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Bleeding coolant system help!

Posted: Thu May 20, 2010 10:37 am
by Catalyst
Ive changed all of my belts, water pump and thermostat. Im just refilling the coolant now, problem is that im thinking the coolant should come out of the bleed valve when you fill with coolant.

There is none running out of mine. Ive turned over the engine and the radiator pipes dont seem to be getting very hot, and theres no coolant coming out of the bleed valve?

Wheres the pressure gone?

cheers

Re: Bleeding coolant system help!

Posted: Thu May 20, 2010 10:43 am
by sihooker
Have a look at these to see if you've missed anything out....

M20... http://www.e30zone.net/e30zonewiki/inde ... _Servicing


M40... http://www.e30zone.net/e30zonewiki/inde ... _Servicing

Re: Bleeding coolant system help!

Posted: Thu May 20, 2010 12:08 pm
by Catalyst
Well fluid is coming out of the bleed valve now, there seems to be a lot of air as well... Heaters are cold...

Im going to let the car cool down then start again

Re: Bleeding coolant system help!

Posted: Thu May 20, 2010 3:42 pm
by Brianmoooore
Take the top heater hose off at the bulkhead, and put it back on when coolant flows from both sides.

Re: Bleeding coolant system help!

Posted: Thu May 20, 2010 3:45 pm
by Alex
if its an m20 fill the system up start the car and let it run with heater on the red so water flows around heater matrix, then open the bleed nipple on thermostat housing, till water start spluttering out, then close, keep the engine running till its upto temp and keep doing this till when you unscrew the bleed nipple only water comes out and no bubbly air :)