Briggs and Stratton

buzz saw

Member
Anybody have any luck staking a loose exhaust valve seat in a Briggs opposed twin engine? The old mower has a loose seat in the block, not really worth a replacement engine but too good to get rid of. I can't find any spec on the outside diameter of the seat to see how much the old seat is worn, but I know the pocket in the block being sloppy is causing most of the problem. Ordered a new seat in hopes it may be a little tighter in the block and will stake in place and do a quick grind and lap to make sure it's sealing OK. How much success can one expect on a job like this?
 

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