trip counter sticking

[slowbus]

Hi all.
I have a 1990 1.6TD and the trip counter and kilometer counter are sticking intermittently (sometimes for a couple of days). Is there a common fault or remedy that anyone knows of?
Much appreciate your help in anticipation.
John

[billy739]

a bit of wd 40, but you may find the cogs are breaking up amongst other things

[slowbus]

Thanks Billy

[slowbus]

Have now rectified sticky trip counter. I replaced the speedo head with a second hand one I bought from T25 DIRECT