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Re: '70 B running very hot

To: hrm200@erols.com, mgs@autox.team.net
Subject: Re: '70 B running very hot
From: Ajhsys@aol.com
Date: Tue, 20 Jul 1999 10:39:37 EDT
In a message dated 7/19/99 6:01:40 PM Eastern Daylight Time, hrm200@erols.com 
writes:

<< I'm new to the list and I had a question about my newly
 acquired '70 B.  It's been running very hot.  I removed the thermostat, ran
 it without it and it still runs hot.  The water appears to be flowing
 through the radiator when I rev the engine.  Does anyone have any other
 suggestions as to what I might check.  Thanks. >>

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Hi Heather.  Welcome to the list.  Do you turn your own wrenches?  This is 
the place for help.

You can check your radiator to see if it has a blockage.  Let the car cool 
down completely, probably overnight.  Put a new thermostat in.  It's not good 
to run with no thermostat at all.  Take off the radiator cap and start the 
car.  When you see the coolant moving around it means that the thermostat has 
opened.  Let the car heat up for another minute or two.  Shut the car off.  

If you have an electric fan, unplug the wire so it doesn't start 
unexpectedly.  Feel the radiator all over.  It should be warm all over.  If 
it has major cool areas, it has a blockage and should be cleaned (rodded) and 
pressure tested.  (An easy job for a radiator repair shop.)

Most likely you will find that the temp gauge is at fault.  They are 
notorious for giving false readings.  Does the engine seem to be running very 
hot?  When you open the bonnet does it blast you with heat?  Does the engine 
ping when you accelerate?  Look for indications of real overheating, rather 
than relying on the gauge. 

You can check the list archives for more info on testing the temp gauge.  Go 
to:  http://listquest.com/hobbies/automobiles/british  and search for temp 
gauge.

Good luck.  Let us know what you find.

Allen Hefner
'77 Midget
'92 Mitsubishi Expo LRV Sport

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