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Low oil pressure / thermostat

To: mgs@Autox.Team.Net, spridgets@Autox.Team.Net
Subject: Low oil pressure / thermostat
From: richard.arnold@juno.com (Richard D. Arnold)
Date: Sat, 06 Jun 1998 17:54:34 EDT
All:

The oil pressure problems are back (well, sort of -- this time I think I
know the cause).  Miss Molly the '79 Midget has started winking her oil
pressure light at me when she idling on a hot engine (about an hour or so
of driving); the pressure drops to 25-27 lbs.  The oil pump is new, and
her engine has less than 2500 miles on it.  Today was not a hot day,
maybe 70 degrees.

She has a 190 degree thermostat in her.  My guess is that this is too
high a rating, and causes the oil to thin after prolonged operation at
temperature.  I am planning to install a lower rated thermostat (as in
165 degrees), before I go to buying an oil cooler (which is on the wish
list).

Anything wrong with my reasoning?

Rich


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