30-03-2018, 06:34 PM
(30-03-2018, 06:01 PM)Stuart Giles Wrote: Hmm. The valve you're holding has a good margin (the amount of material above the 45° seat on the valve head). Is that exhaust valve that's still in the block in the same condition; or does it have something approaching a razor edge there?
The valve from the block is the one at top and has a slightly wider seat than the valve from the previous photo, but still has a bit to go to reach the edge.