toothed wheel - what is it for?

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ScottR400D
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That makes sense James but as far as OP is concerned he still just need to find correct feed to the speedo? If it's there! 

John Vine
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Re #21:

The OP has a K, so does that still apply?

Actually, it seems that his chassis has bits of a Sigma/Duratec harness.  It that possible?

JV

timb2117
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Thankyou all I think I have tons to go on now, John and Scott I swear you are using Jedi mind control to know exactly what I am looking at and thinking! :)

The photo you sent was exactly the sender I have fitted and the explanation for the changeover year makes sense too. Plus the actual loom harness I Couldnt be totally sure until I get closer and clean it (and get my non colour blind son to have  a look)!! Perhaps thats why I never became an electrician....

Please dont be alarmed I see most colours just have zero colour match clothes taste :)

Thanks again forewarned is forearmed when the new speedo arrives I will let you know how it goes.

John Vine
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Re #14:

I asked CC what the I/D of the reluctor ring was, and they replied 71.4mm.  I've no idea (yet) whether that's a common size.

JV

ScottR400D
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71.4mm isn't common but 2 13/16" was at one time. Wink

CC still in the past? 

John Vine
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CC still in the past? 

Not so much CC, perhaps, as GKN (assuming they make our driveshafts)? 

Anyway, on that assumption, I've asked GKN if they can supply the ring, and also provide measurements of the ring (I/D) and tripod tulip (O/D).  If/when I hear back, I'll post up details.

(I've updated this thread as well.)

JV

ScottR400D
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Maybe GKN too then!

Please let us know how you get on. A direct contact for replacement shafts et al could be really useful. 

Tuck2020
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I'll be watching this like a hawk now JV is on the case for a reluctor ring, as I want one too!