This past winter, I pulled the Tach in my 59 for rebuild to correct several problems. I reinstalled it along with a reproduction tach cable and it's still noisy. I test ran the tach with another short length of speedo cable and a drill and it runs quiet as it should. After much time and effort troubleshooting, I determined the Reproduction cable is causing the problem. It appears to be "floating" in the sleeve as the base of the tip is not in positive contact with the housing and the noise is coming from the base of the tip moving around. Also confirmed by the fact that the noise can be influenced by moving the back of the cable housing
while the car is running with the thumb screw fully tightened.
SO, I went down to my local FLAPS and bought a generic replacement cable inner core and fitted it to my original old housing
. That one tightens up OK, but the replacement cable tip is binding and won't turn when fully tightened. I could maybe flip the cable and have the hard tip in the generator end (backwards from how it is supposed to be). See photos below.
Here are the questions:
1. Has anyone with 58-61 Generator driven Tach experienced a noise problem relating to the reproduction cables??
2. Has anyone had any luck finding a replacement inner cable with a tip that fits the tach without binding? If so, where can I get one??
3. Should I try to reverse the ends of the replacement cable so the tip is in the Generator to get it to work?? Keep in mind the bottom of the tip has a shoulder which also shields the tach from grease (Not my first choice).
Here are photos of both:
REPRO CABLE ON LEFT, ORIGINAL W/ REPLACEMENT CORE ON RIGHT (NOTICE THE DIFFERENCE ON THE CABLE TIPS)
ORIG CABLE LEFT, REPRO RIGHT NOTICE THAT WHEN BOTH ARE FULLY SEATED, THE REPRO IS ABOUT 1/4 IN SHY OF BEING FLUSH WITH THE THUMB SCREW END, WHILE THE OTHER IS EXACTLY FLUSH.
Any thoughts, or information of where to go from here would be appreciated. TIA