06-02-2022, 08:08 PM
(This post was last modified: 06-02-2022, 08:20 PM by Bob Culver.)
Compression gauges came into fashion when crank handles disappeared. 50 psi is very low. Unless the rings are broken or gaps enormous should get a good "bounce" on the handle. The resistance depends much on the cr. As before can compare others at any meet.
If it has oversize inlets may have some modified cam. Has the cam been installed grossly out of step?
On the stock engine the valves "rock" about 7 crank degrees after tdc and most simple regrinds do not hugely alter that.
If it has oversize inlets may have some modified cam. Has the cam been installed grossly out of step?
On the stock engine the valves "rock" about 7 crank degrees after tdc and most simple regrinds do not hugely alter that.