RE: IML: catastrophic oil loss

["Brooks Harkey" <vm.dude@xxxxxxxxxxx>]

And the lesson here:  both senders are the same age.  If that one went, you
might as well change both of them while you're back there and have the tools
out, and not have to worry about a repeat performance.

--Brooks in Dallas

-----Original Message-----
From: mailing-list-owner@xxxxxxxxxxxxxxxx
[mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of Pete Engel
Sent: Friday, July 28, 2006 8:42 AM
To: mailing-list@xxxxxxxxxxxxxxxx
Subject: Re: IML: catastrophic oil loss

Fred,

The Safeguard Sentinel "sensor" is really just a plain old oil pressure
switch.  There's a special socket designed for removing/installing the
things.  In fact, there are quite a few different sockets made just for oil
pressure switches/senders and every time I think I have all the ones I need
a new style switch/sender is released.  Figures.  Anyway, you will have a
lot of difficulty removing that switch using a plain 12 point socket of any
size.  I suggest that you buy one of the sockets or find someone who will
loan you one.  Any NAPA store will have on on the Lisle rack.

The switch is simply a steel housing with a reinforced rubber diaphragm,
electrical contacts, and a spring.  On the day the leak started it was
simply time for that rubber diaphragm to give up the ghost.  No special
circumstances needed.  The usual failure mode is a slow but presistent leak.
Yours was just a bit more dramatic.  Maybe the black bakelite upper part is
cracked allowing greater leakage.

Pete in PA


From: "Frederick Joslin" <fljoslin@xxxxxxxx>
Date: Thu, 27 Jul 2006 20:05:33 -0500
Subject: Re: IML: Catastrophic oil loss

It appears that the Safeguard Sentinel system sensor is leaking. The
sensor is in very tight and I will have to work on getting it out. Weird
that all of a sudden it would start to leak. It appears that no damage
was done to the engine (I hope) so I feel very lucky.





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