Smiths speedo rebuild

[TooMany2cvs]

I've just got a 1980 s3 Landy back on the road, and the speedo's playing up.

The odometer works just fine, and is accurate, so it's not a cable issue.

From cold, the speedo is broadly accurate (although I've not checked it
against GPS), and the needle smooth. But, after about 10 miles or so, it
becomes ever more pessimistic, until it refuses to acknowledge anything
above 30. The other day, it decided 30 was where it REALLY wanted to be,
and just stuck there, even when the speed dropped. A day later, I got
back in the car - and the speedo still read 20, until I moved the car,
at which point it decided that we really were stationary.

The odometer says 42k miles, and is accurate and original, so I don't
want to just lob a replacement in.

Anybody got any experience or recommendations for getting it rebuilt?

[TooMany2cvs]

Mellow Yellow said:

I've used Speedy Cables in the past and found them to be very good, although more recently I've heard their turnaround times are quite high so I'd suggest checking beforehand.

Thanks - they're one of the ones I'd found, and dropped an email. You're right about turnaround - they're saying "20 working days".

[TooMany2cvs]

lowdrag said:

Four months for all my E-type gauges and that was with a lot of pushing. May well just be old grease gumming it up and a shot of WD40 might loosen it up.

Oof. Thanks for the warning.

With a couple of PDFs that I've located, I've just about summoned up the courage to dive in there and have a rummage. It almost certainly is just a bit sticky - it might well free up with some use. The Landy's back on the road for the first time since 2011 - it did about 3,000 miles across three years then, after sitting for a decade before that...