Reed me.........Please

rsv1cox Sun Sep 22, 2024 7:42 am

One of my Cox chainsaws is missing a reed. It might has well be both as it won't run with just one. I thought someone here with the manual dexterity that I no longer have might be able to make me one out of a floppy disk or some other material? If someone is up to it, I'm sure I have an engine of your liking to trade for services.

Doesn't look to be easy.........Sorry, I can't find either my calipers or my micrometer. Thickness is the same as what you would find in a Babe Bee. Perhaps a shade thicker.

It goes in this little jewel.

rdw777 Sun Sep 22, 2024 8:58 am

Hi Bob, I’ll give a shot…..I think I have some floppy disk material… We’ll have check to see if it will stand up to gasoline…. Good photos and alignments Very Happy

roddie Sun Sep 22, 2024 9:14 am

rdw777 wrote:Hi Bob, I’ll give a shot…..I think I have some floppy disk material… We’ll have check to see if it will stand up to gasoline…. Good photos and alignments

If not.. it seems to me that I've seen parts of electrical switches (or circuit breakers?) that use thin annealed copper contacts that might be large enough to make one..

rdw777 Sun Sep 22, 2024 10:53 am

Old relays and contactors have some interesting material in them Roddie…. Will keep that in mind Very Happy

KariFS Sun Sep 22, 2024 12:55 pm

There is a ”proper”, or should I say ”bespoke” material available for making reed valves:

https://www.puchshop.de/en-gb/malossi-membrane-sheets-carbonit.html?gad_source=1&gbraid=0AAAAAD02mw3P-4b5nARi-XQDwcZ8hYDFO&gclid=EAIaIQobChMIqfin-o7XiAMVAEGRBR0R0xmiEAQYAyABEgK9o_D_BwE

The link is to a moped tuning shop in Europe, but most likely these are available in the USA too.

(Googled ”reed valve material” Wink

)

gkamysz Sun Sep 22, 2024 2:03 pm

I suspect floppy disk material is too thin for a reed that size. This wouldn't be annealed copper, but spring temper beryllium copper.

rsv1cox Sun Sep 22, 2024 2:03 pm

Thanks guys!!

I found my calipers - mm's mostly -/+

Just for fun. Big difference - Edit add

rdw777 Sun Sep 22, 2024 2:41 pm

I made a brass one first to use as a pattern ….Then traced it out on to floppy disc material…. The floppy disc is .004” thick so yes, Maybe a little thin but worth a try…. I’ll make a couple more then send them to you…. I’ll hang on to the pattern in case the size needs to be tweaked or we need to find a better material….

rsv1cox Sun Sep 22, 2024 3:48 pm

In just a few hours...................? Amazing Robert. Amazing! Thanks

rdw777 Mon Sep 23, 2024 9:27 am

You bet!, They’ll be on their way today Thumbs Up

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Reed me.........Please

Reed me.........Please

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Re: Reed me.........Please

Re: Reed me.........Please

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Re: Reed me.........Please

Re: Reed me.........Please