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Author Topic: My new reed valve engine testor  (Read 735 times)

Offline Paul Smith

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My new reed valve engine testor
« on: April 09, 2020, 06:43:16 PM »
Check this out.  It's a tight-fitting collar designed to fit a reed valve .049 or .020 and be secured with only two c-clamps.

It's laminated from two layers of 1/8" plywood with a 1/16" plywood on the back with cutout for the ears.

So I can cycle five Babe Bees and five PeeWees through the fixture without messing with tiny screws every time.
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Paul Smith

Offline Paul Smith

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Re: My new reed valve engine testor
« Reply #1 on: April 09, 2020, 06:45:04 PM »
Back view.

It's painted with 40-year-old K&B epoxy.

The eye bolt has been removed. It was just for painting.
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Paul Smith

Offline Dave Hull

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Re: My new reed valve engine testor
« Reply #2 on: April 11, 2020, 12:29:27 AM »
Nice idea. Clean. Not sure the clamps are big enough to provide real safety margin for a Cox .049 though. So you should put the eyebolt back in and attach some 1" chain to it. Maybe wrap that around your truck bumper a few times, or better yet, through the tow hooks. That would pass OSHA as long as you have certs and load test on the chain.

McDivot
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Offline john vlna

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Re: My new reed valve engine testor
« Reply #3 on: April 11, 2020, 01:37:47 PM »
Neat idea Paul, should save some time
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Offline Tim Wescott

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Re: My new reed valve engine testor
« Reply #4 on: April 11, 2020, 05:29:05 PM »
Nifty!

You could run 1/4-20 carriage bolts through the assembly from the back, and put the plywood piece on with wing nuts.  If you wanted to get fancy.
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Online 944_Jim

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Re: My new reed valve engine testor
« Reply #5 on: April 12, 2020, 10:33:35 AM »
Awesome! I may copy this just so I don't fight lots of littles screws.

Thanks for sharing.
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Offline david beazley

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Re: My new reed valve engine testor
« Reply #6 on: April 13, 2020, 11:30:37 AM »
Here's a link to one I built out of some aluminum, very similar concept
https://stunthanger.com/smf/12-a-building/reedy-test-stand/msg300103/#msg300103
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Offline Dane Martin

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Re: My new reed valve engine testor
« Reply #7 on: May 07, 2020, 08:19:52 AM »
Quote from: Dave Hull on April 11, 2020, 12:29:27 AM
Nice idea. Clean. Not sure the clamps are big enough to provide real safety margin for a Cox .049 though. So you should put the eyebolt back in and attach some 1" chain to it. Maybe wrap that around your truck bumper a few times, or better yet, through the tow hooks. That would pass OSHA as long as you have certs and load test on the chain.

McDivot

This is why I like you Dave. Always safety minded and considerate....
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