MWF FEED
18th December 2017, 11:10 PM
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?
piston.jpg (http://metalworkforums.com/attachment.php?attachmentid=371404&d=1513598225)
Attached Images
http://metalworkforums.com/images/attach/jpg.gif piston.jpg (http://metalworkforums.com/attachment.php?attachmentid=371404&d=1513598225) (79.1 KB)
Read the full thread at metalworkforums.com... (http://metalworkforums.com/showthread.php?t=201353&goto=newpost)
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?
piston.jpg (http://metalworkforums.com/attachment.php?attachmentid=371404&d=1513598225)
Attached Images
http://metalworkforums.com/images/attach/jpg.gif piston.jpg (http://metalworkforums.com/attachment.php?attachmentid=371404&d=1513598225) (79.1 KB)
Read the full thread at metalworkforums.com... (http://metalworkforums.com/showthread.php?t=201353&goto=newpost)