Quote:
Originally Posted by tjts1
I wouldn't be so sure about that. The radiator and hoses were brand new when I bought the car with receipts. Changing the cap from 140 to 120 resolved the cold pressure issue. The cylinder head still leaks combustion gasses into the cooling system but the lower pressure cap keeps the problem in check. I'm sure some car somewhere has a blocked radiator but your categorical conclusion is not true. Hair line cracks in the OM603's #14 head is a well documented problem.
|
I suppose the system could be pressurized by exhaust gas, but then you would be able to detect in by testing. Whether the system is pressurized by hot gas or hot fluid, pressure should drop when the engine cools. I suppose I could be wrong, it's been known to happen.