Something has suddenly gone wrong with my speedo. It's the centre binacle smiths type.
All of a sudden the speedo will not read below 37kph. even if im stationary it still says 37kph. however when my speed exceeds 37kph then the needle moves and the reading is bang on accurate with the gps speedometer app on my phone. The odometer also continues to function normally.
While i was driving i suddenly got a few seconds of sound like you'd get when bolts came off a rotating spindle. I'm guessing the spring that pulls the needle back down to zero has probably come off or something?
Anyone have instructions on how to open up the speedo and access the innards?
This speedo was calibrated and refurbed by Speedy Cables less than a year ago 
Had a similar problem a couple of years ago, however agree with the current answers and suggest that you contact Speedy cables and talk to them direct, I am currently getting them to fit a mini centre speedo cable to a Rover/Mg gearbox drive spindle and all they quoted me was £26 which includes them providing the cable themselves, which I found super reasonable , so do phone them they seem reasonable, although very very slow to answer e-mails. Back to the problem itself.....I googled/you tubed speedo repairs and found more than 1 helpful sites with idiot proof walkthroughs...so that's also another option.......... if not ........I do have a couple of spare used but in GWO centre speedos in my garage so if all all fails and you are at a sticky end, I am more than willing to post you one of them FREE............. you just pay the postage mate.
PM me if you get stuck and I'll watts app you a few pics foryou tohave a look.
Or thinking about it I could just send you one either to open and play around with to see if ytou can rectify your own fault, or us bits as a replacement.
Good luck
Splinterchat.
Edited by splintercat, 08 August 2019 - 07:09 PM.
