Posted by trucker40 on January 25, 2008 at 23:54:53 from (69.152.174.178):
In Reply to: 855 Cummins Question posted by Howard H. on January 24, 2008 at 20:37:34:
The older Cummins motors like before 1987 and even some made after 1987 used a liner that was easy to get ate up by cavitation.Dont remember the number on that,its been too long ago,they were black looking right out of the box.Then right around in there they put some coating on them,helped a little,think that was in the 1990s.Then they came out with a shiny looking liner thats different that I know is in N-14s.Those will go 750 thousand miles or a million in a big truck and not cavitate as long as you test the water with those strips or change your water filter every second oil change.The new liners meant you had to have something in the block bored out.That costs about 450 dollars I read somewhere on the Internet as I was looking for the same thing the other day.Plus you had to take the block out and take it to a shop somewhere to have it done.If its a Big Cam IV motor it might have those kind of liners in it allready if its newer than 1987.I dont know if tractors have the same motors as trucks,but its not a lot different.I know they used different pistons,rings,whatever else I dont know.They had special rings for dusty conditions,and something was different about the pistons but dont remember what. Getting water in your oil could be o-rings,but a way to tell maybe if its a cavitated liner is if you have black trails down your stack.Also it might smoke white all the time its running if its up high enough in the liner to where it would try and burn with the fuel.If it is missing I would say its a liner. When you got it with a fresh overhaul there could be a record of that and maybe you can tell by the parts list what liners are in it,if there is a record of it.Another way might be to use the CPL number,engine number,model number, on the tag on the front of the block,take it to a parts man and see if he can print you out a parts list for that CPL and see what number the liners on that CPL is,ask the parts man if its the old black looking ones or not.Like the others said its not hard to see if its liner o-rings,drop pan,if waters coming from outside of sleeve its o-rings,inside of sleeve its sleeves,not seeing any water coming from the sleeves is probly oil cooler.Water pump cant get water in the oil.
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