Five speed gearbox speedo correction
Posted: Fri May 13, 2016 1:09 pm
My TC has a ford type 9 gearbox. I bought a small speedometer ratio correcting gearbox from Speedograph Richfield which goes on the car end of the cable and it has a ratio worked out to correct the roughly 50% slow error the speedo shows without it.
Unfortunately it keep snapping the cable of this small gearbox where it fits into the car. It looks like the tiny gears are locking and as they keep being driven the small cable stub snaps. If I take off this little gearbox and re-connect the original cable everything works with the speed error so I can only conclude it must be the little gearbox Speedograph supplied this and the special cable. Giving them credit Speedograph have tried really hard to work out what is wrong and have repaired it three times now at no cost to me but today after 50 miles it snapped again. I think it was when I reversed but I couldn't be sure.
Do any of you have the type 9 gearbox and what did you do to correct the error?
I'm a bit worried as I'm planning a 5000 journey starting in a month and I'd feel better if it worked if only to help remind me when to fill up with petrol.
Thanks for any advice you can offer.
Unfortunately it keep snapping the cable of this small gearbox where it fits into the car. It looks like the tiny gears are locking and as they keep being driven the small cable stub snaps. If I take off this little gearbox and re-connect the original cable everything works with the speed error so I can only conclude it must be the little gearbox Speedograph supplied this and the special cable. Giving them credit Speedograph have tried really hard to work out what is wrong and have repaired it three times now at no cost to me but today after 50 miles it snapped again. I think it was when I reversed but I couldn't be sure.
Do any of you have the type 9 gearbox and what did you do to correct the error?
I'm a bit worried as I'm planning a 5000 journey starting in a month and I'd feel better if it worked if only to help remind me when to fill up with petrol.
Thanks for any advice you can offer.