Carb drain plug

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rikscubby
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Zip Code: 55123

Carb drain plug

Postby rikscubby » Sun Jan 05, 2020 5:09 pm

I’m about to reubuild my carb and wondering if I need to change the drain plug out? How does this plug come out?
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AFED3325-84D2-466E-BD05-0067F06E2434.jpeg
Cub carb drain plug

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Bill V in Md
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Re: Carb drain plug

Postby Bill V in Md » Sun Jan 05, 2020 5:18 pm

Original drain plugs were threaded.
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rikscubby
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Re: Carb drain plug

Postby rikscubby » Sun Jan 05, 2020 5:21 pm

Thanks Bill. From the pic you can see the metal was what appears to be pounded over it. Is that normal or best to leave as is and not change it out?

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Don McCombs
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Re: Carb drain plug

Postby Don McCombs » Sun Jan 05, 2020 5:31 pm

It is a felt disk that allows the throat area to drain if flooded. Just clean it with carb cleaner and leave it in place.
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Bill V in Md
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Re: Carb drain plug

Postby Bill V in Md » Sun Jan 05, 2020 6:47 pm

rikscubby wrote:Thanks Bill. From the pic you can see the metal was what appears to be pounded over it. Is that normal or best to leave as is and not change it out?

Sorry, I was referring to the drain plug on the right in your photo. Don has got you covered for the plug on the left of the photo.
Last edited by Bill V in Md on Sun Jan 05, 2020 7:47 pm, edited 1 time in total.
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Re: Carb drain plug

Postby Bob McCarty » Sun Jan 05, 2020 6:56 pm

The cupped washer with the hole was originally staked on four sides to keep it in place. You can see one mark at the bottom. If you must remove it (if you can see light through a hole in the felt), you'll need to cement it back in with JB or another epoxy. Almost impossible to restake. Do as Don said.
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Glen
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Re: Carb drain plug

Postby Glen » Sun Jan 05, 2020 7:57 pm

Hi,
Below is a pic from TM Tractor of the bottom of a Cub IH carburetor. You can see the staking marks at the round cover.
The hole has a filter material in it, and lets excess gas drain out, if gas gets into the air intake, like was said above. :)
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Cub carb 6.jpg

rikscubby
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Joined: Mon Aug 27, 2018 8:25 pm
Zip Code: 55123

Re: Carb drain plug

Postby rikscubby » Sun Jan 05, 2020 8:03 pm

Thank you all. Very helpful and it’s much appreciated!


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