I have well used 1976 R76/5. The odometer stopped working at around 57,000 miles but the bike probably has 157,000 on it. I was ok without the odometer functioning but this past week the speedometer began to make a sound that seems to be a combination or squealing and buzzing. It is coming from the speedometer itself. I have removed the speedo cable and the noise stops immediately. Any thoughts on lubricating the internals of the speedo? I'm fairly mechanically inclined and have done all of my own maintenance and repair since I inherited the bike from a neighbor about 10 years ago. I realize that I can send it in for repair but I want to see if this is a do it yourself sort of thing first.
I apologize if this post ended up in the wrong category.
Anyone?
Never mind
You may want to try WD-40 dry lube with PTFEs
http://wd40specialist.com/products/dry-lube/
Look up the other thread here dealing with speedometers and odometers.
The noise is caused by the oxidized lubricant refusing to flow any longer. You'll want to use a silicone based watch oil on the indicator movement and all parts of the fine drive. On the coarse drive (the larger gears and their shafts) you'll want to use a synthetic gear grease. The reason for both lubricants is that they'll be much slower to oxidize.
You can fix your odometer at the same time. That's a well documented gear that's slipping on the shaft. You can epoxy as per the instructions that are very easy to find on the web, or I successfully used wicking green LocTite #290. Either way, you are working in a space with only a tiny 3-4mm of clearance. A hobby vice, bright work lights, parallel blade gunsmith screwdrivers, a jeweler's magnifying head band, and small dental tools are the order of the day.
Or simply send the whole unit out.
Owning an old Airhead is easy.
Keeping an old Airhead running great is the true test.
Never mind
Simply an observation, but IMHO someone who cannot wait for 2 days and 5 hours for a reply ought not to open the speedometer housing at all. Once you have all the tools I've listed (which will take a month by itself), you'll need to allot at least another month for the repair while working in a space that remains completely undisturbed for that entire time.
This for the simple reason that none of the parts inside or outside the housing are available new any longer. One broken part or one torn circuit board, will double the third party repair costs.
Simply an observation. 🙂
Owning an old Airhead is easy.
Keeping an old Airhead running great is the true test.
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