fuel line?

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fuel line?

Postby dickcub50 » Mon Jan 14, 2013 7:28 pm

What is the correct threads for the carb. inlet and the
fuel sediment bowl? I picked up several items and PO
must have used anything close. Hope to salvage some
items. Not just for parts.
Can a heilcoil be inserted?
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Re: fuel line?

Postby Barnyard » Mon Jan 14, 2013 7:38 pm

1/2-20 is the correct size, but some people will thread in a fitting that is pipe thread and booger them up. They can be drilled and helicoiled.
Last edited by Barnyard on Mon Jan 14, 2013 7:49 pm, edited 1 time in total.
Reason: Correct misinformation
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Re: fuel line?

Postby Bob McCarty » Mon Jan 14, 2013 7:45 pm

1/2-20 is the correct size. Bill, you must be thinking about implement holes. :D

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Re: fuel line?

Postby Barnyard » Mon Jan 14, 2013 7:48 pm

Bob McCarty wrote:1/2-20 is the correct size. Bill, you must be thinking about implement holes. :D

Bob

Yes, I pulled it up and read across the wrong line. So much for that new eye. :oops:

I better edit my post so nobody reads my reply and goes no farther.
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Re: fuel line?

Postby dickcub50 » Mon Jan 14, 2013 7:50 pm

Thanks for the info,now I can try to salvage some items.
Some are parts only. When you get a box unseen, you
hope for the best.
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Re: fuel line?

Postby Bob McCarty » Mon Jan 14, 2013 8:15 pm

There is a pilot guide that was designed by Rick Prentice to center and guide an end drill prior to tapping for a helicoil. Without one you may have a hard time getting a straight hole. If you were in the midwest or east, I'm sure you could borrow one, or have the helicoil done at a Cubfest. The fitting that stripped the threads was likely 1/4" NPT. Edelmann makes this fitting (168540) which can be used if you aren't concerned about correctness. Image (photo from Plews-Edelmann website)

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Re: fuel line?

Postby Buzzard Wing » Mon Jan 14, 2013 10:51 pm

For the line itself, standard 5/16" brake line works and they come with fittings. But you will need a couple of ferrules.

Lots of good info around, try a search. (it's a 'popular' topic).
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Re: fuel line?

Postby Yogie » Mon Jan 14, 2013 11:00 pm

When seating the new ferrules use a different fitting and not the carb inlet. Those carb threads seem the be soft and a lot of them are stripped out that way.
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