Air lock or seized thermostat - water won't flow
25-05-2009, 11:39 AM
#1
Fucked On Race Day!!
Thread Starter
Join Date: Sep 2006
Location: south east
Posts: 149
Likes: 0
Received 0 Likes
on
0 Posts
Air lock or seized thermostat - water won't flow
I thought my thermostat was seized so have replaced it with a brand new 88 degree one. My engine is 450bhp.
The water flows from the header tank, fills the radiator, get as far as the swirl pot but does not pass the thermostat (still) and instead finds its way back to the header tank via the breather pipe from the swirl pot. It is not passing the themostat and passing through the turbo as it should.
The only thing i haven't done is test ts with the header tank cap ON. I was unsure if this would cause too much pressure and cause problems - does thee pressure have to be there for the water to pass the thermosat? I don;t think it has to...any ideas on whats wrong?
cheers
The water flows from the header tank, fills the radiator, get as far as the swirl pot but does not pass the thermostat (still) and instead finds its way back to the header tank via the breather pipe from the swirl pot. It is not passing the themostat and passing through the turbo as it should.
The only thing i haven't done is test ts with the header tank cap ON. I was unsure if this would cause too much pressure and cause problems - does thee pressure have to be there for the water to pass the thermosat? I don;t think it has to...any ideas on whats wrong?
cheers
25-05-2009, 11:48 AM
#2
Regular Contributor
Join Date: Dec 2007
Location: herts
Posts: 307
Likes: 0
Received 0 Likes
on
0 Posts
you may have a duff stat. with the thermostat out of the car pop it into a pan of water and bring to the boil and watch to see if opens, ideally a thermometer would be good to see if it opens at the correct temp.
25-05-2009, 11:53 AM
#3
PassionFord Post Whore!!
iTrader: (1)
Join Date: Jun 2003
Location: Essex
Posts: 5,076
Likes: 0
Received 0 Likes
on
0 Posts
the water wont pass through until the stat's at working/opening temp!
put so much coolant in and run the engine up topping up as heat rises till reached require amount!
put so much coolant in and run the engine up topping up as heat rises till reached require amount!
Thread
Thread Starter
Forum
Replies
Last Post
timsrs
Ford Sierra/Sapphire/RS500 Cosworth
22
24-09-2015 08:14 PM
