Question about 1990 Mazda MX-5

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Was using my car on a track day first time went great all morning no worries then suddenly over heated let it cool check levels let it tick over for ages and temp was normal went back on track done 6 or so laps then heated up again slowed down to make way to the exit and it dropped backed down to normal temp done a few steady laps no probs pushed harder again and after 4 or so laps heats up and it keept doing that for rest of day no obvious signs of head gasket trouble and radiator seems clear any ideas

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Hi.I wonder if the rad fan is cutting in when it should? without the fan working and the load the engine is under it would get to hot.
Also it would only take a small head gasket leak to create the same problem due to the load on the engine.If you know somebody with the head gasket checker you could eliminate that.
I hope this will be of some help to you All the best
John (S.Wales)

Posted on Apr 04, 2011

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