5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

PLEASE HELP!!!

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Old Feb 1, 2005 | 07:27 PM
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jodyv2005
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I HAVE A 93 SUPERCHARGED CONVERTIBLE, ABOUT SIX MONTHS AGO I REPLACED THE WATER PUMP, RADIATOR, AND THERMOSTAT, THEN RECENTLY I BLEW A HEAD GASKET, I TORE THE MOTOR DOWN AND REPLACED THE HEAD GASKET, I WASNT SURE WHAT TO TORGUE DOWN THE ROCKER ARM BOLTS (FLEX BOLTS) SO I HAD MY NEIGHBOR COME OVER WHO IS "A MECHANIC" AND HE TORQUED THEM DOWN, ANYWAYS, ONCE THE CAR WAS PUT BACK TOGETHER I KEEP GETTING OVERHEATING PROBLEMS, I WLL LET MY CAR RUN FOR ABOUT FIVE MINUTES AND IT GETS REALLY HOT REALLY FAST, I HAVE TRIED BURPING THE COOLANT SYSTEM BUT FOR SOME REASON IT KEEPS BUILDING UP PRESSURE IN THE COOLING SYSTEM, I TOOK OUT THE THERMOSTAT AND EVERYTHING SEEMS TO BE CIRCULATING FINE, WHY IS THIS HAPPENING, I NEVER HAD A COOLING PROBLEM UNTIL I REPLACED THE GASKET, COULD IT BE POSSIBLE THAT THE ROCKERS ARE TORQUED TOO MUCH?? OR POSSIBLY AN AIR BUBBLE IN THE MOTOR?? I AM OPEN TO ANY SUGGESTIONS, THE CAR HAS NEVER RUN STRONGER, I JUST DONT GET IT!!
Old Feb 1, 2005 | 07:41 PM
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Default RE: PLEASE HELP!!!

Head gasket installed backwards or upside down?
Old Feb 1, 2005 | 07:42 PM
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jodyv2005
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I MADE SURE ALL THE HOLES WERE CLEAR, HECK, WHO KNOWS, I POSSIBLY MISSED ONE
Old Feb 1, 2005 | 08:25 PM
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are you using adjustable rocker arms or the stock pedestal mount ones??? if they are adjustable ones, they could be too tight and this has an affect on valve timing which can impact the cooling system. also check the engine timing and make sure it isn't too high as this can lead to overheating also.
Old Feb 1, 2005 | 08:33 PM
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they are the rockers that were on the car when i bought it so im not sure if they are stock or not, but i do know that they dont fit on studs, they are about an inch and a half bolt that fits right in the center of the rocker and tightens down, i also see what you are saying about the timing, but would it make it get hot really fast, i mean i can barely drive it and the system builds up with pressure, thx for your reply
Old Feb 1, 2005 | 08:37 PM
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ignition timing advanced too far will definitely make a motor run hot. assuming you had the distributor out when you did the head gaskets, are you sure you got it timed correctly?? try dropping the timing a couple of degrees and see if this helps any.
also, is the motor running lean?? this will make it run hotter also.
Old Feb 1, 2005 | 08:49 PM
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JUST ONE MORE THING TO ADD, IF I RUN MY CAR WITH THE RADIATOR CAP OFF, IN LESS THAN TWO MINUTES IT WILL START POURING OUT OF THE RADIATOR, LIKE AIR PRESSURE IS BUILDING UP, JUST A THOUGHT
Old Feb 1, 2005 | 08:52 PM
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well it's the gaskets!
Old Feb 1, 2005 | 08:53 PM
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yep, something ain't right with the new gaskets that's for sure.
tell me you did not reuse the old original head bolts!!!!
Old Feb 1, 2005 | 08:55 PM
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THX FOR ALL THE HELP GUYS, GUESS ILL BE GETTING MY HANDS DIRTY AGAIN



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