Speedo problem

[Ernest]

Postby Ernest » Tue Jun 23, 2015 7:53 pm

Hi all

I am seeking advice...on a drive yesterday returning from a few days in Devon the milometer (odometer?) and the trip-meter on my van packed up. The speedometer itself works fine.
Does anyone have any idea of what the problem might be and how to cure it?
A look at the back of the speedo and all I can see is a connection for the cable itself and a connection for the dial light.
Any advice would be much appreciated - even if it's just directing me to a reliable VW garage/mechanic somewhere near south London would be useful.

Thanks

Ernest

[CovKid]

Common fault:

http://www.thesamba.com/vw/forum/viewtopic.php?t=292298" onclick="window.open(this.href);return false;

Note small bracket added in bottom pic. Best solution - superglue won't hold forever.

Also: https://club8090.co.uk/forum/viewtopic.p ... &p=8082754" onclick="window.open(this.href);return false;

and: https://club8090.co.uk/forum/viewtopic.p ... &p=7885666" onclick="window.open(this.href);return false;

[Ernest]

Dear Covkid
Thanks very much for this very helpful link.
Best Wishes
Ernest

[CovKid]

You're very welcome Ernest. Cog slides out and loses contact basically. You can glue them (I did in the past) but its generally a short-lived fix and something screwed on that prevents this is generally better. Some have had success crushing the end of the shaft so it flattens slightly but I think some kind of 'stop' is more reliable.

[Ernest]

Thanks again Covkid

I will try to make a fix. As the van has a log of every journey taken (however short) during its 69,000 miles it would be s shame if it I can't continue this in line with odometer record.
I know this sounds a bit anal but the log was started by the first owner of 17 years and so when I bought the van 8 years ago I keep the log going.
Best Wishes
Ernest

[ghost123uk]

My post from the other current speedo thread at https://club8090.co.uk/forum/viewtopic.php?f=37&t=143971" onclick="window.open(this.href);return false; =

Just be very careful with that very delicate hair spring that zeros the needle. I damaged one and from that point on it's a new / used full unit required. I was trying the drill technique and whilst doing so it slipped out of my hand, damaging that spring. On my replacement one, I just carefully stripped it down enough so I could move the cogs over the pegs. Delicate and tricky, but doable.

Re the slipping white cog. Can't remember where I read it, but glue is not ideal, squash the shaft gently between the serrated bit of the jaws of a set of pliers. Start gently, trying harder pressure until you get to the point where the cog is a firm push fit back onto the shaft. You can barely see the marks left by the pliers, but it works. Not my idea, I read it on BW or maybe the Sirocco forum (same basic design of speedo).

[Ernest]

Thanks very much for this sage-like advice Ghost 123uk
Ernest