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Car Forum / Australian Car Forums / General Car Topics (Australian group) / October 2006head gasket
head gaskets: do they blow instantly or is there any signs that might indicate it's about to happen. > head gaskets: do they blow instantly or is there any signs that might > indicate it's about to happen. Symptoms can range from *overheating. *coolant in the oil. *a lot of white smoke coming out of the exhaust pipe. *loss of compression in one or more cylinders. Also check around the engine for any coolant leakage. Two tests that can be performed. One is pressure test the cooling system. You'll be able to pin point the location of the leak. The other is a test that detects exhaust in the coolant by a mechanic.  SignatureRegards Dan (snip) >Two tests that can be performed. One is pressure test the cooling system. >You'll be able to pin point the location of the leak. If the test shows pressure dropping but no visible leak, remove the spark plugs and continue the test. You'll either eventually find the leak (external) or the water is going into a cylinder, which in the fullness of time you'll also notice. Nothing worse than missing that and then trying to start the motor. Had one once that was so bad the water actually filled the cylinder and came out the plug hole. > head gaskets: do they blow instantly or is there any signs that might > indicate it's about to happen. Had to replace a head gasket recently. The only sign that there was something wrong was that the car kept loosing coolant. After taking it to numerous mechanics, got the radiator replaced, heater tap, a few pipes, the last guy eventually found the problem by checking for exhaust gasses in the coolant. The car was loosing water for around 6000k's. Only during the last few hundred K's before I had the gasket replaced did I notice unusual amounts of steam coming out the exhaust pipe. > head gaskets: do they blow instantly or is there any signs that might > indicate it's about to happen. A symptom can be froth in the oil. |
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