FE Power Forums
FE Power Forums => FE Technical Forum => Topic started by: fairlanegt427 on June 07, 2015, 09:27:22 AM
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i fired up my comet yesterday with a 428. the radiator cap was off and it was pushing a little water out the radiator a trail all the way out my shop door. i fill water with a lift pump under vacuum to make sure all the air is out. another friend of mine borrowed me the stant pressure tester kit so i started car and no pressure at all on the tester. the only time that guage moved was when i would turn on the electric water pump then the guage would show just very litlle pressure. i am, i think worried about this some what. the car has cometic head gaskets on it and my friend told me that a person should use copper spray on gasket before putting on? i asked cometic that a couple years ago when i assembled and they said to just put on the bare head gasket (no copper spray). so thats what i did. so now i am going to go to local semi parts dealer and buy a test kit for gases in the coolant system. and then base my decision from their. any body have problem like this and or give a guy some advice. i really dont want to pull motor again with out making darn sure first. engine is 428 with alum edelbrock heads.
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Is it a top and bottom tank radiator?
If so, they don't get filled to the top. My technique is to fill the system, fire it, and when I see flow, fill it to almost the top to allow for the thermostat opening and let it circulate with no cap for a bit.
Then run it, let it cool and check level. It may have just been overfull.
I may be missing something, but what you describe doesn't sound like it is a bad head gasket
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i am thinking that it was over full also yesterday. bacause i filled the sytem when car was cold drove it out the shop door and their was a trail behind me. also as we know water expands when it gets warm. i think i probably overfilled the system. but i am still going to get the test kit to check for gases in the coolant to make darn sure.