Sure fire way to fit slipping pinion onto motor shaft??

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MWC - 23 Sep 2006 23:57 GMT

Well I'm struggling with this one....It's a 480 motor, metal shaft
(obviously), but a plastic pinion. The pinion is not a very tight fit
on the shaft to start with (wear?), so it slips like crazy when I open
the throttle. I've tried cyano and epoxy but no joy. If it was a metal
pinion I'm sure I could collet it onto the shaft, but it's plastic so I
can't.
Anyone have any suggestions?
cheers
Phil

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Malcolm Fisher - 24 Sep 2006 21:07 GMT

> Well I'm struggling with this one....It's a 480 motor, metal shaft
> (obviously), but a plastic pinion. The pinion is not a very tight fit
[quoted text clipped - 5 lines]
> cheers
> Phil

I don't really know if this would work, but silicone sealant seems to stick
like the proverbial.

Try degreasing the shaft, give it a rub with a Scotchbrite pad, fillthe
pinion with sealant and push it into place. Leave ast least 24 hours to cure
nd see what happens.

HTH

Malcolm

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olddog - 24 Sep 2006 23:25 GMT

try a new brass pinion with blue locktight, that'll fix it. They cost all of
£2.50.

>> Well I'm struggling with this one....It's a 480 motor, metal shaft
>> (obviously), but a plastic pinion. The pinion is not a very tight fit
[quoted text clipped - 18 lines]
>
> Malcolm

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Model Forum / Radio Controlled / Air Models / September 2006

Sure fire way to fit slipping pinion onto motor shaft??