. For them it is all about cranking through the production to turn that hourly rate charged into profitability via getting a lot of customers through. Does it make a difference to just put back crusty fasteners? Probably the most important part is that they are properly torqued and not mis-threaded, however, I feel better about myself and the job if I clean up the fasteners and treat them. I usually wire-wheel everything and repaint them and use anti-seize. Like you, I am trying to do myself a favor in the event I have to go back in. Then the bolts come right out easily. It is probably not worth the effort if you are not going to keep the vehicle long enough. It might add another 10% to the time. I am slow and methodical, so it might take me twice what a professional takes. I just saved about $1500 on a job I did last month. It came out great and I used some of that savings to buy a bunch more tools I needed. One of them was that XTools diagnostic analyzer. I know you had a problem with that one scan tool you had. I just did the registration steps online and it worked fine (and why I think your "free version" was so problematic).
Another great video sir 👍👍
Hi JC thank you for sharing 😊
Hello JC and Mrs. JC, I love everything you both do. Thank you for all the videos. Merry Christmas and Happy New Year.
Very interresting video, always learning new stuff from you, greetings from Belgium
Great information
Really in joyed the video, lots of good information and glad to hear your friends business is doing well , that truck should last a long time cause it was built right .
good video J.C. have a great Christmas and New Year your video's always are great to watch and lots of info which I have used working on our firetrucks up here in Cashmere Chris H.
Good job as always, and your explanation gives us a better understanding of the whole, what, when, where and why of the Truck.
Love the videos Mr. & Mrs. J.C.
Rollin bearings . A crank oil hole plug inserted then turn the crank . That’s rollin out and rollin in . I’ve done this job both ways . Attention To Detail ,,is so important . Thanks for stressing this point . I just never could wear gloves doing any repairs . Hands sweat too much ! Az desert heat . U n your assistant have a great Christmas .! At 75 I’m leaving this to U youngsters !
I only have to roll them in like that on cat engines. i can usually push these in by hand. i try to wear gloves but end up ditching them after a few minutes. didnt want part of it to get caught under a bearing or cap.
nice work
Good video, I plan on pulling a bearing in my N14 and probably rolling bearings. Engine is 30-40k+ so I want it to last. My engine is in on top of a double stacked frame so it will be fun working on my knees.
Heavily revised comment version:
Dear J.C. Smith projects family.
👍👌👏 Very well done again (video and work). 2) At first I commented differently. But after reading cullenmiller's great comment, especially the most important sentence in it, I felt the need to change my text almost completely. And not only because I'm quite torn apart. Anyway: I'm sure that you did everything you could to convince your friend (except not doing the job). As always: Thanks a lot for making teaching explaining recording editing uploading and sharing.
Best regards, luck and especially health to all 3 of you.
everything in life is a compromise. somethings are non negotiable others are less critical. i choose the battles worth fighting.
😎👍
Nice work J.C. and your Other Half, working Well as a Team... That Torque sequence on the mains must be a Ball - ache to carry out .. with ref to No 1 Shell, could it be that the fan / alternator belts were old and run to tight to stop them squeeling.. Hence why the shells were worn in a strange pattern.... Keep up the Good work .. Will wish you and your Other Half a Merry Christmas and a Happy New Year...... When it comes your way ... Stay Safe Oot There .... Andy UK
Don't think I ever saw anyone push a torque wrench for final torque.
I would always have front tires on 10" oak blocks so I had room under the axle on creeper. I would put torque wrench on mains, get in a position where my feet were on something solid, lock my arms straight and PULL on wrench slow and even by using my leg strength pushing against a part of truck, tire, frame, etc.
This was easy to do and could torque mains, even on Cat engines by yourself. Did not need anyone helping.
Just something to try if by yourself and want to save your back.
It's not different with new trucks, in fact it's worse with the same amount of work but 3x price of parts. This guy is doing good in my book keep these old trucks on the road.
People who are new to big trucks don’t really understand how things are interrelated so you can’t just fix what’s broke you gotta fix /replace what is worn but not yet in need of replacing to avoid downtime which is way more expensive than the repairs would have been.
P.S. I thought he was younger so now I get the hesitation part.
The last one I did had angle specs and I used a 3/4 impact much easier.
You're dead on about the light. The more light, the better. Personally, i bought natural light LED strip and glued it to 1 meter long strips of flexible magnet and i throw them on anything that can keep them. Really handy and the natural light makes things very visible.
The thing about LEDs that most people don't know is that with some K ranges and some types of diodes, you can actually "blind" yourself as human eyes aren't meant to work with that kind of light (to be read you'll miss details because your eyes can't adjust properly). So natural light is the best.
This engine was abused to heck and back, by comparison, you were a surgeon given how scratched those bearings were. 27:30 AFAIK, and i might be wrong because i've never actually measured this, the ends of bearings are just a hair lower than the rest of the bearing surface. Not much, but just enough. So maybe that's the inconsistency in that otherwise consistent pattern. The idea is that the lips aren't gonna score the bearing surface on the crank so that's why they're slightly lower/ground.
36:52 maybe he's afraid the driver will bump them off. I totally get what you're doing with your friend. I just feel (from your side, which is one side and maybe you're just frustrated for the work aspect so that's why it comes off that way) that he could be just a little bit more appreciative and give you just that extra leeway, especially when it's things that won't cost as much but will give a better outcome.
Dunno. If i were in his shoes (and i was there when i started my business with my own dad) i'd be a bit more receptive (and i get the money thing, there's only so much shoe string you can pull on).
I get a kick out of the old truck thing that's the only way to make a living with a truck anymore any emissions truck will break u with today's rates
What would make a big cam loose power on the low end.
Any consideration to pressure washing the engine before hand ?
had i known we were taking it apart and resealing, i certainly would have.
Hello JC and Mrs I bet you that oil pan was made not in the USA
Which LED bulbs do you like
i dont have a preference. i get a lot from @partsaam
Was the rear seal leaking looks wet
no. its dry.
You really seem like you know what you’re doing but I always steam clean the engine before I start work. Is there a reason you don’t. Just curious!
we were not suppose to be doing this right now. we were suppose to be taking the engine out and doing a complete rebuild. he changed his mind after i disabled the truck.
@@j.c.smithprojects copy that
How long would you expect that to last, under normal conditions?
it will probably start burning oil due to worn rings before these needs replaced again.
You don’t have any interest in swapping a big cam to a N14 do ya? I have the doner truck with all the wiring. Big can out of FLD, N14 out of a FLD.. N14 needs overhauled but I can do if needed. Big cam runs amazingly but just not enough torque. I’m Not so good with wiring. I am in central/southern OHIO. Love your show.
sounds like a fun job. few people understand just how involved this really is. message me. j.c.smithprojects@gmail.com
Man I sure will, I’m so glad you responded.
I'm sure there is a reason for the head lights being the way they are however I think it is ugly could you please share explain the reason why they are mounted the way they are thanks
He has explained it.
It was a snowplow truck.
When snowplow are raised to travel down the road, regular height headlights would be blocked out by the snowplow.
Hence, the high mounted headlights.
thanks. i hate answered questions i addressed in the video because skipped around and didnt watch it all..
2700 bucks for a piece of stamped steel,,,,
every thing is made in china! just rebuilt my detroit series 60 ,and stamped righr on the genuine detroit liners was made in china!
Doesn't that piss you off !!