cribbj wrote:
IIRC, you weren't running them with crazy tight clearances were you?
I do remember you were having some QA/QC issues with your valve supplier. Reckon you might have had some out of spec stems?
Do you have an internal valve guide mike and did you mike each one individually & match to the valve that was going into the guide?
Wasn't it an intake side issue? That seems odd.
The piston to valve are whatever JE recommended...i forgot....050" on the sides and a bit more on the face iirc. About the same valve to valve.
There was something odd with one of the intake guides that I thought must be my imagination....turns out it must have been real. The valve seemed to drag, switched valves with no change, ran the guide ream back through a couple time with not much if any change.....but it showed up when I did the leak down. tap the back of the valve and let it seat and all was well, gentle close and it would leak a little...but I'd checked it a couple times, used a couple different reamers, I figured it was the sticky lube or whatever and running it would be fine.......or it might stick and smash. I'll look at it a lot closer this time around......