Club 80-90 Forums

Forgive my ignorance but I cant find where the thermostat is on my 1982 1.6 CS diesel. Is it under the housing at the top of the block or is it the housing where the hose goes into the water pump ?


On going cooling worries for me and I need some advice please......


I popped a hose - in engine bay where it meets the plastic front to back pipe twice in last 2 weeks and want to eliminate the stat as the cause of overpressuring.

But whist having a look today...... with the bleed screw on top of the rad out and "pumping" both rubber pipes in the engine bay my assistant couldnt feel any air pressure at the bleed valve.......


Although both to and from pipes get toasty (very!) hot at the engine bay end of things they remain cold at the in and out pipes at the radiator end ?

It gets pressure when up to temp and I have bled it as best I can and to check theres water in there have had it flowing out of the bleed valve with engine revving.... and even removed the fan sensor switch to ensure water was in fact in the rad


Guessing the radiator matrix is blocked and needs a reverse flush with the garden hose

IOne final question...... what direction is the flow .... ie - the "top" pipe that goes into the cylinder head is that the supply from or to the radiator ?


Feel a bit of a numpty asking these basics but cant find the answers despite looking


Thanks in advance of any replies


All the best


Matt - brighton

Hi

Found it ! ... in the water pump - have removed the stat which looked clen enough - no crud in the system and flushed the system both ways and now the rad is getting warm and giving the impression that water is now flowing around the system.

Will run it on plain water and no stat for a few days to see how things go _ if no more popped hoses and system seems to be circulating will get a new stat and refulll with anti freeze mixture.

Regards

matt

Having been running around in the van today after removing the thermostat

the system seems to be pumping water around - the rad matrix is getting warm - but predictably - without the thermostat in situ it isnt getting very hot or anywhere near normal operating temperature. Heater is luke warm at best

I put the old thermostat in a saucepan of water and when it started boiling the stat opened.... but I will replace it with a new one just to be on the safe side when I refill with anti freeze ....

Regards


Matt - Brighton