Hi Harry:
"The store claimed there was blockage". I assume you meant to type there was no
blockage. Are you sure that you do not have a head gasket leak? Does coolant
get pushed out of the rad via the cap fairly soon after startup, or does this
occur only after the overheat temperature is reached? The TR6 is great at
getting a bubble in the water pump if there is a head gasket leak. It then
stops circulating the coolant and the overheat starts. At that point the car
boils the coolant and the steam pushes it out of the engine. The vaporizing of
the coolant then becomes the primary heat removal mechanism which holds the
temperature down for a while until the fluid is gone and then you really
overheat and seize.
Mark
1972 TR6
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net]On
Behalf Of Harry Hart
Sent: Wednesday, September 07, 2005 3:07 PM
To: 6pack@autox.team.net
Subject: RE:overheating
My 72 TR has developed a overheating problem. When I measured the temp on the
radiator it varied from the top to bottom and from left to right. I had the
radiator checked out and the shop claimed that there was blockage. I then put
the radiator back in and drove it 10 to 15 miles, and the car overheated
again. I then put a new cap on the radiator and got the same results -
overheating. I was hoping that some one might have some ideas about this
problem
Thanks
Harry
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