wanted: tire for presto k-series

[Jesus H Chrysler]

mine has somehow gotten out of round (swollen?, stretched? ) since yesterday and now I can't get it to run without serious warbling and I've got about 90 records to cut in the next week.

Anyone got a spare? or an idea how to make my old one work? I'm open to crazy ideas.

[markrob]

Hi,

If you want to DIY it and have acess to a metal lathe, you can turn the idler down so that is it round again. Then you can find a suitable o-ring to slip over and glue to the trued up surface. If possible, form "U" a channel in the rubber for the o-ring to sit in. Finally, turn this to the correct diameter. Typically, A tool post grinder is the best way to machine rubber, but you can get away with a standard cutting tool.

If you don't want to go this way, there are people who can re-build the idler. Here are two that come to mind.

http://www.vintagelectronics.com/Rebuild.htm

http://www.west-techservices.com/p7.htm

I'd call them and see if they have any experience with the Presto idlers.

Mark

[Prestofan]

Try removing the tire from the turntable - give it one twist - so is now iside-out. Put back on turntable and stretch as you go a little to get the "bumps' out.

Alan

[Jesus H Chrysler]

got it sorted. thanks for your replies.

[Simon]

So how did you do it in the end.

[Jesus H Chrysler]

I flipped it first, but it still had a warble so i sanded the high part down with some 400 grit sandpaper. It still has a very subtle speed wobble according to the strobe disc (speeds up for 1/3 of the rotation), but its less wobble than most of my turntables have so I call it a win.