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Re: Cooling Problem

To: Mark Purtell <purtell@students.uiuc.edu>
Subject: Re: Cooling Problem
From: Randall Young <randallyoung@earthlink.net>
Date: Mon, 24 Jul 2000 06:54:37 -0700
Replace the radiator cap.  If that doesn't help (at least to build
pressure), then have the system pressure tested at a radiator shop.  The
overheat is because the pump is becoming air locked.  Other
possibilities include a clogged radiator and compression leak (blown
head gasket).

Randall

Mark Purtell wrote:
> 
> I just bought my first MGB-its a 1977, and I believe that it is 100%
> stock.  The car overheats after driving it for 20-30 minutes, and then it
> will stay in overheat for a 1-3 minutes and then return to normal
> operating temperature, only to have the whole process occur again at a
> later time.  I have replaced the thermostat (195 degrees), and the
> temperature sensor.  I have noticed that the lower radiator hose doesn't
> build pressure even when the car is warmed up/overheating.
> 
> Any suggestions?
> 
> Mark

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