oil pressure problem

I'd like some advice where the problem is no reading on the gauge ( and can
use a Volt-ohm-meter if have to).

It is a three wire Electric gauge and a bell shaped sensor with the lead
attached at the top. Although upon sensor removal, there was oil pressure
(squirting G).

Could I check for meter needle deflection by striking the disconnected
sensor lead to ground or will that destroy the meter? Could I apply some
air pressure to the sensor and read a resistance change?

Thanks, Dick

Dick wrote:
I'd like some advice where the problem is no reading on the gauge ( and can
use a Volt-ohm-meter if have to).



Could I check for meter needle deflection by striking the disconnected
sensor lead to ground or will that destroy the meter? Could I apply some
air pressure to the sensor and read a resistance change?


1st. Verify the sender is working by removing the single wire and
attaching your
ohm meter from the output to a known good ground. If the sensor is
good, you will
get a varying number as pressure changes.

2nd. Check for voltage coming from the gauge lead with a/c power on.

3rd. Check for voltage to the gauge and the light, also checking the
the case does
have a good ground.

If all check out ok, hang a mechanical gauge to verify that you do
have pressure.

cvairwerks.
Thanks for the advice. I'll try tomorrow.

Noting your email address, I thought I'd advise that the engine is a Corvair
in a Midget Mustang project. Been so long since I built it that I forgot
where the original automotive temp and pressure sensors were located on the
engine. I have a "tree" with oil pressure and temperature sensors on top
and alongside the plugged mechanical fuel pump opening.

Would you advise where the original oil press/temp sensors were installed?

Thanks, Dick


"Dick" wrote in message
news:l_i9i.33$ng.32@trnddc07...
I'd like some advice where the problem is no reading on the gauge ( and
can use a Volt-ohm-meter if have to).

It is a three wire Electric gauge and a bell shaped sensor with the lead
attached at the top. Although upon sensor removal, there was oil pressure
(squirting G).

Could I check for meter needle deflection by striking the disconnected
sensor lead to ground or will that destroy the meter? Could I apply some
air pressure to the sensor and read a resistance change?

Thanks, Dick