4 replies to this topic

[_mini1000_]

Hi guys

I've got a mini with an 88deg thermostat fitted which when left ideling for 15mins or so will creep very close to the "H" on the temp gauge.
The ignition timing is set to 10deg btdc and the fueling seems to be spot on.
The rad cap is a 13lbs one and the heater matrix has just been replaced as the old one was rotten.
The radiator is the standard radiator which has been flushed when out of the car.
The heater control valve has also been replaced as the old one was leaking.

The heater itself blows cold air no matter how hot the engine gets with the valve open. The pipes going into/out of the matrix remain cold/lukewarm but never get hot.

Im all out of ideas so any help would be appreciated to get the engine temp down and the heater blowing hot air.

[craigr91]

im no genius or know much at all bout cars but the heater, possible blockage in the pipes?

and my car used to over heat constantly, it turned out to be the previous owner put the fan on the wrong way round..... was told its a rookie mistake?

hope it helps :)

[Carlos W]

It could be an air lock or some other blockage!

[bmcecosse]

Check the heater valve is actually opening properly. And flush the heater through. Also check there are no kinks in the hoses....

[Yoda]

first thing is to check that the fan is correctly installed and then I would flush the whole system in two directions via one of the heater pipes, and then if no luck more investigation is needed. Flushing the system in this way should move any crud out and also eliminate any air pockets. If no luck doing this, the first thing i would check is the pump as it sound like the water is not moving round the system. Is the actual radiator getting hot?