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Driving for my MOT, I realise the clutch is slipping badly. (only the first time it's been driven). It looks like the engine/gearbox will need to come out to replace/free the clutch.

The questions is while out.... because I don't want to do it too often. what else should I do as a matter of course.

A compression test shows them all fairly similair with one cylinder a bit high.
Oil pressure is consistent, but don't know what it should be?

Also, I just can't get the Temperature guage to read. Shorting the sensor wire to earth sees the needle move to hot. The sensors resistance reduces as the engine heats up. Replacing the sensor/meter wire makes no difference. The regulated voltage is solid at 10 volts. Is there a common fault with the meter reading the current, or the sensor's resistance beint too high?

Any help appreciated.

Regards
Keith

Hello Keith,

shorting the sensor lead tests everything apart from the sensor so that's where the problem lies. Could it have a high resistance to earth due to sealant or such like? Simply short the sensor cable to the sensor body and see what that gives, if it's still full hot the sensor needs replacing.

Alec

Hi
If you have the engine out for clutch replacement I would suggest prop shaft UJ's and clutch slave cyl replacement

Regards
Pat

Hi,

What condition is the flywheel in? They often score. We usually send the flywheel off to the machine shop to be refaced. Costs about £50, and will ensure no clutch judder when the new clutch goes in

Cheers,
Keith