Instruments not working (Volvo 66)

[Tero Huikko]

Hello,

Few probs on my new moss-based Volvo 66.

1) Voltmeter doesn't show anything
2) Petrol Gauge doesn't show anything

If I ground the petrol gauge wire it should read full tank, right? Well it doesn't.
Is there an own voltage stabilizer on the clocks unit itself?

I'm pretty sure I have seen the voltmeter working but now it's dead.

[macplaxton]

On my original 66 dash, my volt meter wasn't working, but the fuel gauge was.

If you ground out the fuel gauge wire it should read full.

There is a voltage stabiliser (61) and it sits on the back of the instruments on the voltmeter / fuel gauge clock pod.

[Tero Huikko]

Thanks a lot. You don't happen to have the whole catalog scanned somewhere?

If I ground the wire but the voltage stab is broken it doesn't read full?
If I measure the ohms between the tank float connections it doesn't give any reading.

[macplaxton]

I've got some instruments somewhere, but I can't remember if they're the later type with the orange lettering.

I'll have a dig around and maybe drop you a PM when I find some scans

I am working on doing some searchable PDFs, but that really means firing Windows up to use Adobe Acrobat which I only do once in a blue moon. The stuff I have is for the DAF 66, 55 and 44. I don't have any Volvo 66 books. I've also got some service bulletins too.

Can you not by-pass the voltage regulator to see if you get a reading? I know the sender unit should have a resistance somewhere between (very approximately - i.e. complete guess!) of 20-300ohms (full-empty).

[Tero Huikko]

The operating voltage on the volt/petrol gauges is not 12V. If I bypass them they'll surely fry.

Seems like I need new set of clocks and a tank sender for starters.

[macplaxton]

Tell you what, I've got a Christmas tree to put back into the loft, so I'll look for the box with the bits in

Can you post a picture of your clocks so I know what style they are?

[Tero Huikko]

http://hobby.marktplaats.nl/overige-hob ... lokje.html

This type and colour. Thanks mate.