Faulty Speedo ?

[Dazza the Stag]

AT last .......my rebuild is complete and the family were able to enjoy a fantastic day at the National Day.

My question is that my speedo quivers or shakes constantly, more at some speeds than others. I have searched the forum and cannot see that this has been discussed previously, so either its a general fault with cars of that age that everyone accepts or I have an unique problem.

Any comments or suggestions, as Im not sure the speed camera's will make any allowances for the fact i was going somewhere between 30 and 40 !



Darren

[Snakey]

imported post

Normally not too serious, just the cable needs lubricating.

3 in 1 oil that sort of thing works, If not new cable required.

Sssssssss

[Dazza the Stag]

imported post

Thanks Sssssssssss

So, if I try to lubricate the cable, is this along its whole length , or just a particular bit ?

And how do I get at it, by taking the speedo out ?

Reply as if to a 4 year old and I will probably understand !!

Thanks

[Snakey]

imported post

Hi Mate,

Remove the speedo and you will see where the cable attaches by a knurled cap, remove cable (unscrew and withdraw inner cable from drive in speedo)

Then drip feed the 3 in 1 oil down into the speedo cable (bit of a long job) exactly how much will be required is any ones guess but keep going untill uou get bored

Ss

[stustag]

imported post

As stated lubricate the cable either with oil or grease (remove the cable) also check the cable is routed correctly as you say you have done a rebuild it might be routed wrong.

Stuart

[norstag]

imported post

You should be careful oiling the speedo cable as it can get into the speedo,my speedo varied by about 10mph and I tried rerouting and oiling it, but I eventually had it serviced at speedy cables, and it is now perfect.

It's probobly worth trying a new cable as they can develop a thread which the cable can snag causing it to jump when when it clears it self

Alan

[mad cyclist]

imported post

just put in a new cable ,more often as not the outer plastic caseing will be knacked or missing in places.:X

[jordo]

imported post

My speedo was doing the same and snapped after around 200 miles.

[Paul Goldsmith]

imported post

We've got similar speedo fluctuations and on occassion it gets stuck at 30mph a lower speeds -how tricky a job is the cable to replace on a BW35 gearbox ?