panic, .006" between the teeth of the two gears where they mesh together. Vertical measurement.

Gears

The clearance between the bottom of the gears and the pump housing is almost none.

Pump Housing Cover


Jerry, the relief valve moves freely and the relief spring has good tension.

I plan on hooking up a new Oil Pressure Gauge. It probably will be more accurate then the 63 year old original gauge.

Could you explain incorrect oil clearances ?

Thanks. Michael...

1954 Chevy 3104 3 Window Hydra-Matic in my family for over 60 Years

Once in a while you get shown the light in the strangest of places if you look at it right... "Scarlet Begonias" Grateful Dead 1974