I had posted previously about burning out the coils, points and switch on the pony motor of my 1956 John Deere 70 Diesel. In replacing the switch, the dash had to come out, which means the tachometer cable was unplugged from the back of the tach. I finally got the correct coils for the plug wires, got the points in and replaced the switch a few nights ago and am happy to say, the pony motor starts and runs fine now. I don't remember noticing whether or not the tach worked when we started it the other night, but I did start it today, and noticed it is not working. I do remember having a time getting the cable hooked to the back of the tach. Today, I also took it off and eventually got it re-attached and when I started the diesel, the tach needle slowly turned completely around the gauge a few times and stopped. Here is where it sits now and doesn't move.
It's kind of a son-of-a-gun to get the cable screwed onto the back of the tachometer as it is a very stiff cable and not easy to manipulate, and of course, there is limited room to maneuver behind that dash. It seems to be in place, but it just won't grab the threads, like it's possibly not in there far enough. Eventually I can get it to grab and connect. Is there a certain way the cable goes into the tach? Did we possibly do something to it when we took it off the first time as it seemed to come off a little stubbornly. Any help would be appreciated.
It's kind of a son-of-a-gun to get the cable screwed onto the back of the tachometer as it is a very stiff cable and not easy to manipulate, and of course, there is limited room to maneuver behind that dash. It seems to be in place, but it just won't grab the threads, like it's possibly not in there far enough. Eventually I can get it to grab and connect. Is there a certain way the cable goes into the tach? Did we possibly do something to it when we took it off the first time as it seemed to come off a little stubbornly. Any help would be appreciated.