[Bob Carriere]

... there are a lot of mechanical oil gauges available in sizes that will match the CMP dash holes.....

Check Princess Auto........ granted you may have to paint OD over the chrome trim but the price is right.....

Speaking of blowing oil lines......

When I first primed the oil passages on my 261 I used a 3/8 high torque drill..... the crankcase had been over filled with oil and the filter connected by clear vinyl lines to the side of the block. It was nice to see the oil surge into the twin spin on filters and come out the other side back to the engine...... then poof...... none of the external 1/2 vinyl lines had been secured with clamps....... about two quarts of oil spilled all over the floor.... refilled..... installed clamps and repeated the drill priming trick..... except this time I installed a cheap Princess Auto mechanical oil pressure gauge.... I was amazed that I could maintain 42 psi of oil pressure.

Now the oil pump spin at half the speed of the crank so at 2000 rpm the pump would rotate approx at 1000 turns.... my drill probably puts out more like 2000rpm...... which would explain the substantial reading on the gauge.

I would suggest that one needs to visit the local auto parts store for over the counter mechanical oil pressure gauges that will fit the CMP size dash holes....

Boob