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Speedo not working


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Hi Guys. The speedo in my '71 TR6 has finally given up the ghost.

Prior to stopping working it had become a little 'jerky' and had stopped a couple of times over the last 100 miles or so.

Is there any easy way of determining where the fault is, cable or speedometer itself?

Regards

 

Peter

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Unscrew the cable from the back of the speedo. If the inner cable rotates when the car is moving, the likely fault is the speedo itself.

If not then pull out the inner cable and see if it’s bust. If not work back to angle drive and further to speedo drive gear until you find the defect.

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Also consider the angle drive adaptor on the side of the overdrive. One of the gears inside the angle drive can become loose on its spindle.

I know from experience it gives exactly the symptoms you have described, with the speedo flickering before it fails completely.

Nigel

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Nigel you are rigt had the same simptons, new angle drive the cheap ones replaced after 1k...got a good €€€ one and didn't forget the extra washer on the gb side

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