[Mk2] [Turbo] replacement speedo

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phoenix70
Posts: 15
Joined: Sun Aug 12, 2012 1:03 pm

[Mk2] [Turbo] replacement speedo

Post by phoenix70 »

Hi

I'm having a real problem with my speedo. I've changed the speedo, the sender, changed the ground, and rewired the signal wire, and still can't get it to work properly. The problem is it works intermittently and over or under reads when working, then after a few miles it stops completely, leaving the car for a while and the gauge will start working as before.

I've also removed the delimiter, and that makes no difference.

I'm running out of ideas so im thinking about the idea of changing the whole lot with an after market set up, not sure if it's possible? The one concern i have is the power steering

Cheers


Scott
alanmr2turbo
Posts: 2238
Joined: Wed Nov 28, 2007 7:08 pm
Location: Birmingham
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Re: [Mk2] [Turbo] replacement speedo

Post by alanmr2turbo »

i have the same problem but mine under reads and 90% of the time doesn't work at all unless the car is at higher speeds.

Im just hoping it isn't the cog in the gear box that has almost given up.
phoenix70
Posts: 15
Joined: Sun Aug 12, 2012 1:03 pm

Re: [Mk2] [Turbo] replacement speedo

Post by phoenix70 »

Yes my worry is it's the cog in the gearbox too, and to get that out is a massive job, that's why I'm thinking of changing the whole lot, i.e. mounting a new speedo sender somewhere else and wiring it to a new speedo. I can get a loan of a camera to inspect inside the casing so I'll probably do that and see if I can check the cog.

Here's hoping it's ok.

Cheers
bobhatton
Posts: 3351
Joined: Fri Aug 25, 2006 9:34 pm
Location: Bodmin Cornwall

Re: [Mk2] [Turbo] replacement speedo

Post by bobhatton »

alanmr2turbo wrote:

Im just hoping it isn't the cog in the gear box that has almost given up.


I think that may well be what it is.
Remove the sensor and with luck it may just be the gear on the end of that and not the one inside the box
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
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