Reply to "Valve in new engine not seating"

Update:

I hand lapped the two leaking valves and tested them with gas. They both sealed. One of them (the exhaust valve) needed a lot more lapping than the other (intake valve). I reassembled everything and did a compressed air leak down test on the two valves. The intake valve was completely sealed while the exhaust valve had a very slight leak. It should seal during break-in.

The valve that prompted this posting was the intake valve and it probably would have sealed during break-in without doing anything.

While doing leak down tests early on, I came across the leaky exhaust valve. I don't think it would have sealed during break-in. While everything in this posting has been a bunch of work, it likely eliminated a big hassle later on when the engine is in the car.

10/13/248:10 AM

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