Mechanical to electrical speedometer.
Mechanical to electrical speedometer.
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Gingerbread Man

Original Poster:

9,173 posts

234 months

Saturday 21st March 2015
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What's involved in converting from a mechanical speedometer to an electrical version? I have a 1999 seven, 6 speed gear box. EU2 K Series, original ECU.
My speedo's recently stopped working, and I hear that the angle drive can be troublesome? So I'm wondering the options and overall cost of converting.

The speedo drive from the 6 speed box doesn't seem overly tight. What I mean by this is that I can reach underneath and turn it, it tightens freely, but then goes loose again. It's doesn't tighten to a stop as it were, this could be my problem.



Do you have to block the gearbox end up if you convert?
Buy an 80mm speedometer.
Buy a sensor and mount...where?
Buy the associated wiring?

BritishRacinGrin

26,000 posts

181 months

Sunday 22nd March 2015
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My 1999 live-axle car had been fitted with a Caterham Electronic speedo after the worm wheel went walkies. Looked like quite a simple instal, there's a sensor which counts the brake disc retaining bolts going by which itself was mounted onto a simple bracket which replaces the two caliper to upright retaining bolt spacers. The wire ran up the upright, across the wishbone and up to the dash. I suppose it also needs an ignition switched live and another which comes live with the headlights. Of course your current speedo will have these so all in all a couple of hours work probably. The speedos are simple to calibrate.

BritishRacinGrin

26,000 posts

181 months

Sunday 22nd March 2015
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Oh and my car still had the angle drive and cable on it but I removed and plugged it the next time I had the 'box out.

Gingerbread Man

Original Poster:

9,173 posts

234 months

Sunday 22nd March 2015
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I read a bit about the box end being easier with the box out. It's been wet today so I haven't bothered to look into it!

But I did download a speedo for my phone! The worst hit being the speed camera on the way to work.