Vehicle & Technical > Series Land Rovers

speedo showing speeds not possible in a Landy

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muddyjames:
I have now replaced the speedo cable twice due to it snapping twice. The first time I replaced it, it bounced around showing wierd speeds then I gave it a clean and it was beautiful. It didn't bounce and showed the speed I was doing then 10 miles later the cable broke. After replacing it again it is bouncing around again. When I am in 2nd gear on tick over the speedo shows my speed from 20mph up 90mph and just bounces between these 2 speeds. I have put a drill on the back of the speedo and it doesn't bounce then. Any ideas on how I can get a more accurate reading?

hobbit:
Actually I've got in the habit of using the gps to clock the speed its more accurate than the one in the car

muddyjames:
Thanks Kev.
After I have paid out for road tax and an Mot for my other car I am hoping to do over time at work until it comes out of my ears and save up for a GPS, but at the moment I am going to have to stick with guessing the speed.

muddyweb:
Could well be a problem with the worm drive in the output of the transfer box.

They are only on a friction drive so if they get covered in oil then it can become erratic.

Wouldn't explain the cable snapping, that is more likely to be a sticking speedo.   It might be that the speedo is faulty, and causing the worm drive to slip..   put a drill on it and you "overpower" the speedo so it looks OK.

Might be worth trying a different speedo.

muddyjames:
I do reguarly take the speedo cable out and clean the gear box end as it does continually get covered in oil. if it is something i the gear box i bet it is not cheap to sort out

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