Rallye Oil Pressure Gauge

This may be of some interest to anyone that has a Rallye dash.

I was interested in the calibration of the oil pressure gauge in my '70 Barracuda so I checked it out & found what you see below.

Using an air regulator on the oil pressure sender I started at zero pressure & worked my way up as far as the compressor would go.

The gauge did not register at all at 17 psi then at 18 psi the needle went up to the mark as shown below, the needle wasn't stuck it did the same thing every time I tested it.

Winding up the regulator gave the pressures indicated below but I didn't have enough air pressure to get a reading for the top mark.

Gauges will vary but it gives an idea what pressure you are running.

Funny enough I was thinking of fitting an extra mechanical gauge so I could see what pressure my dash gauge was actually registering.

My needle sits about half way up so I doubt I have any problems. But I always wondered what it was actually reading.

Quote:

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This may be of some interest to anyone that has a Rallye dash.
I was interested in the calibration of the oil pressure gauge in my '70 Barracuda so I checked it out & found what you see below.

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Thanks for the post. I always wonder how off my factory gauges are. I'll probably settle for a top of the line electrical. I've never had a leak (yet) on my new carpet or from any mechanical gauged vehicle I've owned but I dont like the thought of it possibly happening.