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So does the top of the sleeve actually set below the deck on the block on a low block 6-71? Can you tell a low block engine by looking at it from the outside. I’m still a little confused on the low block thing. Care to explain more?
Now that makes more since. So the liner protrusion has to be consistent and within spec. Now the sleeve OD, you don’t want it drop in, and you don’t want to drive it in, but it should just push in snug. Would that be about right? Would you want it the same for a wet sleeve and a dry sleeve?
That is a big list and a lot of work. I have not rebuilt any engines that big yet. Mostly stuff in ag equipment so alot of them are dry sleeve with no liner protrusion. I know how it can be to pay real close attention to the details and then still have some problems and then I have a neighbor who can overhaul an engine in the cow lot and it’s good to go, no problems. It is hard to find good machinist around here. I had a FORD engine I had bored oversize. When I got it together it was hydro-locking on one cylinder I guess it had started to have cavitation erosion and when it was bored it had a tiny hole in one of the cylinders that I did not see. The machine shop would not stand behind his work and it was not the costumers fault so guess who had to absorb that one! Now that model of engine I will only have it bored and sleeved back to standard.
So if the liner protrusion is to low the fire rings leak and if the protrusion is to high they can crack. I’m still not quite sure if I understand. Can you cut the counter bores and use shims like on a CAT say a 3406?
What kind of horsepower out of something like that? Always amassed me how much they could get out of those and they where still air cooled.
I have never seen one of those. Is it air, oil, or liquid cooled? Non-turbo? Is it stock in the truck or did someone just put it in.
I enjoyed reading your post. I was wondering where the problem is on those sleeves. Is it in the liner protrusion or sleeve OD to cylinder fitment. What are you paying attention to? What happens if you don’t have it right? You have me scared now. I hope to rebuild two of mine in the future and I want to get them right. Do you have to watch it on all the series or just on 71’s. You said 71’s are dry 92’s are wet, what are 53’s? Do you have to watch for this on dry and wet? I appreciate you guys being willing to teach me what it has taken all your life to learn.
I noticed in some earlier post, some talk about cylinder sleeve fitment. Does anyone care to talk about that farther? Are they dry sleeves or wet sleeves? I thought that 71’s had one kind and 53’s had another but I don’t remember which.
You could take the solenoid out to see if anything is wrong with it. If not it may be the pump needs rebuilt.
I’m not sure, the machine is not at my location right now. I’ll be going to work on it tuesday. Can you explain what you think may be going on?
I’m sorry for the confusion. When I said “reference voltage” I meet sensor power supply. Different people call it different things. The way you described it is probable the most accurate. Is that what CAT calls it? A lot of the things I work on of other brands use 5v for sensor supply. It sounds like CAT uses 5v, 8v, and even 12v sometimes. Thank you for explaining “pull up voltage”.
I was going back over this post and it is really good information. Some questions I had. How do I know if a machine uses CDL or J1939 or what about a machine that uses both? Is Ethernet only used on the really big machines like mining equipment that is very new? Was the clicker box used before CDL or is it how CDL was when it first came out?
