Coolant leaking out. Help.
09-18-2009, 02:27 PM
#16
Race Car
Thread Starter
Sorry. the temp during a 20 minute DE run appeared to be normal.
09-18-2009, 11:49 PM
#17
Nordschleife Master
Whatever you smelled could have been residual leakage. Everytime I drain coolant i flush the entire area where coolant came in contact with using the garden hose. usually saves me some false alarms.
09-19-2009, 09:35 AM
#18
Race Car
Thread Starter
What shiners is getting at is the turbo water pump runs after you shut the car off and will give the impression of bubbling coolant in the expansion tank. You can hear it running. If it shuts off and your coolant stops bubbling it's normal. It runs anywhere from few seconds to a minute or more depending how hot the coolant is coming out of the turbo waterjacket.
Whatever you smelled could have been residual leakage. Everytime I drain coolant i flush the entire area where coolant came in contact with using the garden hose. usually saves me some false alarms.
Whatever you smelled could have been residual leakage. Everytime I drain coolant i flush the entire area where coolant came in contact with using the garden hose. usually saves me some false alarms.
09-19-2009, 11:58 AM
#19
Rennlist Member
Listen to the banana -- a pressure tester is easy to use and will locate that leak in very short order. Sears stocks a couple versions, including this one:
http://www.sears.com/shc/s/p_10153_1...ressure+tester
http://www.sears.com/shc/s/p_10153_1...ressure+tester
09-19-2009, 05:36 PM
#20
Track Day
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Make sure that you cool down on the cool down lap. Then roll thru the paddock and let everything come down in temp. Even though the temp gauge looks good on track, everything is getting pretty hot and if you just go from WOT to turning it off, it can't take it. Make sure you cool it down before shutting it off.
09-20-2009, 02:08 AM
#21
Race Car
Thread Starter
Pressurized the system and there was coolnt leading out onth ehead belw the manifold near the base of the oil fill tube. It was leaking once before from the coolant line tha goes into the head but I tightenend that up. The coolant is collecting inthe same place though.
09-21-2009, 01:37 AM
#22
Race Car
Thread Starter
Took the manifold off today and found the leak. It is leaking from the water hose flange at the back of the cylinder head. Looks like I just have to replace that gasket...
09-21-2009, 01:42 AM
#23
Rennlist Member
If by chance you've removed the cycling valve bracket, make sure you use shorter bolts on that flange. The stock bolts bottom out in the holes without the bracket, and can cause that leak.
09-21-2009, 01:55 AM
#24
Race Car
Thread Starter
If the cycling valve is that little cylindrical thing sitting on the bracket I did remove the bracket. Do i need shorter bolts if I am installing the bracket again? Sorter bolts would be great as I am expecting it to be a PIA to get back on.
09-21-2009, 02:18 AM
#25
Rennlist Member
Right, that's the thing. It's probably leaking because the bolts bottomed out without the bracket, leaving the flange looser than it needs to be. If you put the bracket back, stock bolts are fine. Without the bracket, use bolts a 5mm or so shorter.
09-21-2009, 03:32 PM
#26
Race Car
Thread Starter
It was leaking with the bracket on.. After I tightened the bolts it seemed to leak worse.
