So I’ve been rehabbing an old Moby with its original AV7. The engine’s bottom end was completely stuck. Yesterday, I started reassembling the case. I purchased new bearings, seals and an Airsal stuffed crank.
I test fit everything using plastic mock-up bearings and found there’s about .80mm of side play with the cases at spec torque w/ gasket installed. You can rattle it around.
That’s quite a bit considering the shop manual says “1/10mm” or 0.1mm. There were no factory shims and the original rusty bearing/ crank setup measures out dead nuts same across outer bearing edges.
I can only assume it was as loose previously. I purchased 2 of every shim size available from Treatland. I should be able to get it a lot closer.
I’m Just curious, if anybody else has ran into this?
From what I’ve read, shims are not too common to find in one of these engines, let alone so much.