Technical heaters not working

[mattb25]

Yeah I'll check it all after as I've got to go out now I'll empty all the coolant then take the thermostat out as I say the top of the 2 pipes coming out of the thermostat and water pump are then they are cold 1 half way down the other a quarter as they go in to the radiator well thanks guys for all the help it's much appreciated and I'll try everything and keep you updated later on after tea thanks ))

 

[fingers99]

No need to drain the coolant before you fit the thermostat -- you'll loose some, but not a great deal. I'd fit it, top up, bleed, and see where we're up to.

 

[mattb25]

hi all just an update i drained all my coolant out it was rusty colour again and also some black bits anyway ive took the thermostat off and im 99.9% sure thats the problem as it seem like it was jammed shut and covered in that rusty colour stuff it had a layer round the edges in and everthing i boiled the kettle and poured that through and it didnt open so im guessing thats the problem???

 

[David C]

Did you fully drain the coolant before?

Just pouring boiling water through it in the open won't open it.

 

[blu73]

sounds like it, but submerge the whole thing in water in a pan and bring to the boil to check properly.

 

[mattb25]

yeah this is the 3rd time im drained the coolant out not put new in yet till i get a new thermostat or tried it at least in the pan but the times ive drained the coolant ive put new in

 

[fingers99]

You might try some rad flush in there -- only about 4 quid a bottle. Then, run a hosepipe through the block. in as many directions as you can come up with.

 

[blu73]

:yeahthat:

 

[David C]

hi all just an update i drained all my coolant out it was rusty colour again and also some black bits...

yeah this is the 3rd time im drained the coolant ... but the times ive drained the coolant ive put new in

What colour coolant have you been using?

 

[mattb25]

the blue anti-freeze/coolant the 50/50 mix and do i put the rad liquid in the expersion tank and let it run round??? dont know how to do that never had to do it before lol

 

[David C]

the blue anti-freeze/coolant the 50/50 mix and do i put the rad liquid in the expersion tank and let it run round??? dont know how to do that never had to do it before lol

You fill the system through the expansion tank.

What did you do the other two times you refilled it?

 

[mattb25]

filled it up from the expansion tank..

 

[mattb25]

is that blue anti-freeze/coolant thats a 50/50 mix alright??

 

[blu73]

might be, might not. read the label

 

[mattb25]

ok will do next time

 

[blu73]

some stuff comes ready mixed, some doesn't. It will say on the bottle though

 

[fingers99]

Unless it's very old stock (I mean, very onl;d) should be fine. Will probably have something like "safe for aluminium engines" on it.

Which rad stuff you talking of?

 

[mattb25]

i was on about anti-freeze/coolant never used the radiator stuff but will get some and on the thermostat when i put it in the pan to boil do i have to take the nut out with the electric pin thing off it?? i mean to connect the wires the connector bit?

 

[David C]

...when i put it in the pan to boil do i have to take the nut out with the electric pin thing off it?? i mean to connect the wires the connector bit?

That is the temperature sensor for the ECU.
It may be ok, but I'd remove it.

 

[mattb25]

thats what i ment just didnt know it would be safe or work without it on cheers