<VV> OIL PRESSURE

[Bill Elliott]

I recently installed an electric oil pressure gauge myself (not Clarks) 
and I think it's reading about half of what the engine is actually 
getting.. showing virtually zero at idle on what I know is a fresh, 
perfectly running engine. (My sender is on an adapt-a-bolt on the 
filter.)  I think it's the long wiring run that may effect the reading. 
It's also possible that the sending unit doesn't have a good ground (if 
Teflon tape was used on it).

Keep in mind that a Corvair engine is low pressure to begin with... 
maxing out at 40psi. At idle you're likely to get under 10.  If your oil 
pressure light is still functional, it comes on at 4psi... if it's not 
coming on (and it works), then you have at least 4psi of pressure.

The only other advice is to make sure you're running a heavy enough oil 
if you are in a warm location. I run Castrol Synthetic 5W-50... easy 
startup and good pressure when hot. Dino oil can thin out badly when hot 
and aged.

Bill

ron turner wrote:

> Took my first drive in the 66 vert I bought last month--oil leak is 
> between trans and block--car has what previous owner called a Clark 
> Aircraft Gauge for oil pressure in the corsa dash.cruising at 70 mph 
> the pressure shows40 lbs till it starts dropping off and varying from 
> 0 to 20 to 40. Appears to be an electrical sending unit on top of 
> filter housing and connection is tight. He spent money buying quality 
> parts and im wondering if while the motor is out for the seal 
> replacement if the oil pump should be replaced or not-dont hear any 
> noise when shows 0 pressure--Anyone got experience with this unit-may 
> need new sender or should it have been mounted in another location?
>
>


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