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Karl Martin TryHard ACT 95 TT manual and a 91 TT auto
Posts: 114 Reg: 01-2007
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Monday, November 16, 2009 - 09:53 pm, by: Karl Martin(Karl)
Hey guys just looking for some advice from some with more experience than me.
About two weeks ago my car overheated (first time since I bought it over a year ago) and cracked the radiator top tank, got the tank replaced system flushed etc. Since then it's starting to overheat regularly, so obviously the top tank wasn't the problem but seems to have been a side affect of the underlying cause.
It doesn't appear to have any leaks in the system and I've caught it each time it's run hot before it's lost any water so the system definitely has enough water.
As far as I can see that leaves only the water pump, is there any way to check or confirm this before I spend $350 and 15+ hours?
Coincidentally the electric thermo fan that comes on at high temperature also hasn't worked since I got the radiator fixed. This obviously isn't helping but I've driven the car as gently as can be driven on a cool night and still overheated. Seeing as the thermo fan wouldn't normally turn on in these conditions I don't think that is the cause but obviously I'll be fixing that.
The car made 300rwkw at last dyno and so has a pretty massive intercooler blocking the radiator, is it likely the cooling system can't handle it or is the water pump more likely the culprit? I've definitely seen soarers on more power with stock cooling. Also are there any relatively cheap improvements to be made to the cooling system?
