Car Record Player Parts / Machinist????

Vince Lupo · Post by **Vince Lupo** » Sat Feb 13, 2010 5:12 am

Maybe I should just buy this one and be done with it:

http://cgi.ebay.com/ebaymotors/1960S-CA ... 500wt_1182

That is too crazy!!!!

mike1969 · Post by **mike1969** » Sat Feb 13, 2010 8:16 am

Vince,
A clock repair person has the equipment to reproduce small gears like that.

All you would have to do is transfer the protubances to the new gear

mike1969 · Post by **mike1969** » Sat Feb 13, 2010 8:16 am

Vince,
A clock repair person has the equipment to reproduce small gears like that.

All you would have to do is transfer the protrubances to the new gear

G-Man · Post by **G-Man** » Sat Feb 13, 2010 1:00 pm

Vince

Putting fresh teeth on to a part that's not circular is a bit challenging but the teeth on the cam should be equidistant. The job then is to make some kind of tool that will follow the shape and cut the teeth. I think, economically, that you will be better off buying another machine bearing in mind that this may be a common problem.

I would love to see the mechanism working to get more of a feel for what needs to be done. You need to find an enthusiastic, retired, instrument maker or toolmaker who fancies a challenge. My Father-in-Law resurrects old clocks for people and just enjoys meeting new people and solving their problems. If you engage a professional he's going to charge you professional rates, as you've already discovered.

I use an aluminum solder, to build up motorcycle parts, and it would be definitely possible to build up some metal on the periphery of this wheel / cam. Maintaining the correct shape while cutting the teeth is going to be tricky, though.

Sorry, that hasn't helped much. I'll keep thinking........

G

G-Man · Post by **G-Man** » Sat Feb 13, 2010 1:04 pm

Vince

I'm not convinced that those are (or ever were) real gear teeth. They are just there to increase friction between two mating parts. On that basis it might only be necessary to 'sharpen' them with a needle file. A file, a magnifying glass, and a massive dose of patience may be all it needs......

G

Vince Lupo · Post by **Vince Lupo** » Sun Feb 14, 2010 2:49 pm

G-Man wrote:Vince

I'm not convinced that those are (or ever were) real gear teeth. They are just there to increase friction between two mating parts. On that basis it might only be necessary to 'sharpen' them with a needle file. A file, a magnifying glass, and a massive dose of patience may be all it needs......

G

You mean like this?

Amazing what you can accomplish on a Sunday afternoon. It definitely has more 'bite' to it, and I was fairly conservative in my filing (only took about 40 minutes). I picked up a set of files this morning at Home Depot -- $9.00. I'm going to call the record player repair fellow this week and see if he can try it now. Thanks for the suggestion - it's much better than it was, and hopefully this is all it needed.

Here is what the record player looks like -- the highlighted part in drawing #2 is this gear (#15), and it comes in contact with that rubber roller (part #18).

If you can't figure it out, the player is mounted upside-down in the case. Everything is spring-mounted, and they absorb any road bumps. They're pretty effective, believe it or not!

G-Man · Post by **G-Man** » Sun Feb 14, 2010 4:40 pm

Vince

You really are determined to get this thing working, aren't you! I hope that helps get it working for you. It looks lie an amazing piece of equipment. Please let me know if that has helped. If it was me I would try and buy another on (if possible) for spares.

I'll spend some time looking at that amazing diagram.

Good Luck

Graham