Quote:
Originally Posted by vstech
83 should have the tank, if it's a turbo motor (euro's are often N/A, even in 83) on mine, there were cracks in the expansion tank that kept it from building pressure. I also have one where the neck of the expansion tank would seep pressure out. none of mine actually overheat though.
if your dash gauge is hitting the red line, then you might have several other problems.
1st, is the engine ground SOLID to the car?
2nd, are you sure the temp gauge/sender is not faulty? IR thermometers are wonderful for this.
3rd... hate to say it, but yeah... german t-stats are the way to go here...
4th ya need to park the car REALLY HIGH nose up, to get these cars properly filled with coolant, and the monovalve can cause the system to hold air as well.
... again, hate to say it, but head gasket is the next logical thing to test...
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I have never let it get more than 2/3 of the way up on the gauge, but I dont feel like I should keep my foot down going up a steep hill when the temp gauge starts rising quickly and I know the cooling system isnt quite right. It never gets above the 80 mark on flat ground though. I dont even know where the engine ground is, but I have no reason to believe the temp gauge is wrong from the way it behaves normally. And I did already order a german thermostat. It would be over $400 to completely rebuild the cooling system with all factory parts, so I don't plan on just replacing everything if some of it is likely still fine.