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MG TD TF 1500 - auxiliary water pump fitted for increased heat

Has anyone fitted a auxiliary water pump to there td/tf for increased heat?Or for that matter any mg and if so who's pump did you use?THANKS. MICHAEL.
Michael O'Halloran

Hello Michael. I've never needed an added water pump. I run the larger cored radiator, six blade water pump and late model fan. I didn't boil over when we pulled into Las Vegas and it was 115 degrees. As I've stated before I've had many people ask about over heating, they've checked the carbs, the timing and every other thing you can think of and asked me to look at their cars, I usually can see what the problem is as we walk up to their car. The slats in front of the radiator are closed too small to allow enough air flow they should be open about 1/4".

Butch
R Taras

Michael, are you talking about getting more heat from a heater? Bud
Bud Krueger

The XPAG engine should not need anything more than the stock water pump. Many people do install a 6-vane impeller for a slight improvement in circulation over stock, but that's all. If the car is overheating in the UK then there's definitely a problem. I've had mine in temperatures approaching 120F (49C) and it wasn't overheating.
Steve Simmons

I’m like Bud, I could not figure out if he meant more heat in the cabin or trying to get more cooling in the business end of the car.

Regards, Tom
tm peterson

Michael,
is your heater supply coming from the right place. The take off needs to come from the thermostat elbow and return to the radiator return branch. Only the head has a fully pumped flow where most of the heat comes from.
I have KL heater and have to sometimes throttle the flow. Mind you with all the drafts, my legs roast and the rest just warms.
Ray TF 2884
Ray Lee

Most older heaters are pretty small, so there will not be much heat transfer. A more modern heater will have a larger core, I suspect, and therefore offer more heat.

But didn't you ask about a heater a year ago, and got good recommendations?

Tom Lange
t lange

For what it's worth some Jaguars circa 2000 models and later used an electric pump to boost flow through the heater core. I find it hard to believe it was really necessary as the heater in my 1990 XJ6 works fine without one.
John Quilter (TD8986)

Extra coolant flow really wouldn't help for heat in the tub.
If you feel the hoses, you'll notice the return is virtually as hot as the inlet. The heater core is hot enough to burn skin, but unfortunately, the small heaters and tiny fans don't provide enough air flow capable of circulating a lot of BTUs.
JIM N

Generally your UK weather should not provoke these problems.

Increasing heat removal, may not cure the problem. You have one of several problems. a) there is a blockage in the block, b) the radiator is defective, or c )poor circulation, like a water pump issue.

What temp does your engine run at idle? Could have a slipping fan belt.

Gord Clark
Rockburn, Qué.



Gord Clark

Jim,
I cheated, I fitted a computer cooling fan to the KL to blow through the core. Two improvements, much better airflow and the ammeter does not even register the current draw. With the original fan motor I could not run main beam, wipers and heater at the same time for any length of time without running out of juice.
I may make a deflector to cure the leg roast.
Ray
Ray Lee

Off-forum I learned that the poster has a 120 hp Peter Edney TF1500 engine. Not sure what sort of plumbing he has for the heater. Bud
Bud Krueger

This thread was discussed between 11/01/2020 and 13/01/2020

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