Kohler valve seat
- Thread starter ghost1
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grumpyunk
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- Jul 13, 2015
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I think you mean 'peen' the seat in place. If so, I would think that aluminum heads will act the same for both brands. I would want to know how tight the seat was when pressed back into the head, either by hand, or using a press. If it was sloppy, floppy, or loose in the least degree, I would expect that peening the edges of the head recess over the edge of the seat would not be a long-term fix.
OTOH, if the seat was a good firm press into the head, and had insignificant clearance, I mean SNUG, then peening might well hold the seat in place for a long time.
Other choices are replacing the head, or seeking a machine shop that can fit a new seat with a larger OD, after milling the recess for proper fit. Most, I think, use temperature to shrink the seat, and heat the head, allowing a cold, shrunken seat to fit into a hot, enlarged recess with some 'press' help. I believe they are a 'press fit'. There are actual dimensions and descriptions of 'press', and other fitting terms I have not memorized. See: web.
tom
OTOH, if the seat was a good firm press into the head, and had insignificant clearance, I mean SNUG, then peening might well hold the seat in place for a long time.
Other choices are replacing the head, or seeking a machine shop that can fit a new seat with a larger OD, after milling the recess for proper fit. Most, I think, use temperature to shrink the seat, and heat the head, allowing a cold, shrunken seat to fit into a hot, enlarged recess with some 'press' help. I believe they are a 'press fit'. There are actual dimensions and descriptions of 'press', and other fitting terms I have not memorized. See: web.
tom