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Re: Isuzu CC-4JG1 bending #2 rod
Posted to HD/Fleet Forum on 8/6/2018

Michael,

I have a 4JB1 head in the shop I am working on right now. I am pretty sure it is the same. I cant see any way that the oil would be getting into the cylinder unless the drain backs were so clogged up and there were no valve stem seals maybe the oil ... Login to read more.