Quote:
Originally Posted by Glene
I wouldn't replace the rod bearings at 75K miles unless you are in there replacing the oil pan gasket. My N55 with 90K miles had a spun bearing. I polished the rod journal, replaced with new bearing, but the rod knock exists due to the rod journal is out of round. Still debating whether I should replace the crankshaft or replace the engine.
1) should I have to resurface the block and head or just clean them up? last time I replaced the head gasket in my Honda Pilot, I did not machine the surfaces, and the engine still runs as new and no issue since.
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It’s usually the big end on the rod not the crank that get out of round if was driven or revved with rod know. Even with used engine you are looking to do similar work unless you aren’t keeping the vehicle. So if you keeping them rebuild your existing engine.