<VV> Valve seats

[Bryan Blackwell]

Thanks, that's quite helpful.  Follow up question - how do I figure out if the seats have been ground too many times?

In all honesty, I'll probably still get new seats in heads I have done for a new engine.  They are in tight and have the minimum number of valve jobs - 1.

--Bryan

On May 3, 2012, at 1:14 PM, Mark Durham wrote:

> I concur with Lon, if there is no pushed metal at the seat to head
> interface in the ports or combustion chamber, REGARDLESS of history or
> no history, they are OK to use as long as they have not been ground too
> many times! I've done thousands of seats in automotive and aircraft,
> and seats that begin to come loose at temp will move and push the
> softer aluminum. if unsure, take some pics and send them. Mark Durham