Rev counter = 0

[®evo03]

Loosing function on rev counter! Its a carb model, taking reading from coil, and is linked to distributor, is it the points pickup? 

Needle was shooting up and down, last week, now its dead, all im thinking is a rewire. Or would it be the circuit board behind clocks? 

There is a halfmoon connector behind rev counter, tried this also.

Anything else i can try or test? 

[Rapierdave]

I think someone had this before & it turned out to be a faulty capacitor on the circuit board.

[hoobby]

5 hours ago, ®evo03 said:

Loosing function on rev counter! Its a carb model, taking reading from coil, and is linked to distributor, is it the points pickup? 

Needle was shooting up and down, last week, now its dead, all im thinking is a rewire. Or would it be the circuit board behind clocks? 

There is a halfmoon connector behind rev counter, tried this also.

Anything else i can try or test? 

There is a capacitor on the back of the rev counter can do strange things to the need!e when it starts to fail hope this helps.

On 27/06/2020 at 15:19, hoobby said:

Just thought I would Finnish this thread as myself and probably many others come across threads like this and think "that's the problem I've got" to find the trail goes cold.

Started with one rev counter as above and the spare turned out to be completely dead both now working the problem was a capacitor on the circuit board this one has leaked.

Can be replaced without removing the needle 

Remove the three brass screws  from the back cover do not touch the two recessed screws in the middle then unclip it to remove

Remove  dial face screws and gently push some tissue in behind to create a little space

Make sure you fit the capacitor (16v 47uf) the right way round otherwise it may explode 😂

- stripe and shorter tail

+ Longer tail

+ On circuit board is the one closest to the center of dial.may not fix every rev counter but for 20p got to be worth a go.

 

 

 

 

 

[®evo03]

yes thanks !