> > While sitting (driveway, red lights, city traffic) my 62 TR3B
>> will get hot and overheat. While moving (highway driving, not
>> stop and go) the temp i sfine. I have placed the radiator shroud
>> in, but have not done anything else. My thought is that the
>> radiator needs to be recored as it probably never has been. So I
>> was going to start ripping off the front cowel to get to it. Is
>> there an easier way to determine if it needs to go to the shop?
>> If it doesn't need to go, I can avoid the work and pain of tear down.
>
>Ask your local radiator shop if they can do a flow test with the radiator
>still in the car.
>
>Since it works OK at speed, I'd say the problem is not likely to be the
>radiator ... but a recore that deletes the crank hole is bound to help, no
>matter what the underlying problem is.
See the previous thread about fans for TR4s. Does your car have an
engine-driven fan or an electric one? If it's the former I suggest installing
an electric fan with a thermoswitch and a manual override, plus a fan indicator
on the dash
Although recoring the rad might be a good idea, installing an electric fan is
definitely a good idea, IMHO
If you remove the fan and the extension piece on the nose of the crank you will
disturb the beautifully-balanced nature of the Triumph pig-iron tractor engine
(harumph, harumph) and should use a harmonic balancer. But I think most people
don't bother...
Just bear in mind that if this overheating is a new phenomenon it may have a
deeper cause. Check that the car isn't losing water and that the cylinder head
gasket isn't failing. See my earlier post on this topic
Nick Froome
http://www.bolide.co.uk
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