diesel clock

diesel freak · Post by **diesel freak** » Sat Nov 21, 2009 9:37 am

Can not seem to find a bend or crack in the cicuit board. Wonder if it is one of the small diodes or relays on the back of the film strip. I called a repair shop and they wanted $100 to fix. Will drive it without the water temp guage for now. At least my clock works.

surfcam · Post by **surfcam** » Mon Nov 23, 2009 9:55 pm

One of my cars had a couple of wires soldered on to the printed circuit. I'm guessing they used some cold solder glue product. It did work for a while. Then the fuel and heat gauge started acting up. When I took the cluster out it had some burn spots that the PO was trying to jumper over. I think this printed circuit was to far gone to fix but I think a small gap in the printed circuit might be fixable in this way. If you can find it.

diesel freak · Post by **diesel freak** » Fri Dec 18, 2009 8:43 am

Do you know if I could buy a new printed circuit board anywhere?

Vincent Waldon · Post by **Vincent Waldon** » Fri Dec 18, 2009 9:33 am

My guess would be that the circuit board has been NLA for many years.

There's a very common failure mode with the voltage regulator that has specific symptoms...what exactly is not working on the cluster?

VWCaddy · Post by **VWCaddy** » Fri Dec 18, 2009 11:50 am

http://www.4crawler.com/Diesel/CheapTri ... lockRepair

And if you can find the crack in the PCB trace, you can get a conductive paint at a good electronics/radio repair shop. I have a small bottle, from Radio Shack as I recall (not sure if they carry it any more), but it looks like a bottle of nail polish and smells about like that too. Paint is loaded with metal particles and when it dries, it leaves a conductive coating.

dubdoc · Post by **dubdoc** » Fri Dec 25, 2009 6:11 am

Couldn't you use the paint/repair for rear window defrosters? That should work.

diesel freak · Post by **diesel freak** » Mon Feb 15, 2010 6:29 pm

I took the cluster out and wired the clock directly to the battery and it worked so I guess there was either no power to the clock wiring or a break in the circuit board. I soldered a wire to the back of the clock and wired it to my radio hot wire and soldered a wire to the ground wire to the back of the clock eliminating any breaks in the circuit board. All is working for now, will keep you up dated.

rabbit_man · Post by **rabbit_man** » Mon Feb 15, 2010 7:41 pm

I had a broken circuit like that and found it by seeing how far along the path it got until the power ended, turned out the circuit was broken right around where the nut tightens down on the path. A washer under the nut fixed it.....I guess that was for the temp gauge though.

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