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Thread: shot peening
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18th December 2017, 11:10 PM #1Most Valued Member
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shot peening
Does anyone have experience of shot peening engine parts?
I have a NOS set of old Morris 4 ring pistons, a aftermarket brand . These are heavy pistons which I think means they have a high iron content. These type of pistons normally have a thin tin coating , the tin coating aids the running in process. In this case the tin has come away or fallen off after many years of storage.
Years ago I shot peened a set of used chevy iron pistons , I actually used a fine sand but I think the professionals use glass or ceramic beads . Anyway the chevy pistons have been running without any problems. I am wondering If I should do the same with these Morris pistons?
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