overheating issue

[badger1bear]

Hi guys, I am running a Craig Davies electric water pump on a TVR350 engine in a large pickup truck. When I am driving down the road the water temp stays fine but if I hit a big hill the temp rises quite quickly.......I am not using an electronic water flow controller so basicly once the pump is switched on its running flat out, now with the water whooshing around the system at a fair rate of knots do you think that the water wont be spending enough time in the rad to cool down before being pushed back out towards that hot engine and therefore not getting a chance to cool down ?

if you have any suggestions I would really like to hear them before I waste anymore money

cheers Badger
www.hightrux.co.uk

[singlecoil]

How fast the water is moving really has very little to do with it. The normal enigine driven pump moves water pretty quickly too.

The simple fact is that the heat produced in the engine is not being successfully disposed of in the radiator. Whilst your cooling system is ok, just, when the engine is not under load and the air flow is high, it is not when conditions are adverse.

You need to go back to basics and check everything that relates to your cooling system, and take nothing for granted.

[Mr2Mike]

badger1bear said:

Hi guys, I am running a Craig Davies

There's your problem; Craig Davies is a footballer, terribly unreliable people. Get yourself a Davies Craig water pump instead

Do you have the coolant flowing through the engine in the same direction as with the mechanical pump? If so it sounds like you simply don't have enough radiator area, or at least not enough airflow through the one you currently have.

[jamesG20V6]

Mr2Mike said:

badger1bear said:

Hi guys, I am running a Craig Davies

There is your problem. Possibly. Depending on which pump it is. My car is on it's third in as many years, basically if the pump gets hot the bearings seize.
The new design is apparently better but i'm not holding out much hope. My last one was running intermittently, and took an age to realise.

[Jon Ison]

as a stop gap try some "water wetter" it does work, it wont cure all cooling problems but it defiantly lowers coolant temps.