Thread: Fan problem?
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Old 9th March 2021, 10:34   #13
AndrewJames
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Rover 75 Saloon

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Quote:
Originally Posted by T-Cut View Post
Hello Andrew, here's a not too steep bit of the learning curve. To check the actual running temperature, you can switch on the Trip Screen Diagnostic system. This allows you to see the temperature changing in real time in degrees Centigrade. It provides lots of other interesting stuff, but the running temperature is what most people use it for. The How To is here: https://www.the75andztclub.co.uk/for...ad.php?t=55585
Concentrate on section 7 for engine temperature.


You'll probably need to practice the button presses, but you'll quickly get the hang of it. The diesel ought to run aound 85-90C, but for various reasons, few actually do. If you find your 'normal' running temperature is closer to 75C, you should consider fitting the in-line thermostat modification. It's pretty easy to do and has benefits all round. See this How To: https://www.the75andztclub.co.uk/for...d.php?t=100594


Here's a 3-speed radiator fan testing routine posted years ago by Jules. I think it still applies to the original 3-speed system. It may confirm the state of the motor.

https://www.the75andztclub.co.uk/for...ight=jules+fan
You could try fitting new brushes or if that isn't possible, a popular fix is to replace the fan conpletely with a second hand 2-speed system or a third party fan kit (Jules sells one).



Hope this helps.
TC
Thanks for the post, T-Cut. Very informative! I was planning on looking into the trip screen thing later on so thank you for providing the link with info. All I need now is an excuse to go out tonight. I suspect food shopping will raise less eyebrows with the wife than me telling her I'm going out to tinker with the Rover yet again

I began reading that guide from Jules late last night but my brain was too fried to take it in properly. I plan on reading it properly soon.
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