Cooling problem

[itavaltalainen]

what rotor is it plastic or metal?

the plastic ones can come loose from the shaft, the pump still pumps a small amount round but only very little as rotor starts slipping more and more. hold the rotor and try to rotate the pulley. you shouldn't be albe to turn very far before your finger gets squeezed and then it should not slip. of course this is only a crude test.... but if you're putting too much force the blade will crack and braek off.

test the thermostat by boiling in kettle, if its not that i would go and get a new water pump.... they're only 25£ from gsf (thats their cheaper option but it had a metal rotor last time i bought one).

[madsb]

tested the tstat, it was fine, gonna test the wpump as you prescribe when i get home

[madsb]

what rotor is it plastic or metal?

the plastic ones can come loose from the shaft, the pump still pumps a small amount round but only very little as rotor starts slipping more and more. hold the rotor and try to rotate the pulley. you shouldn't be albe to turn very far before your finger gets squeezed and then it should not slip. of course this is only a crude test.... but if you're putting too much force the blade will crack and braek off.

test the thermostat by boiling in kettle, if its not that i would go and get a new water pump.... they're only 25£ from gsf (thats their cheaper option but it had a metal rotor last time i bought one).

Rotor is metal, and it doesn't slip when i try to make it... Will refit everything now and have another go at filling it up and not getting air trapped, assuming that is the problem.

[itavaltalainen]

and make sure the belt goes the right way round the pulley.... on 1.8/2.0 you can put it the wrong way - which gives you issues....
should be driven by the ribbed side of belt, not the flat one.

[madsb]

and make sure the belt goes the right way round the pulley.... on 1.8/2.0 you can put it the wrong way - which gives you issues....
should be driven by the ribbed side of belt, not the flat one.

of course hehe anyway, put everything together and going to fill it up again tomorrow to see if I can get it to work.

[xionsolaris]

Just run the engine on idle till it heats up reving that engine will spin the water pump faster making more bubbles in the coolant system let it just tick over till the thermostat is flowing and keep hot air low speed and then turn the heater fan speed up and then rev it up my prefered method it works on all cars as some cars can air lock if u rev it up my fav tool was the valeo vacum coolant system fill up tool works of a air line well handy

[madsb]

okay some progress achieved I guess..
followed the following steps:

deattached lower radiator hose and took off coolant cap.
turned on the ignition.
filled in water until it started flowing out of bottom radiator hose (probably could have made it flow more)
turned on the engine with the coolant cap off and the level around max. also revved it occasionally.

So the progress now is that the bottom rad hose gets warm when tstat opens, which means theres less of an air problem there now...

bummer however is that the fans still won't put out hot air!! even when at 90 degrees..

How come? and what can I do to correct this? massaged the hoses while it was running. Also water pump is fine, could clearly see a reaction in coolant level when revving.

[itavaltalainen]

why would you expect the fans to kick in at 90 already?

they come on much much later than that - 105 iirc

[tweed]

why would you expect the fans to kick in at 90 already?

they come on much much later than that - 105 iirc

Read again dude!

He's talking about in car heater.

As I said at the start sounds like your heater matrix is blocked.

I would test this by disconnecting the two hoses and pressure flush it. Put a hose on the exit hose and try and flush it out or just see how well the water runs through the matrix.
If its fine then maybe the internal flap in the unit is broke.

[madsb]

why would you expect the fans to kick in at 90 already?

they come on much much later than that - 105 iirc

Read again dude!

He's talking about in car heater.

As I said at the start sounds like your heater matrix is blocked.

I would test this by disconnecting the two hoses and pressure flush it. Put a hose on the exit hose and try and flush it out or just see how well the water runs through the matrix.
If its fine then maybe the internal flap in the unit is broke.

Nothing should be broken - heat worked fine before. Which hoses exactly? And where is the heater matrix and what does it look like? Noob in learning here :p