comedy of errors

[slideways]

Hi all
The odometer in my 95 chim stopped clocking up the miles at 0900100. not uncommon i know but when i tried the usual remedies the oil light lens on the bottom right of the speedo fell fell out, so send it to speedy cables i thought, then again in the spirit of tvr ownership i could fix it my self i thought?got the speedo out of the car no problems,
disconected the wiring all ok so far, tried to get the back off and found after much prising and swearing and loosing the end off a watch makers scewdriver that its glued on to 4 internal screws, bugger and arse i thought prise a little more and finally i broke the plastic, still not inside, so not to be beaten now ive come so far i need to locate another broken speedo of the same type take the back of alot more carefully now i know how, fix the problems and put it all back together, or go to speedy cables and be done with it????

[Chimjunkie]

Sympathise deeply! Been there but had more success. The problem with these units is the coupling between the stepper motor and the mechanical counter. The coupling starts to slip under the load of the bigger turn overs (999 to 1000 etc). The solution is to slightly kink the coupler and push the motor back on, or use loctite on the bugger. Entry is best gained by carefully prising back (all the way round) the front ring which holds the plastic clear front in place. It is difficult to do this and put it back on without it looking crap when back together. Special machine needed. But can be done with care and patience. A new unit is only around 130 quid so best buy a new one

[slideways]

Chimjunkie said:

Sympathise deeply! Been there but had more success. The problem with these units is the coupling between the stepper motor and the mechanical counter. The coupling starts to slip under the load of the bigger turn overs (999 to 1000 etc). The solution is to slightly kink the coupler and push the motor back on, or use loctite on the bugger. Entry is best gained by carefully prising back (all the way round) the front ring which holds the plastic clear front in place. It is difficult to do this and put it back on without it looking crap when back together. Special machine needed. But can be done with care and patience. A new unit is only around 130 quid so best buy a new one

did you do this on an alloy bezel ?

[slideways]

Thanks for the great advice done and dusted in half an hour and it all looks great,just got to get it back in the car in the morning, and fingers crossed it will work.
thanks again