Quote:
Originally Posted by Walt Dupont--Me.
After I have my blocks oven baked and short peened I ....
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A question about shot peening: Do you guys (engine machinists) think that shot peening roughs up the bearings surfaces enough that they need to be honed smooth again. A friend who is a retired machinist (industrial, not engine shop) says that the grit will raise the surface of the block, and cause the tolerances to close up so the main bearings, cam bearings, and lifters will not fit correctly. He likes to run a hone through all those openings to knock down the surfaces. What do you guys think and do?
I suggested we just leave the old bearings in the block when we have it blasted, but that still doesn't protect the lifter bosses.