Valve shim clearance/sizes

[canuckxxx]

I think, at this point, I would be pulling the head off and see exactly what is going on with the valves, before grinding down the shims. The valve faces might be overground or the seats may have been butchered. If things look OK then you could grind the stems so you can use normal shims.

Brian

[jizracer]

I think, at this point, I would be pulling the head off and see exactly what is going on with the valves, before grinding down the shims. The valve faces might be overground or the seats may have been butchered. If things look OK then you could grind the stems so you can use normal shims.

Brian

Normally I would agree, but before I did valve measurements I did a compression test and come up with 175psi on all four cylinders. Also looking down spark plug holes at the valves/valve seat area. They looked good and flat. Not mushroomed.

[GregT]

Well another quick and dirty way to gain more room for shims is to machine the button on the underside of the buckets....Carbide tip does it.