custom engine over heat!
Thread Starter
Burning Brakes
Joined: Apr 2005
Posts: 1,110
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From: JUPITER FLORIDA
custom engine over heat!
I have a custom engine built for my 86' and it just over heated on me. i checked the fluid and the thermostat and they where full and in good condition. The water pump is brand new also. what could be the problem?
Please some one repsond i need to get it running! thanks for your help
Please some one repsond i need to get it running! thanks for your help
Team Owner
Joined: Sep 2001
Posts: 62,164
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Describe the circumstances when it occured and the temps.
Did the fans come on at all and at what temperature?
Did the fans come on at all and at what temperature?
Thread Starter
Burning Brakes
Joined: Apr 2005
Posts: 1,110
Likes: 0
From: JUPITER FLORIDA
over heat
i started driving the car and the tempature looked fine. as i was driving i looked and the tempature was extremely high in less than 5 minutes of driving. bringing the car up to speed did not make the temp go down. the tempature reached 280 degrees! i pulled over and popped the hood....the radiator was not hot, nor was any smoke or steam comming out of anywhere. everything looked fine. i figured it was a censor reading wrong. i only drove a couple more miles and got home. my radiator started leaking badly once i stopped(there where no leaks prior to driving).(i obviously made a mistake driving it 2 more miles). The engine ran perfect the whole time. i dont know if the fans came on.
Team Owner
Joined: Aug 2000
Posts: 40,156
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From: San Pedro CA
that is interesting.
remove the cap, start the engine and watch the coolant. My first fear is a bad tstat or a blown head gasket. Any coolant out the back?
I would also replace the temp sensor on the drivers side cylinder head. Between #1 and #3...
personally, I would return the car to the engine builder.
remove the cap, start the engine and watch the coolant. My first fear is a bad tstat or a blown head gasket. Any coolant out the back?
I would also replace the temp sensor on the drivers side cylinder head. Between #1 and #3...
personally, I would return the car to the engine builder.
Thread Starter
Burning Brakes
Joined: Apr 2005
Posts: 1,110
Likes: 0
From: JUPITER FLORIDA
i will look at the temp censor on the head but as far as looking in the rad-cap. there is a hole in the radiator from it over heating so big it just flows out as fast as i pour it in. the only place i see coolant dripping out is at the radiator...no leaks on the engine what so ever thank god. im calling the engine builder tommorow to have him come get the car.
