The Ford Barn

Fullraceflathead · 11-07-2016, 04:46 PM

Does anyone have the step by step article or instructions on making the necessary modifications to make the carburetor Air pressure balanced?

Synchro909 · 11-07-2016, 04:48 PM

If somebody with that Info sends it by PM, please include me.
I'd like to know too.

J Franklin · 11-07-2016, 04:49 PM

MAFCA magazine Restorer had that in one of their issues about 6 years ago if anybody has an index it could be found.

Brian T · 11-07-2016, 05:02 PM

Do a search for Air balancing Zenith carburetors, using a larger air cleaning is a way around the problem.

Benson · 11-07-2016, 07:50 PM

Chris Pelikan did a lot of research on the subject of the need for air balancing ... Here are his thoughts:

http://www.modela.org/filtering_air_into_carb.html

tbirdtbird · 11-07-2016, 08:14 PM

Sponsored Links (Register now to hide all advertisements)

it is quite simple and posted here before...Tom W just recently posted it about a month ago

Gary WA · 11-07-2016, 08:26 PM

Nov/Dec 1994 pg 17. The Restorer

Synchro909 · 11-07-2016, 09:16 PM

Quote:

Originally Posted by Gary WA

Nov/Dec 1994 pg 17. The Restorer

Won't load.

Gary WA · 11-07-2016, 09:31 PM

Quote:

Originally Posted by Synchro909

Won't load.

I just gave the reference on where to find it.

Y-Blockhead · 11-07-2016, 10:19 PM

Someone posted this picture a while back. You can see the vent hole is filled and the lower carb body and venturi are modified. I can only speculate that a 'port' is drilled in the body leading to the carb throat by the choke butterfly?

If I remember correctly this is how Renner's modifies the Zenith.

Tom Wesenberg · 11-07-2016, 10:42 PM

If I wanted to add a balance tube, I'd buy a thin brass tube from the hobby shop or hardware store that fits tight into the air vent hole. It only needs to be about 3/4" long. Then slip a piece of tubing over the brass pipe and have it enter anywhere between the choke plate and air filer. This way you can have a balanced carb for an air filter without doing any cutting or drilling to the carb.

11-07-2016, 04:46 PM	#1
Fullraceflathead Senior Member Join Date: May 2012 Location: Chillicothe, Missouri Posts: 1,176	Modifying Zenith for Air Balance Does anyone have the step by step article or instructions on making the necessary modifications to make the carburetor Air pressure balanced? __________________ "If I asked people what they wanted they would have said faster horses." -Henry Ford "Primitive technology is not a design flaw" 1928 Ford Model A Roadster Pickup 1930 Gordon Smith Air Compressor 1941 Willy's Pickup 1960 Thunderbird-For Sale 1964 Buick Riviera 2x4 425 1965 Pontiac GTO, 455 Super Duty 2004 Dodge Ram SRT-10, V-10 Viper 1977 Charger Jet Boat,460 Ford,Jacuzzi Jet Front Engine Nostalgia Dragster,Supercharged 296 "Fullrace Flathead" Ford Engine Build up on DVD ask

11-07-2016, 04:48 PM	#2
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 7,496	Re: Modifying Zenith for Air Balance If somebody with that Info sends it by PM, please include me. I'd like to know too. __________________ I'm part of the only ever generation with an analogue childhood and a digital adulthood.

11-07-2016, 04:49 PM	#3
J Franklin Senior Member Join Date: May 2010 Location: Oregon Posts: 5,963	Re: Modifying Zenith for Air Balance MAFCA magazine Restorer had that in one of their issues about 6 years ago if anybody has an index it could be found.

11-07-2016, 05:02 PM	#4
Brian T Senior Member Join Date: May 2010 Location: San Diego,Ca Posts: 1,377	Re: Modifying Zenith for Air Balance Do a search for Air balancing Zenith carburetors, using a larger air cleaning is a way around the problem. __________________ Nothing can be made foolproof, ---- fools are ingenious bastards.

11-07-2016, 07:50 PM	#5
Benson Senior Member Join Date: May 2010 Posts: 2,597	Re: Modifying Zenith for Air Balance Chris Pelikan did a lot of research on the subject of the need for air balancing ... Here are his thoughts: http://www.modela.org/filtering_air_into_carb.html

11-07-2016, 08:14 PM	#6
tbirdtbird BANNED Join Date: May 2012 Location: inside your RAM Posts: 3,134	Re: Modifying Zenith for Air Balance Sponsored Links (Register now to hide all advertisements) it is quite simple and posted here before...Tom W just recently posted it about a month ago __________________ '31 180A

11-07-2016, 08:26 PM	#7
Gary WA Senior Member Join Date: May 2010 Location: Clinton,WA/Whidbey Island Posts: 4,104	Re: Modifying Zenith for Air Balance Nov/Dec 1994 pg 17. The Restorer __________________ www.whidbeymodelaclub.com

11-07-2016, 10:19 PM	#10
Y-Blockhead Senior Member Join Date: Jul 2011 Location: Redondo Beach, CA Posts: 5,849	Re: Modifying Zenith for Air Balance Someone posted this picture a while back. You can see the vent hole is filled and the lower carb body and venturi are modified. I can only speculate that a 'port' is drilled in the body leading to the carb throat by the choke butterfly? If I remember correctly this is how Renner's modifies the Zenith.

11-07-2016, 10:42 PM	#11
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Modifying Zenith for Air Balance If I wanted to add a balance tube, I'd buy a thin brass tube from the hobby shop or hardware store that fits tight into the air vent hole. It only needs to be about 3/4" long. Then slip a piece of tubing over the brass pipe and have it enter anywhere between the choke plate and air filer. This way you can have a balanced carb for an air filter without doing any cutting or drilling to the carb.