What to shim a spinner backplate with?

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Sisyphus - 25 May 2004 14:37 GMT

I am trying to install a different spinner which has nuts and
extrusions that form an overhang that sits rearward of the ?flywheel?
by about 1/8 of an inch. Because of the original spinner plate being
flush with the flywheel, the new spinner backplate rubs the front of
the cowling.

Has anyone succesfully installed a shim between the flywheel and the
spinner backplate before? Perhaps there is plastic washer available
that will fit- but will it hold?

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RedFred1 - 25 May 2004 15:00 GMT

>Has anyone succesfully installed a shim between the flywheel and the
>spinner backplate before? Perhaps there is plastic washer available
>that will fit- but will it hold?

Your easiest fix and best bet is to go get a spinner that has a flat backing as
your old one did. I had a similar problem with my SuperTiger engine, the nut
holders were too close together for the "flywheel" or rear drive washer to fit
between...easiest fix was to get a new spinner. One of the brands (Goldberg?)
has a flat plate. Dubro, I think, has the recessed plate.

Anyway - good luck with it...

FredD

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Sisyphus - 25 May 2004 19:39 GMT

Thanks Fred! Does Goldberg have a 3 blader?

> >Has anyone succesfully installed a shim between the flywheel and the
> >spinner backplate before? Perhaps there is plastic washer available
[quoted text clipped - 9 lines]
>
> FredD

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RedFred1 - 25 May 2004 23:02 GMT

>Thanks Fred! Does Goldberg have a 3 blader?

You could check here...

http://www.towerhobbies.com/listings/cat-cat-q.html

J&Z make some nice ones with a metal backplate...

FredD

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Sisyphus - 27 May 2004 16:36 GMT

Thanks

> >Thanks Fred! Does Goldberg have a 3 blader?
>
[quoted text clipped - 5 lines]
>
> FredD

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Martin X. Moleski, SJ - 26 May 2004 00:22 GMT

>Has anyone succesfully installed a shim between the flywheel and the
>spinner backplate before?

I'm using a homemade washer from soft aluminum to ... uh ...
make up for a slight miscalculation I made when building the
nose of my UltraSport 1000.

About 15 flights and no problems so far.

MVVS 1.6 gas engine with a tuned pipe.

With the electronic ignition, I don't expect any backfires.
So far in about 65 flights with this or a similar setup, I haven't
had any.

YMMV.
Marty

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Sisyphus - 27 May 2004 16:37 GMT

Thanks for this information Martin.

> >Has anyone succesfully installed a shim between the flywheel and the
> >spinner backplate before?
[quoted text clipped - 13 lines]
> YMMV.
> Marty

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Model Forum / Radio Controlled / Air Models / May 2004

What to shim a spinner backplate with?