Speedo Bounce

[937carrera]

I'm not convinced a speedo cable needs lube.

spellchecker misbehaving ??

if that's what you were saying I agree, it shouldn't be necessary at all, though I can see how it could alleviate initial symptoms

[itchyfeet]

this is the sleeve I think may be causing problems.
only one way to find out

20180612_162035 by Paul_Barr, on Flickr

I chopped it

20180612_162306 by Paul_Barr, on Flickr

refitted with out it but its held so I can fit it easily, looks to be a much nicer curve and no strain on the speedo as OEM were.

might take a week to find out no plans to drive it just at the moment.

20180612_162826 by Paul_Barr, on Flickr

[crazyhorse]

This is happening on mine, would be great to know if the snip works

[itchyfeet]

its just occured to me maybe that tube was never meant to be in that position?
who else has it fitted there?

[crazyhorse]

Thats a good and valid point Mine is in the same position, will cut in the morning and report back after i have driven to work in it. Hopefully at 40 rather than a bouncing 40

[crazyhorse]

Cut the plastic this morning. Its much better. Under 30 it still bounces a bit but i can live with it. At 40 before cut needle was nuts, now apart from a wobble of a few mm its pretty good. Will slap some grease into the end and see if that does anything

[itchyfeet]

Cut the plastic this morning. Its much better. Under 30 it still bounces a bit but i can live with it. At 40 before cut needle was nuts, now apart from a wobble of a few mm its pretty good. Will slap some grease into the end and see if that does anything

excellent thanks for contributing to the experiment
did you just cut it in half or remove it from the connector?

[crazyhorse]

No probs, cut in half with wire cutters, totally the wrong way but did the job. Like i said better over 40 but still bounces under 30

[Sir Brixalot]

Mine does the same. Use the Satnav. Have to remember that the speed reading freezes entering a tunnel so it's easy to forget and unwittingly go over the limit. I was going to buy a new cable. Think I'll leave it now.

[itchyfeet]

No probs, cut in half with wire cutters, totally the wrong way but did the job. Like i said better over 40 but still bounces under 30

try removing it fron the connector as in my pic above?
i secured it with a cable tie so I could put it back easily.

[crazyhorse]

Put some grease in the connector at speedo end this morning, better, but still bounces under 30, over 30 it stops bouncing and becomes pretty steady. Will live with that.

[itchyfeet]

my 400 mile journy home was better at speed after removing the sleeve but still bounced badly when slow.

Taken the cable out today and put a battery drill on the wheel end and with a nice gentle curve you can see the rotation is not constant velocity so deffo the cable.

cut down a fizzy pop bottle and drilled a hole in lid now oiling cable lets see what happens.

this is a video click it..

Gemo speedo cable by Paul_Barr, on Flickr

20180706_140240 by Paul_Barr, on Flickr

[itchyfeet]

oil have come throught other end, I tried it again same inconsistant velocity

I can only come to one conclusion the GEMO cables are crap!

So out with the origional VAG cable and oil that in the same way, I'll then put it back, going to try and fix the broken VAG cable that came out of the tin top too sick of GEMO cable bounce

20180706_143512 by Paul_Barr, on Flickr

[937carrera]

Good test there.

Do you fancy choping the Gemo cable in half and seeing which half is the problem..... repeat a couple of times and you might identify exactly why they are failing

[itchyfeet]

Strange tin top cable only one year older is different

I think a couple of layers of self adhesive heatshrink will do the trick

20180706_145623 by Paul_Barr, on Flickr