Thought I would take some time during the cold weather to repair the odometer in my '66 coupe. Ordered a new drive gear from Zip and got it installed yesterday. The old gear was pretty worn. Odometer works great now.

Alan

 

Looks like you are blessed with a high degree of mechanical skills. Any chance you could share with those of us who are mechanically challenged a brief description of the steps you used. Anyway, well done.

 

I wish I had documented it step by step, but unfortunately I didn't. It really wasn't that difficult though, mostly obvious when disassembling the speedometer. Getting the dash out and putting it back in was the difficult part!

A couple of things though....first, Willcox Corvette has a video that will help when removing the speedometer (and tachometer) needle and getting it reinstalled correctly:

http://repairs.willcoxcorvette.com/?...dometer+needle

The gear I replaced was the 2nd worm gear located in the back frame and at an angle to the magnet/first gear. The magnet/first gear was in good shape, so it didn't need to be replaced. The first gear is the one that goes through the back and connects to the speedometer cable. Look at how the 2nd worm gear is installed closely before taking it out. There is a brass retainer that holds one end of the gear and and the other end of the gear fits into a small hole on the frame. Take a small punch and tap it out from the end that has the smaller opening so that it drives out the retainer on the other end, which will allow the gear to be removed.

When you get everything reassembled, give the shaft at the back where the cable connects a few spins to make sure that the speedometer needle moves freely and goes back to rest on the stop at 0.

Alan