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Charlie don't surf wrote: Areo lube? Was that the teflon stuff that once the liquid carrier evaporated it was supposed to leave a silky coating on the parts?

Yep, thats the stuff I have anyway. Used to use it on slot cars too.
Todd

I hate to see what the bearings look like after a toothpaste treatment!

Then again, they would be "minty fresh".

IIRC, the toothpaste treatment back in the day was to break in the original bronze Oilite bushings, and not the gears. The gears in the 6-gear that needed break-in help were the steel idlers and top shaft. Under a magnification loupe, you could see rough edges and tiny burrs. Toothpaste isn't going to fix that—just make a big mess.

I think toothpaste would fix it, as long as it has some abrasive qualities.

Toothpaste is not abrasive enough to remove metal, otherwise it would remove tooth enamel, too.

It will remove enamel, if you ran it at 29k rpm! its more abrasive than you think, one of the tricks to restoring old ( pre 77 ) Rolex watch lenses is AIM toothpaste and a soft cloth-

Charlie don't surf wrote:It will remove enamel, if you ran it at 29k rpm! its more abrasive than you think, one of the tricks to restoring old ( pre 77 ) Rolex watch lenses is AIM toothpaste and a soft cloth-

Oh I know... I have used it with great success on sunglasses and watch faces. But the kind of burrs on original 6-gears you'd have to run it at 29k RPM for days to remove enough material. Jeweler's files, a Dremel, metal polish and lots of time will clean up the gearbox teeth, not some magic break-in bullet. Trust me, I've tried everything over the last 27 years.

valve grinding compound. worked wonders for the gear diff in one of my sp-1's.

Valve grinding compound that is an awesome idea.

Eau Rouge wrote:

Charlie don't surf wrote:It will remove enamel, if you ran it at 29k rpm! its more abrasive than you think, one of the tricks to restoring old ( pre 77 ) Rolex watch lenses is AIM toothpaste and a soft cloth-

Oh I know... I have used it with great success on sunglasses and watch faces. But the kind of burrs on original 6-gears you'd have to run it at 29k RPM for days to remove enough material. Jeweler's files, a Dremel, metal polish and lots of time will clean up the gearbox teeth, not some magic break-in bullet. Trust me, I've tried everything over the last 27 years.

I never thought about it with 32p gears!! I was raised in the stealth era!!

I was more worried about the stealth when I posted this but all good info.