How about something completely different...
My GT6 had a similar problem, and after replacing nearly everything in the
cooling system, I finally tracked it down to the voltage stabilizer
(connected to the back of the speedo).
One hint for this kind of problem ... does the fuel gauge work properly, or
does it too go up with higher RPMs? Both the temp and fuel gauges get a
stabilized voltage through this device.
Suggestions ... when the temp gauge reads hotter than you like, feel the top
of the rad (gingerly, mind you) to see if it really is hot... or get some
temp sensitive crayon/marker and mark the rad to actually determine the
temp.
Michael
----------
Michael Bayrock
70 & 71 GT6+
Date: Sat, 28 Apr 2001 12:16:39 -0500
From: "Mike Nelson" <mnelson@tconl.com>
Subject: Overheat at high RPM's
Terry T's advice has helped a great deal with solving my overheating
problem. last night at my British Car Club meeting, when I described the
problem about the temps climbing at 3000 RPM and greater, they immediately
said it was timing.
Well, I borrowed a timing light, and it tested at 20 degrees BTDC. Specs
say 10 degrees. I adjusted it, idle has gone down to 700, pickup and
acceleration seem to suffer a bit. Temps still rise.. drats.
What next? Mine is a front leaning electric fan version, '79 Spit. I
removed the entire front bumper to eliminate the lack of airflow issue.
Thermostat has bee replaced to a 160 degree. Timing has been adjusted. I
will flush the system this afternoon and need some advice on how to
accomplish that. Any other ideas?
Mike Nelson
Omaha
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