The 'E' Type Forum

I think i need a new speedo angle drive, the cable is not rotating at the speedo end. I have read other threads, it looks like its a pain to get to and change. But my question is do i need to be concerned about the repacement part from a UK supplier? My car is series 1.5 USA import so diff is a 3.54 ratio, will the speedo read correctly as UK cars are 3.07.

David : this may not be the angle drive, but can be the result of a broken cable or one where the squared off end has become rounded. What you need to do is to take off the angle drive and examine it on the bench . If you rotate the gearbox end and the speedo end of the angle drive rotates, then the fault lies either in the cable ( common ) or in the drive dog ( plastic at one end and about 5cms long ) which is uncommon. I have a feeling that the angle drive for any axle ratio is the same with - IIRC - an 11 output/14 input ratio, and that the drive dog is also the same , and it is the speedometer which has different specifications . The angle drive part number is C25547 and the drive dog ( known more correctly as the speedo driven gear ) is C21310 . Sometimes it is possible to prize the cover off the angle drive and repair a fault in the gear

Thanks for the advice. Its seem obvious now about the different speedo take account of the different ratios, i should have known that was the answer. Hopefully i will find i need a new cable and that will solve my problem.

As regards angle drives, I bookmarked this article some years back:-

https://forums.jag-lovers.com/t/speedom ... air/362037