RPM needle gets stuck, acting wierd.

[Jonas_R]

Well my RPM needle, is acting up. Sometimes it simple stops to move and suddenly jups prehaps 700 rpm's up the scala.

I remember seing a thread about this, but i cant seem to find it?

Anybody have any suggestions to how i can fix the problem?

/Jonas R.

[SteveH]

Jonas, Mine has done this in the past. Take the instrument cluster out and clean all the contacts you can find. It's also worth looking for cracked solder joints, these are common too.

[Beetie]

My mate had a dodgy tacho, it turned out to be the magnetics on the back playing up....

[porkkis]

Probably the face is peeling under the center of the needle causing the needle to stick. Dismantle the cluster and use clean paper sheet or similar and stick it behind the needle.

[pastures16]

mine went up to 4rpm then dropped down to nero thats what beetie was saying and it was the electro magnet in the rear of the gauge easy to swap over the hole unit

[pastures16]

try this link
http://cuatrokoop.audi-quattro.org/index.htm
go to the misc tech write ups

[Jonas_R]

So you got a spare part number for the magnet?


/jonas r.