Technical help Q & A Got A technical problem with you car? Keep it in here where the techies hang out and we will try to solve it for you!!

cosworth running hot then boiling over

Thread Tools
 
Search this Thread
 
Old 15-06-2013, 07:15 PM
  #1  
tonyRS
I'm Finding My Feet Here Now
Thread Starter
 
tonyRS's Avatar
 
Join Date: Jan 2009
Location: gateshead
Posts: 141
Likes: 0
Received 0 Likes on 0 Posts
Default cosworth running hot then boiling over

Iv recently fitted a 500 cooler, alloy rad new twin fans and the rewire kit with uprated switch, it was running hot after all this so i then fiitted a msd thermostat, the fans come in and run fine but it just gets hot and boils over. its doing my fucking head in this car now. any advise people?
Old 15-06-2013, 07:26 PM
  #2  
st220kyle
Advanced PassionFord User
 
st220kyle's Avatar
 
Join Date: Aug 2010
Location: somerset
Posts: 1,817
Received 61 Likes on 56 Posts
Default

air lock in the pipework? is the coolant even being circulated?
Old 15-06-2013, 07:45 PM
  #3  
tonyRS
I'm Finding My Feet Here Now
Thread Starter
 
tonyRS's Avatar
 
Join Date: Jan 2009
Location: gateshead
Posts: 141
Likes: 0
Received 0 Likes on 0 Posts
Default

not sure as when it boiled over i went to pull the bonnet and the cable has came off at latch! that pissed me off more than anything else! i think i blead the system with the bleed screw on the housing correctly, il check once bonnets open.
Old 15-06-2013, 08:51 PM
  #4  
RSBryden
Too many posts.. I need a life!!
 
RSBryden's Avatar
 
Join Date: Mar 2013
Location: Essex (pitsea)
Posts: 719
Received 11 Likes on 10 Posts
Default

Sounds simple mate but r the fans spinning the right way ! I had twin fan cooler fitted and the fans were wired right! It over heated n boiled over! Required them n sorted it!
Old 15-06-2013, 08:53 PM
  #5  
RSBryden
Too many posts.. I need a life!!
 
RSBryden's Avatar
 
Join Date: Mar 2013
Location: Essex (pitsea)
Posts: 719
Received 11 Likes on 10 Posts
Default

Sorry these wasn't wired right first time! They was spinning wrong way forcing air out rather than in
Old 15-06-2013, 09:04 PM
  #6  
doga-ot
PassionFord Post Troll
iTrader: (1)
 
doga-ot's Avatar
 
Join Date: Jul 2008
Location: East london
Posts: 3,314
Received 47 Likes on 46 Posts
Default

As above are the fans spinning the right way, also is thermostat opening closing correctly and final thing if you have an airlock remove lid on water tank, run engine so it reaches temp and have heaters on full blast and set to hot and use bleed screw on thermostat housing!
Old 16-06-2013, 01:11 AM
  #7  
L1AM_RS
Regular Contributor
 
L1AM_RS's Avatar
 
Join Date: May 2013
Location: Nottinghamshire
Posts: 302
Received 4 Likes on 4 Posts
Default

I'm having the exact same issue right now. Engine gets upto temperature but then shits coolant everywhere out the header tank.
Old 16-06-2013, 12:17 PM
  #8  
Alvyn
PassionFord Post Whore!!
iTrader: (1)
 
Alvyn's Avatar
 
Join Date: Jun 2003
Location: Essex
Posts: 5,076
Likes: 0
Received 0 Likes on 0 Posts
Default

same as above regarding the way the fans should be spinning but also do you have the state fitted the right way round? failing that must be an air lock. was it fine prior to all that's been changed?

Last edited by Alvyn; 16-06-2013 at 12:19 PM.
Old 16-06-2013, 12:41 PM
  #9  
doga-ot
PassionFord Post Troll
iTrader: (1)
 
doga-ot's Avatar
 
Join Date: Jul 2008
Location: East london
Posts: 3,314
Received 47 Likes on 46 Posts
Default

its definitely an air lock as L1AM RS has same issue and he has also just fitted an rs500 rad, do as I stated above
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
kosienutter
General Car Related Discussion.
31
22-08-2015 09:55 AM
Focosmitch
Ford RS Cosworth Parts for Sale
2
14-08-2015 07:29 AM
dojj
General Car Related Discussion.
4
12-08-2015 08:52 PM
fish6634
Ford KA
0
02-08-2015 01:02 PM



Quick Reply: cosworth running hot then boiling over



All times are GMT. The time now is 10:45 PM.