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Author Topic: Suspended bellcrank  (Read 178 times)
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mick66
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« on: May 05, 2019, 01:34:52 PM »

Hello

I've always used a nuts and bolts and washers and solder malarkey effort when creating hideous attempts at a bellcrank/mount.

Has anyone got any expericnce of using suspended bellcrank and how they are put together?

Bit of overkill for a Mercury Cobra but I thought I'd give it a go.

Cheers

 Mike
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TimWescott
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« Reply #1 on: May 05, 2019, 07:34:18 PM »

It's never overkill.  Here's how I did it in a Stirling S-1 Ringmaster.

Plywood bearers top & bottom.  In this one I used a #8 machine screw I had lying around because I could drill a 5/32" hole in the bellcrank and make it work nicely.  A more typical way is to use a bit of music wire with wheel collars to locate everything.

There's folks in the US who sell nice suspended bellcrank kits (Tom Morris comes to mind), but I don't know if anyone in the UK does.
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mick66
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« Reply #2 on: May 06, 2019, 01:52:19 AM »

Hi Tim

Thanks for the pic ... do you use the grub screws on the wheel collars or is it all just kind of free floating with fuel tube spacers?  Here's one I've mocked up.  Can't believe it's so straightforward, clean and simple. 

Cheers

Mike
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CajunFokker124
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« Reply #3 on: May 13, 2019, 04:10:58 PM »

Both examples work great!!

Sent from my SM-G965U using Tapatalk

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TimWescott
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« Reply #4 on: May 14, 2019, 06:51:50 PM »

I can't remember what I used for spacers (that picture is several years old), but everything floats between the plywood bearers.  I usually leave about 1/32" of slop in the up/down direction to minimize friction.
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