The speedo over reads, is there a way to calibrate it at all?
I had to take it apart and put needle back on at zero but spring must have adjusted?
I believe it's 'cos I haven't wound the spring up correctly when I stuck the needle back on?
I'd liketo get it spot on again!
Advice much appreciated

take it off and put it back on at less than zero?

( think it had an element of Preload) beyond that its not something that i fiddle with as they never go wrong.

Sean

Hmm
If I took the face off, took needle off got up
To 30 using satnav, and then stuck needle on at 30
That should work?

why did you take it off in the first place?

for the record - I don't recomend driving at 30mph whilst keeping an eye on the satnav and trying to refit a speedo on a 2cv dash and maintaining your speed

I wasn't planning on using an open road to do that
Was going to use the yard at work!

Anyone got a useable one?

sigh

take glass off turn the mech on the back till the needle reads 15mph take needle off and replace to 0 release the mech?

or do it your way and win the Darwin award

No don't stop him I wanna hear about it on the news

Well
The Darwin method was spot on although because on stupid I felt 3mph wasn't accurate enough (it was 3moh under reading vs the gps speed, so I took needle off. I did it whilst driving 20mPh but realisticly you need a cute blonde on your lap to drive whilst you put needle on. It worked. Waiting for the yard at work to clear before I do it!

Would increasing the tyre pressures have been too simple?

How would that work?
As I drove home I removed te needle and replaced at correct mph. Going to use sat nav to check. Use a speedometer app on my iPhone originally.
All is good
Now how to thread I'm arras