Holly G Carburetors

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Topic author
Ron Patterson

Holly G Carburetors

Post by Ron Patterson » Fri Dec 15, 2023 6:24 pm

I am trying to better understand Holly G carburetors (1914-1919) and which version is correct for various year car from 1914 to 1919.
Please only post photos of Holly G carbs showing (a shot directly into air inlet mouth, directly into the fuel mixture outlet, both right and left sides of the carb showing complete details of choke lever and throttle levers. Photos of any unique features.
Here is where I am going with this.
I recently bought a 1915 Runabout and am trying to make, install and use a period correct (per Ford factory drawings) choke pull rod, I made one from these drawing and it wont fit (now, I an on a mission to know why. I understand there were many changes to G carbs over the years for non starter/starter equipped Model T's. .
Photo's and your comments and complete commentsa surrounding what you posted.

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RajoRacer
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Re: Holly G Carburetors

Post by RajoRacer » Fri Dec 15, 2023 6:29 pm

Ron - perhaps you could post a few photos of your G & those of us that are familiar with that carburetor can offer assistance to your endeavor.


Topic author
Ron Patterson

Re: Holly G Carburetors

Post by Ron Patterson » Fri Dec 15, 2023 7:31 pm

Thanks to Mark Eyre I beleive the attached photo is of the first version of the the early Holly G Carb.
Notice it is shrter in length from later G''s and would explain why my correct choke pull rod is too short for the later G?
Early Holly G Carb.jpg


Topic author
Ron Patterson

Re: Holly G Carburetors

Post by Ron Patterson » Fri Dec 15, 2023 7:54 pm

I am looking for two of the Holly G Carbs EXACTALLY like shown in my post above.
If anyone has one for sale please let me know? Perhaps we can work a del on some rebuilt coils?
Ron the Coilman

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Corey Walker
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Re: Holly G Carburetors

Post by Corey Walker » Fri Dec 15, 2023 8:07 pm

The Holley G you have pictured with the ring around the air horn is a bit shorter. The other brass and cast iron G’s are the same length. These are all the Holleys from 1912-1919.
The choke arms are all the same length.
Attachments
7B16B30D-48FF-4FB4-A46B-A69215180639.jpeg
8346CB8B-F712-4A1B-89CC-D077CB1A67C4.jpeg
Corey Walker, Brownsboro, Texas

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Corey Walker
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Re: Holly G Carburetors

Post by Corey Walker » Fri Dec 15, 2023 8:35 pm

The shorter G is the same length as the NH.
Hard to tell because of the perspective but the long arm NH choke arm is the same length as the G.
Attachments
9EE9C6C6-5D22-4AF5-88C3-B2FC7B4F05FD.jpeg
E66AB1BF-E26D-42AA-BF39-FFD5079C3865.jpeg
Corey Walker, Brownsboro, Texas


Topic author
Ron Patterson

Re: Holly G Carburetors

Post by Ron Patterson » Sat Dec 16, 2023 9:59 am

Corey
Thanks for the photos. Can you tell me the difference in height between the early and later Holly G carb.
The great information you supplid and my discussions with Mark Eyre's and information he brought to my attention shown in Bruce McCalley's book help clearly explains waht was giving me so much trouble with making a choke pull rod for my 1915 Runabout.
Little did I know wha the simple task of making a choke pull rod would lead.
Ron Patterson

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Corey Walker
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Re: Holly G Carburetors

Post by Corey Walker » Sat Dec 16, 2023 11:41 am

There’s 3/16” difference in height but the choke shafts are in the exact same location.
Attachments
7844265B-8F4F-4BDC-B25B-50002A991DEF.jpeg
Corey Walker, Brownsboro, Texas

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