Re: No Compression

Posted by Owen_Dyneto On 2024/4/5 19:20:07

Dimensions would be nice for confirmation but by profile it appears to be the hydraulic lifter gauge for the 356 motor. Simply remove the hydraulic plunger unit from the cam follower and insert the gauge. Insure the cam follower is on the cam lobe baseline. Insert the valve and grind the end of the stem if necessary to give a clearance of between 0.030" and 0.070". Take care with the stem grinding, you can do it nicely without specialized equipment but you want it dead flat and square to the stem, a little polish wouldn't hurt. Obviously any seat work should be done first.

Early 1950s editions of Motors Manual have a fairly detailed section specific to these Wilcox-Rich hydraulic units.

If you have power valve and seat grinding equipment, it will give a fit and finish superior to what you can achieve with hand lapping. If not and the surfaces need attention, hand lapping can give a good service life.