Speedo Bounce

An alchemy of sparks, copper wire and earth

Moderators: User administrators, Moderators

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Speedo Bounce

Post by itchyfeet »

937carrera wrote: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

Maybe ...but I don't see how it helps others with GEMO cables as you can't take them appart

just checked VW classic and they are available for 40 quid plus delivery
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
R0B
Moderator
Posts: 18855
Joined: 07 Oct 2005, 17:33
80-90 Mem No: 864
Location: Cheshire

Re: Speedo Bounce

Post by R0B »

I wonder why it says this for the cable on the classic website?

252-957-803/F
SPEEDOMETER WITH KILOMETRE TRIP RECORDER
2.1 LPG/Petrol Auto Caravelle

"The difference between genius and stupidity is that genius has its limits"

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Speedo Bounce

Post by itchyfeet »

R0B wrote:I wonder why it says this for the cable on the classic website?

252-957-803/F
SPEEDOMETER WITH KILOMETRE TRIP RECORDER

yeh I saw that too.

I have been thinking I should be fair to the GEMO and fit it to speedo after oiling, when it's not fited to speedo it's not held centraly and that may affect it, it's just draining of oil at the moment
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Speedo Bounce

Post by itchyfeet »

Something else strange is this join in the F suffix VAG cable?

Image20180706_152125 by Paul_Barr, on Flickr
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Speedo Bounce

Post by itchyfeet »

Right connected GEMO to speedo and spun wheel end with a drill while I watched, I discovered that pulling in the inner makes it much much better.

when you fit a cable you push the outer though the hub then fit circlip, that pushes inner into speedo and I think that's part of the problem

I think you then need to pull on their outer pulling it out of the hub while the inner is still attached I think it will help improve it.

Somebody try it 5 minute job ?
Last edited by itchyfeet on 29 Aug 2019, 14:15, edited 2 times in total.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Speedo Bounce

Post by itchyfeet »

Tested the VAG one in the same way and it's not really affected by pulling on inner.

it was very much better so put that back and road test tomorrow.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Speedo Bounce

Post by itchyfeet »

Test drive today with the original VAG cable that's been oiled and nearly perfect, just a slght wobble at 30 ish the rest is steady as a rock.
:ok

(this is a video click it)
ImageVAG speedo cable by Paul_Barr, on Flickr

next to fix the tin top and swap out the crappy GEMO cable.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

Sir Brixalot
Registered user
Posts: 4569
Joined: 15 Oct 2010, 21:55
80-90 Mem No: 8927
Location: London

Re: Speedo Bounce

Post by Sir Brixalot »

Does it bounce a lot below 30
Honorary "Dave" 

 

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Speedo Bounce

Post by itchyfeet »

itchyfeet wrote:just a slght wobble at 30 ish the rest is steady as a rock.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
dumbo
Registered user
Posts: 477
Joined: 24 Jan 2012, 20:21
80-90 Mem No: 10625
Location: burwell cambridgeshire

Re: Speedo Bounce

Post by dumbo »

A quick question does the other van's speedo do the same?? If so have you tried swapping cables mine bounce just before 30 as well so if its the £40 cable better I'll get one :ok
Simon
1986 DG WBX AUTOHOMES kamper

User avatar
dumbo
Registered user
Posts: 477
Joined: 24 Jan 2012, 20:21
80-90 Mem No: 10625
Location: burwell cambridgeshire

Re: Speedo Bounce

Post by dumbo »

I think its the angle?? Under speedo to outside some how cause when you drive and hold the cable down its fine? But why its like you need an bracket and cable tie to sort it??
Simon
1986 DG WBX AUTOHOMES kamper

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Speedo Bounce

Post by itchyfeet »

tin top bounces too at lower speeds normally
if I park in the sun it goes mad for 5 minuites before it settles down so affected by heat also.

I think it may be that the gemo should be well oiled before fitting
I suspect its now ruined because it was better when first fitted.

if it were just angle the VW cable would be affected also.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Speedo Bounce

Post by itchyfeet »

Somebody needs to buy a VW cable.
Mine are probably origional so its anybodies guess if the current VW offering is worth the extra money.
Just possible you spend double and get the same part.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

User avatar
slowcoach
Registered user
Posts: 1575
Joined: 06 May 2010, 10:23
80-90 Mem No: 8892
Location: West Yorkshire
Contact:

Re: Speedo Bounce

Post by slowcoach »

The beetle Speedo cable is the same method/construction isn't it? - Any info on beetle bouncing needles? I've got used it it and it doesn't bother me (gemo- I've replaced it twice in 8 years), but if this could be figured out, I'd obviously get the non bouncer next time :-)
===================
1984 TRAKKA Conversion Subaru EJ20 5 Speed

User avatar
itchyfeet
Registered user
Posts: 12427
Joined: 23 Jul 2007, 17:24
80-90 Mem No: 12733
Location: South Hampshire

Re: Speedo Bounce

Post by itchyfeet »

Tin top VW cable was broken here fixed with self adhesive heatshrink :D

ImageP1100449 by Paul_Barr, on Flickr
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

Post Reply