Re: Vacuum Antenna

Posted by HH56 On 2014/9/3 19:04:28

Yours looks similar to the 47 except I don't see a nut holding it together. My tube inside measurement is 1.225 so slightly over 1 3/16. Not sure if yours is the same. I had thought about seeing if piston cups from a wheel cylinder rebuild kit would work. Those are inexpensive so if it doesn't work, just time spent & not a big expense.

The rubber cups placed back to back with a hole made in the center for the stem should work about the same as the leather as long as the tube is lubricated with silicone grease or something that won't swell rubber. Might have to make a different diameter fiber stabilizing washer that will fit the inside of cup though.

How are your seals up in the fender mount end. Those are the ones I'm having to figure out a way to access and a replacement for. My problem is the way the antenna is constructed the bakelite piece that holds the seals and makes the antenna connection appears to be crimped into the tube so doesn't want to come out without destroying it. Trying to figure that end out is still a work in progress