Stewart Warner Wings Speedometer ???

[48bill]

I have recently replaced the speedometer cable for the SW speedo and the gauge needle flucuates or jumps drastically.  I also hear a noise from the speedo gauge like a weight hitting when the needle swings back to a lower speed. When I installed the new cable I lubed the cable well with "Super Lube Synthetic Grease".  

In atempting to solve the problem of needle jumping.  I took the cable out again and carefully wiped it clean and relubed it adding graphite to the grease and I have the same problem.

Does it need to be driven for a while for this to go away or is it a problem with the speedometer itself?

[enjenjo]

You might try loosening the nut at the speedo a couple turns, and see if that cures it. If it does, you cable core is too long. Shorten it about 1/8" and try again.

[48bill]

enjenjo,

Thanks.

I did that and it cut the flucuation down to what looks like more of a vibration of 1/32's inch or less.  I'll get it up in the air next week and cut it down an 1/8".  Do I cut it at the end into the gauge?  

[enjenjo]

Either end, or maybe both. Typically the end of the cable is welded before cutting, so removing the weld will let the cable unravel. So don't cut enough that the weld is removed. You could also get a faucet washer, slip it inside the nut on the cable at the transmission, and tighten it up against the washer to keep it tight, and still sealed.

[48bill]

enjenjo THANKS!!!

I shortened the cable by 1/8 to 3/16's and it works great now.

I appreciate the help.