Hello again. I have another question about the FJ-40. We have been working on a 1969 FJ-40. My friend is trying to get it ready for the summer and it needed some bugs worked out.
Our latest struggle is repairing the odometer. The odometer was frozen in place. We took it apart and cleaned the shaft and number cylinders. Upon further inspection I found that the gears between the drive gear and the first worm gear are stripped. This was pretty amazing considering that this early gauge cluster used metal worm gears. So now we must find away to repair the worm gears. Of course, this is a very difficult part to track down. He does have a 1974 gauge cluster that he acquired to replace or swap parts. This leaves us with a few ideas to correct the problem.
Idealy we would just put in the newer cluster. There are a few problems with this. First, it requires a clip speedo cable and the old one is screw style. We found a place that will change his current cable to match what we need. The next issue is that it has a circuit board that apparently has some sort of harness plug that lights the dash. The 1969 FJ does not have the proper wiring harness for this. I was wondering if any one had any input on this. Could we solder wires to the circuit board to light up what we need lit? How does this circuit board play into the function of the gauges, if at all? Also, the fuel gauge has three terminals instead of two like the old one. Any input on how this newer style cluster works would be greatly appreciated.
We could try to replace the worm gears from the new cluster. This seems like it would be difficult because the worm gear is set in place and would need to be hit out with a hammer and punch. Also the drive gear is pretty mangled up and I don't see any way to replace it.
Lastly we have pondered the idea of just putting the speedometer housing in the old gauge cluster. This of course would require some modification and might not look the greatest.
OK, I'm done. Again, any input on any of our ideas would be awesome. Also, any new ideas would be helpful. Thanks again to all the helpful advice.
Our latest struggle is repairing the odometer. The odometer was frozen in place. We took it apart and cleaned the shaft and number cylinders. Upon further inspection I found that the gears between the drive gear and the first worm gear are stripped. This was pretty amazing considering that this early gauge cluster used metal worm gears. So now we must find away to repair the worm gears. Of course, this is a very difficult part to track down. He does have a 1974 gauge cluster that he acquired to replace or swap parts. This leaves us with a few ideas to correct the problem.
Idealy we would just put in the newer cluster. There are a few problems with this. First, it requires a clip speedo cable and the old one is screw style. We found a place that will change his current cable to match what we need. The next issue is that it has a circuit board that apparently has some sort of harness plug that lights the dash. The 1969 FJ does not have the proper wiring harness for this. I was wondering if any one had any input on this. Could we solder wires to the circuit board to light up what we need lit? How does this circuit board play into the function of the gauges, if at all? Also, the fuel gauge has three terminals instead of two like the old one. Any input on how this newer style cluster works would be greatly appreciated.
We could try to replace the worm gears from the new cluster. This seems like it would be difficult because the worm gear is set in place and would need to be hit out with a hammer and punch. Also the drive gear is pretty mangled up and I don't see any way to replace it.
Lastly we have pondered the idea of just putting the speedometer housing in the old gauge cluster. This of course would require some modification and might not look the greatest.
OK, I'm done. Again, any input on any of our ideas would be awesome. Also, any new ideas would be helpful. Thanks again to all the helpful advice.
