I disassembled the short block today. Everything looks surprisingly good. All of the bearings are grey (albeit with some wear and contamination). No sludge whatsoever. It seems to be in abnormally good shape for an engine with 170k. If I measured correctly I found the bore had worn about .015 over. I just measured one real quick. Still learning how to use the measuring tools I have.
The only thing that seemed odd to me was that all of the rod/piston pairs moved very freely on the piston pin except the #5 piston/rod combo seemed to have considerable friction. What's going on here? Should they all move freely or should they all have some friction?
The only thing that seemed odd to me was that all of the rod/piston pairs moved very freely on the piston pin except the #5 piston/rod combo seemed to have considerable friction. What's going on here? Should they all move freely or should they all have some friction?