The Ford Barn

BrianBurkert · 12-08-2012, 10:43 PM

This belongs to a friend of mine. It doesn't seem to be in any of the authoritative carb and restoration books. Can anyone explain it?

He provided these notes:

SALIENT FEATURES:
Upper body marking – H raised*
Lower body marking – H raised*
Throttle plate – unmarked
Venturi dowel pin – steel
Double venturi
Secondary well – integral
GAV seat – brass
Assembly bolt head width – ½ inch
Assembly bolt head thickness – 9/16 inch
Float – 7.16 from hinge to solder line
Bowl vent – none
Idle air vent hole is 9/32 inch *Early Holley manufactured Zenith carburetors body marking letters were indented – later raised markings were from January to June 1929 and accompanied by “Zenith-2” on the float chamber exterior.
(Note: I have some other photos of some of the specific features.)

BrianBurkert · 12-08-2012, 10:48 PM

A couple more photos

Tom Wesenberg · 12-08-2012, 11:30 PM

The bowl vent is the hole closest to the double venturi. Nice looking carb.
Does the choke lever have a hole for a pull wire?

BrianBurkert · 12-08-2012, 11:40 PM

Looks to me like the choke lever has a hole for the wire. Some of the external hardware may have been replaced.

BrianBurkert · 12-09-2012, 12:01 AM

False alarm. It looks like this carb appears in the Judging Standards, page 1-14 (Rev. 2011). Sorry.

BrianBurkert · 12-09-2012, 11:46 AM

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My friend noted the lack of the boss under the GAV, as is shown in the photo of the Judging Standards. However, I think under the charts of carburetor features on the previous pages, this carburetor is covered under the Standards as "normal." There just isn't a photo of this particular variation. Anyone attempting to stump the Standards should be prepared to eat crow.

Carb Guy · 12-09-2012, 11:54 AM

The choke driver is made of brass which is an after market item, the original on these early carbs was pinned.

frank55a · 12-09-2012, 01:55 PM

What you have is NOT an odd ball carb it appears to be a mid 28 Holley double venturi carb. It is a fairly rare 28 Model a carb, made by Holley. While the 28 Model A carbs are generally all referred to as "Zenith" they were really Zenith design and they were made by Zenith and Holley.

12-08-2012, 11:30 PM	#3
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Oddball early (?) Holley (?) carburetor The bowl vent is the hole closest to the double venturi. Nice looking carb. Does the choke lever have a hole for a pull wire?

12-08-2012, 11:40 PM	#4
BrianBurkert Senior Member Join Date: Jun 2010 Location: Fleetwood, PA Posts: 420	Re: Oddball early (?) Holley (?) carburetor Looks to me like the choke lever has a hole for the wire. Some of the external hardware may have been replaced.

12-09-2012, 12:01 AM	#5
BrianBurkert Senior Member Join Date: Jun 2010 Location: Fleetwood, PA Posts: 420	Re: Oddball early (?) Holley (?) carburetor False alarm. It looks like this carb appears in the Judging Standards, page 1-14 (Rev. 2011). Sorry.

12-09-2012, 11:46 AM	#6
BrianBurkert Senior Member Join Date: Jun 2010 Location: Fleetwood, PA Posts: 420	Re: Oddball early (?) Holley (?) carburetor Sponsored Links (Register now to hide all advertisements) My friend noted the lack of the boss under the GAV, as is shown in the photo of the Judging Standards. However, I think under the charts of carburetor features on the previous pages, this carburetor is covered under the Standards as "normal." There just isn't a photo of this particular variation. Anyone attempting to stump the Standards should be prepared to eat crow.

12-09-2012, 11:54 AM	#7
Carb Guy Senior Member Join Date: May 2010 Location: Wisconsin Posts: 186	Re: Oddball early (?) Holley (?) carburetor The choke driver is made of brass which is an after market item, the original on these early carbs was pinned.

12-09-2012, 01:55 PM	#8
frank55a Senior Member Join Date: Jun 2010 Posts: 934	Re: Oddball early (?) Holley (?) carburetor What you have is NOT an odd ball carb it appears to be a mid 28 Holley double venturi carb. It is a fairly rare 28 Model a carb, made by Holley. While the 28 Model A carbs are generally all referred to as "Zenith" they were really Zenith design and they were made by Zenith and Holley.