Date: 10 Jul 1999 15:38:18 GMT From: gfjohn0751nopsamcomnospam (George F. Johnson) Subject: Re: Boil over problem - an update
Thanks to everyone who is trying to help. Here is an update on the problem. I have eliminated the thermostat as a cause. I have said that the boil over only occurs after shuting off the engine. It occurs to me however that it may be boiling over while driving and I havn't noticed because the gauge is always reading normal (in highway driving, the gauge is below the midpoint, sometimes moving above midpoint in traffic, but never getting into the red zone). Yesterday I performed a compression test and got 135-140 psi on cyc. 1 & 2 and 125 psi on 3 & 4. I used one of the old press in type gauges so the reading may be a bit lower than actual. Seems like a blown head gasket would give a lower reading. What do you think? I am in the process of flushing the cooling system with a cleaner that should remain in for several days so I won't know the results for a while. As an aside, I recently did a minor tune up and replaced the plugs. I used Bosch platinum plugs and after installing them, I noticed that they were resistor plugs and Saab calls for non resistors in my car. I called the parts store that sold me the plugs and they said the type of plugs I got only came in resistor and they would work fine. Seems to run OK, what do you think? Thanks again for all the help George F. Johnson
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