[T3] Oil Pressure Sensors....etc.

[J. Jonik]

I'm talking about the Oil Pressure Sensor that goes on top of the Oil Cooler...the gizmo that sends message to the red light on the dash.   That is called the "Oil Pressure Sensor", right?   Haven't found it in the books yet. I know it's there.   
 But discussion of leaks didn't show up in VW Manuals for cars 40 years ago.

All sensors I have seem to be appropriate, vis a vis the threads.  

The ones that leak don't leak at the base but at a) the electrical tab on top, or b) around the circular plastic top, where it meets the metal.  You can see it sort of seeping out.

Where to get new pressure sensors...at the price mentioned?  I'll take three.   

Date: Tue, 01 Feb 2011 18:37:44 -0600
From: Russ W <russw at classicvw.org>
To: type3 at vwtype3.org
Subject: Re: [T3] Oi Pressure Sensors
Message-ID: <4D48A758.50701 at classicvw.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 2/1/2011 1:40 PM, J. Jonik wrote:
> I have four oil pressure sensors.   One is in the car, but it leaks.
> Two leak...not much but still messy.
> Two don't work the dashboard light.
>
> Is there any trick to stop leaking?  Some heat and pressure maybe? What's inside those things? How do they work?
>
>
 As for the light...using OHM meter, found no continuity between 
screw-in end and the electrical tab on top of 2 sensor.     The one that
 works for the light does have continuity.  (I didn't take the one out 
of the car. It's light works.)
>

Be sure your have the right pressure sensors.  There are 2 different 
threads that VW used.
Taper thread which is right for our engines.  Then there straight 
thread.  These are mostly for water cooled, and use a copper washer to seal.
Also, there are several different pressure used.
For example, my VW Fox has 2 oil pressure switches.  one is on the oil 
filter mount, and once it makes, it starts a timer.  If the second one, 
on the back of the cylinder head, does not make withing the alloted 
time, then the oil light starts blinking.

There is no way to reseal an oil sender.  Just go buy the right NEW 
switch, and be done with it.  $3-$4 each.

-- 
Thanks,
Russ Wolfe
russw at classicvw.org




      
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