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XJ6 Diversion overheating


cliverlong
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Hi.

 

I have an XJ6 Diversion. It is water-cooled, 4 cylinder. Today on the 15 mile commute to work I noticed the digital temperature reading fluctuating wildly. When I was travelling around 20 mph the temperature displayed 90C. When I stopped at lights the temp displayed jumped within 3 seconds to 108C. The maximum reading is normally 103C when stationary and idling. When I stopped the bike then switched on again, but with the engine not running, the gauge displayed a maximum of 112C and the radiator fan was running very fast. Once on the journey a red temperature light flashed for less than a second. Any idea what the problem might be? I am guessing 1) the sensor is giving a wrong reading, insufficient coolant fluid 3) water pump broken.

 

Clive

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I'd check the coolant firat - it may be low.

Might be a knackered stat, which isnt opening when it should [maybe 90ish]. If in doubt replace it.

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As above, change the fluid and the thermostat, why? cos it's a cheap fix.

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