A reasonable operating temperature for this motor would be 190 degrees. Is
it boiling over or showing any actual signs of overheating? Or is your temp
gauge just calibrated a little high?
Freeway running shouldn't raise the temperature, though. Unless your timing
is off -- both too retarded and too advanced can cause overheating.
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires
on 7/31/06 4:48 PM, Robin Camblin at rcamblin2@comcast.net wrote:
> I have a 67 MGBGT with an early 5 main stock engine, I've tried about
> everything I can think of to correct a extremely hot temp. It seems that
> the gauge will rise to 180 plus in less than 10 minutes and climbs up to 200
> to 205 while on the freeway. After about 20 miles I exit and then do
> surface streets, avg about 45 mph and the temp goes down to around 185. All
> hoses have been replaced; thermostat is a 165, radiator flushed, etc. I was
> wondering if I should replace the water pump next it is not leaking or seems
> in any way out of sorts, could it not be pumping at high speed? Any
> thoughts or comments is well appreciated.
>
>
>
> Rob Camblin
>
> 1960 MGA
>
> 1958 MGA Coupe
>
> 1951 MGTD
>
> 1967 MGBGT
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