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1845C skid steer. Four-cylinder Cummins metal in the oil question
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JD 9660
Posted 9/14/2024 22:37 (#10890699 - in reply to #10890557)
Subject: RE: 1845C skid steer. Four-cylinder Cummins metal in the oil question


Southern PA
ccjersey - 9/14/2024 20:41

It’s talking to you!

They’re like any other “parent bore” engine. An overhaul requires the block to be bored and honed to fit oversize pistons. The big determinant on any overhaul for me is if the crankshaft is serviceable.

Really if any of the big 3 is bad enough that it can’t be remachined (block, crankshaft, head) might want to find a replacement engine or short block as the case may be. Getting machine work done in a timely manner is getting really hard around here. Still got a place that’ll get heads done pretty quickly but block and crank work is not so easy.

If it’s making metal you’re going to be in replacement engine territory soon! Suppose it could be a cam lobe, I’m not sure what it has for lifters. What oil have you been using? There’s so many modern engines with roller lifters that are having trouble and then older flat tappet cams seem to be tricky to break in and get to last these days, can’t forget about the cam.

Friend was working on a Dodge 6.4 Hemi in a 1 ton service truck that had metal all through it from bad cam. Amazingly it wasn’t really that bad looking when we got it out. The damage was sort of subtle yet, lifters hadn’t crashed yet, it was just spalling metal off the cam. It was a little hard to believe that was the source of all the metal. It had been overheated and had at least one cracked head so it got a junkyard motor.

He put a cam in a 460 Ford to replace one that didn’t break in after the last guy put it in. It had some lobes that were about flat. Totally different look and engine didn’t show all the glitter that the Dodge had. Guess that’s the world we live in today!

My 1845C has over 9000 hours. Threw a fan blade last week but I was able to patch the radiator and a new blade and bearing for the pulley, blade etc mount cost about $170. Back going now. Bearing would have run a long time but it had some slack in it.


Those engines can be bored .030 over. There is also a machine shop in our area that will bore them out, and resleeve the bore to standard size. I don't know if anyone in your area does that or not.

When they bore them out to resleeve to standard size, they leave a small area at the bottom of the parent bore "unbored" so that the sleeve can not "settle" down toward the crank. Gives a solid "stop" so the new dry sleeve can't possibly try to migrate down over time.
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