Cummins engine rebuild

SVcummins

Well-known Member
The engine Is almost down to the bare block crank and rods look great bearings look like new unless they are egg shaped should just need a polish I think now to clean it up send it off to be sleeved cleaned up and bored if the other 5 holes need it
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It stays covered. Going to put a door up when it is time for reassembly . Bought a parts washer so I can clean everything taking the block to the steam cleaner to clean all the dirt and grease off then the machine shop Will hot tank if
 
It’s been warm enough it hasn’t been bad but the weather is changing I’m going to put up a door then I have a John Deere diesel heater that keeps it pretty warm even when it’s 20 below I’ve worked in a lot of shops with no heat and it was just about colder inside than it was outside
 
I was told a long time ago from an old mechanic to store your crank vertically. I have no idea if that is still true or another old wives tale. Good Luck on your rebuild!
 
I've noticed that in my barn, when the sun is out in the winter it is warmer on the concrete outside than it is inside the barn. My uncle had a couple old pellet stoves he said I can have so hopefully I will get a nice heated corner of the barn this winter.
 
Well in that case at 600k you did pretty good,and I am sure you could get another 600k out of it when it's back in the truck.I always see 5.9 cummins trucks that had close to, or over 1 million miles.I never had any experience with these engines since I deal with IH motors (IDIs,DTs) for the most part,but I have always heard they are comparable to a DT360.



Rock
 
Obsolete engine as in a 1963 engine that is in my 1963 Diamond-T. It was a road tractor but I moved the front rear end to where the rear rear end was and added more frame and made it into a dump truck. #2 sleeve cracked so it had coolant in the cylinder and oil. I could get new sleeve etc. but they where not the same as the 1963 one where so would need to do all 6
 
Heat even a little heat really makes a difference it’s been about 35 degrees so it’s not been bad working without heat at all yet
 
That’s to bad that would be a nice truck to have running you could probably put a different engine in it for cheaper than that
 
the N series engine parts interchange and they are all still available. The old part numbers have been superseded so you may not be able to get the some pistons as it has in it so thats why you would have to change them all.
 
That's not a title you see often. The durability of those engines is so impressive. As a Dodge mechanic we hardly ever saw problems out of that engine. I've done a turbo or two, maybe the same amount of cracked exhaust manifolds and the occasional leaking front cover but that's about it. I worked on the 1st gen, through the 2nd gen and into the 3rd gen high pressure common rail. Nice picture of your land out there.
 

Hey SV, did you consider a school bus cummins? Guys around here buy the bus for $3,000, pull the motor, sell the chassis, and put the Cummins in a Farmall to make a puller. They don't even open the motor, except to send the pump out.
 
Nope o bummer had em put holes in all the blocks of the old
school buses then gave the schools a pay out to replace it
 
(quoted from post at 22:27:07 12/10/20) Gas ports ?
ittle holes in the top that go through to the top ring land. The pressure created when the piston goes up with the valves closed pushes the ring out for a better seal. I had heard a long time ago that a lot of diesel engines have this. It's something that's common in racing engines. Allows the builder to use low tension rings.
 

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