I've had my 1983 +8 since 1988. not much is original after 130,000 miles. It still has the original Rover 5 speed box.
The latest problem is the speedo that started to wobble at 50 miles an hour. It progressed to only reading a half of the true road speed (checked with tom tom!). last year I replaced the speedo cable to no avail, same problems.
I gather it is probably the speedo drive as it comes off the drive shaft. I've stripped out the seats and gearbox cover but don't know how to access the speedo drive. I'm terrified of pulling something out of the gearbox and reducing it to a pile of random cogs that need an expensive rebuild.
I have seen that the likely worn part is a plastic cog that takes the rotation from the back of the gearbox and then turns the speedo cable.
Any advice would be welcome-the more basic and idiot proof the better.
