Author Topic: Does anyone know the thread size / connector size for the AMAC carb bowl?  (Read 266 times)

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Offline Tim OConnor

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Does anyone know the thread size / connector size for the AMAC carb bowl?

Mine came with a rigged "adapter" and is leaking.

1920 2 3/4 W-20

Offline Hutch

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Hi Tim,

Looks like 9/16" (0.557") 26tpi Whitworth thread form to me on the one I have.

Hope this helps,

Cheers

Hutch

Offline Jonathan Hewitt

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Morning all, I have only last week cleaned out a nut to 9/16 x26tpi whit and that fits a treat ( pure luck I had a tap ). I bought a couple of nuts from PVN Racing Vincent,But they would not go on to the Douglas type amac bowl with the fitting integral with the bowl. However the pvn fitting would go on to the amac bowl I have with a screwed in fitting. I have asked Pvn what size he has made his threads but as yet have not heard back.
Hope this helps
Jonathan

Offline Tim OConnor

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thank you Hutch!

Jonathan, any sources for one other than possibly racing vincent?
1920 2 3/4 W-20

Offline Jonathan Hewitt

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Tim, can you not separate your rigged nut and use that
Jonathan

Offline Tim OConnor

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I think I have it working now, I made a mistake on the thread size.
1920 2 3/4 W-20