Re: crank to rod slack – opinions ?

[jethro]

I did give the piston and cyl. bore a quick and dirty check with the digital calipers— same to within half a thousanth— not th eproper measuring
tool for that– but it didnt appear off much.
I get the impression that the needles in the lower rod bearings have some degradation from rust. I would think that would create slack—-
once I get the crank and the rod surfaces cleaned and looked at- i will have more spicifics to report.
This was a parts engine — so I had planned to do a dis-assyembly of everything- assuming nothing good…..till I see otherwise.
If parts look good- I plan to sandblast (where appropriate) parime and paint and re-gasket as i go……
Have to put my core parts to soak tomorrow to prep for cleaning and inspection.
Thanks for the guidance— will keep you posted on how the rod/crank surfaces look ……
Tim