Temperature problems on a '87 Mini

[bmt216a]

Hello.

I have a standard Mini 1000 and when I take it upto 60/70, the temperature just shoots to 3/4 mark. It dosnt matter if the weather is cool or hot. When its hot I end up putting my heater on and I have also fitted an electric fan on the otherside of the rad ( the fan sucks not blows ) it will then sit at 3/4 hot.

I have checked the water pump by taking the top rad hose of and running the car.

I have also used strong car rad flush and filled with 50% antifreeze.

Also I have changed the sendor unit 3 times ( for second hand ones I know that work)

And last of all am running with the thermostat out.

Any helpers?

Cheers

Ian

[bmt216a]

I found out yesterday about the thermostat and put it back but still seems to heat up to 3/4. Got no over flow. Dosnt seem to be that hot. Is there any other way I can test the tempereture? Could my pump be failing?

I am basically driving to Mongolia in two weeks and starting to worry that this problems isnt sorted

[bmt216a]

I have replaced the hoses and taking spares. Taking a spare new pump and a spare second hand rad. Have fitted a electric fan on the inner wing. I think I will just stick the new water pump on and see what happens.

Do you recon I might have blocked channels in the block/head? as I say I have flushed the lot out with rad flush, and got lots of crap out.