I had a car with overheating problems, and ended up running with no
thermostat whatsoever. then the water pump gave out (or, it was so obvious
that I finally noticed it). after replacing it, I immediately had problems
with overheating on the freeway. put a thermostat in it and all was good.
moral of the story - before it finally dies, a water pump may only be
working somewhat . . .
Sent: Thursday, July 14, 2011 7:25 PM
To: <firstname.lastname@example.org>; <email@example.com>
Subject: Re: [TR] TR3A Overheating
> Hi Dave;
> I'm not convinced an electric fan is going to cure the problem. If
> everything is as it should be, then in 85F weather the benefit of an
> electric fan
> would be felt only when idling or inching in traffic.
> Having said all that, I had overheating problems with my TR3A last year. I
> was flushing the cooling system every couple of years and using 50/50
> coolant/water. However, it still ran too hot when at 60mph in hot weather.
> at 50mph, though, and too hot in traffic. I tried different thermostats
> all sorts of adjustments.
> I finally gave up and put on every cooling system modification I could
> think of: Thicker radiator with no starting handle hole, upgraded TRF
> pump, TR6 fan conversion (which I prefer over the electric fan
> conversion). I
> don't know which one of those things cured it, or maybe it was a
> combination of both, but now the thing will warm up only in hot weather!
> I know you said the engine was rebuilt but could the water pump be weak
> was it renewed?
> In a message dated 14/07/2011 10:29:39 A.M. Eastern Daylight Time,
> firstname.lastname@example.org writes:
> During the current spell of 85F + weather recently I took my recently
> rebuilt 3A out for its first experience of hot weather. It duly duly
> proceeded to stall whenever I let the revs drop too low when pulling.
> I had to let it sit and cool for five or ten minutes each time before
> it would start again.
> I assume this was due to overheating (temp gauge was showing 200F),
> and my next move has to involve installing an electric fan?
> David Willett and Carol Gray,
> 331 Gage Street, Box 773,
> Niagara-on-the-Lake, ON
> L0S 1J0
> Fax: 905 468 3007
> Ph: 905 468 0608
> E-Mail; email@example.com