townie 92 model speedo not working checked plugs at back of speedo head seem ok. any suggestions?

the speedo works when the car is cold but goes off when it comes up to temp!!
and where do the screws go from the removal of the dinger, i didnt take it off

- (#2795) RONNIE COE, 30 Apr 02

this is a long shot m8 but i had same on another motor ..what was happening was that the oil in gear box was thick ..when cold but soon as it got temp up it used to thin out....so there was a little bit of wear on the plastic drive for the speedo..(gear box end)...so i changed the plastic worm drive and it was cured...

- (#2798) granty33, 1 May 02

Or the sender might be breaking down when hot. Try metering it out cold, then when faulty, see if it's O/C

- (#2799) david miller, 1 May 02

Ronnie, the two screws that are removed to get the 62Mph dinger out are easily identifiable, remove the instrument panel then turn it over so you can see the circuit board clearly, you will notice two screw sized holes a few inches apart in the plastic circuit board, the holes are edged by a thin metal strip that makes contact with the screws (and originally the dinger contact terminals) you need to make sure that the two screws are in place, they are needed to make contact on the circuit board so that the speedo works, however, I am not sure if that would manifest as your problem of no speedo when warm.

- (#2801) Rob Drinkwater, 1 May 02

thanx for the suggestions, i'll try to look when i get time.

if it is the sender where can i get one ?....anyone know

- (#2804) RONNIE COE, 1 May 02

Scrappie? Dealer?

- (#2806) David Miller, 2 May 02