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1980 ZX Overheat

407 Views 4 Replies 5 Participants Last post by  Caezar75, 
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I have recently noticed my 80ZX having an overheat problem, first indications of this problem was the temperature started creeping to between half way and 270f during stop and go traffic. Lately I've notice a knock, (like low octane gas) noise when I get down on the accelerator, and just yesterday the temp shot up to 270f in stop and go traffic. It does go lower when air starts getting through it at speed. Looking for places to start trouble shooting myself before I spend big bucks taking it in!! Anyone got any easy fixes????
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What I did was change the whole cooling system.
Good chance to give it a rebirth.
When the system becomes rustish little rustlings can clog up something new you just replaced to find this problem. I would flush the system with the old parts still on and then replace it all.

Madeline
Hollywood, FL
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