Quote:
Originally Posted by Opelotus
Say I check the rod bearings, and they have enough wear present to warrant replacement. What's the likelihood that the main bearings may also be bad?
Conversely, if the rod bearings are good, can I assume the main bearings are good?
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I replaced the two sets of rod bearings during the oil pan gasket replacements, and in my experience with these engines, I can tell you that I have not seen a rod bearing that actually warranted being replaced. (not that it doesn't ever happen)
In addition, I have helped another owner during his complete engine overhaul. His rod bearings were fine and his main bearings were even better. No wear evident whatsoever, but again they were replaced. (but not by necessity)
I'd have to recommend leaving the crank and rods alone, just based on what I have seen. Others with much more experience may tell you something else. YMMV