Hi all
I'm having some issues with the new Pinto turbo build (http://www.turbosport.co.uk/showthread.php?t=1142387).
The water temperature is unstable, when the car stationary it will creep up over 100 degrees C (saw 106 today), and when driving it cools off, down to around 80 degrees or less.
I had the same issues when I first started it, using a QH 82 degree thermostat so I swapped in the used 92 degree Ford thermostat I used in the old engine. Same issues.
The only differences in the cooling system from the old engine are;
- engine management coolant temperature moved to the intake flange (used to be in the hose)
- turbo water cooling connected (between the thermostat elbow small takeoff and top of radiator)
- radiator and heater matrix flushed out
The engine itself has higher compression ratio, and I now use Victor Reinz Pinto head gasket, the old engine had a YB head gasket.
The old engine was stable in the coolant temps, it would idle happily without overheating and would drive without overcooling.
The easy test is another, new thermostat. Any recommendations for best brands? I have always used generic ones before...
I can also try plugging the turbo coolant flow, I have made a test with just clipping the hose tight but could not check if it really sealed.
Thankful for any ideas!
Gustaf
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