The Ford Barn

Conaway2 · 10-31-2019, 10:38 PM

’ve used the Air Maze filter for almost 30 years - recently replaced the ‘screen’ filter element for a real paper air filter. The rebuilt engine was installed in March, carb rebuilt a couple of months ago - engine runs very well. I can turn the GAV off and the engine begins to stumble, so I believe at 1/4 turn of the GAV out, the engine is getting a pretty reasonable mix of gas/air.

However, I changed spark plugs a couple days ago - swapped some Motorcraft pugs from Bratton’s (since March) for a set of Champion 3Xs and noticed that the Motorcraft plugs had quite a bit of carbon on them, I wondered if the air filter was making the fuel mix too rich. I;ve read about this, and wonder if I need to do something to the Zenith carb to compensate for the air filter.

thoughts ??

thanks - Jim

redmodelt · 10-31-2019, 10:45 PM

Get rid of the paper element and put the screen back on. The paper element is a fire hazard. If it worked for 30 years why change it?

WHN · 11-02-2019, 08:14 AM

Quote:

Originally Posted by redmodelt

Get rid of the paper element and put the screen back on. The paper element is a fire hazard. If it worked for 30 years why change it?

I would take this advise ASAP.

Ours has been on for over 40 years. No problems.

1/4 turn is also really good sign. Enjoy.

al's28/33 · 10-31-2019, 10:47 PM

I agree, if you run an air-maze the use the wire screen DO NOT USE PAPER

30 Closed Cab PU · 11-01-2019, 01:06 PM

Or use a High Boy adapter with a K and N filter. If you do not care about looks, or are a purist, is an option

160B · 11-01-2019, 01:20 PM

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eagle · 11-01-2019, 04:20 PM

I've used an AirMaze for years. Plugs look great. I use a fiber mesh filter over the top of the AirMaze and use oil on the screen. I use about 1/4 turn GAV except when highway cruising. Then its maybe 1/8 open or less.

Bob Bidonde · 11-02-2019, 08:08 AM

Anything you put at the inlet of the carburetor is going to reduce the inlet air flow, and reduce engine power.

Jimczeb · 02-23-2024, 09:46 AM

how do i install the maze filter on my model A. any pictures available? do i need a rubber gasket?

Y-Blockhead · 02-23-2024, 09:59 AM

Quote:

Originally Posted by Jimczeb

how do i install the maze filter on my model A. any pictures available? do i need a rubber gasket?

Just tighten the screw. https://www.snydersantiqueauto.com/p...9483&cat=41659

10-31-2019, 10:38 PM	#1
Conaway2 Senior Member Join Date: Apr 2019 Location: Mt. Pleasant, SC Posts: 601	Air Maze Air Filter on Zenith Carb Question ’ve used the Air Maze filter for almost 30 years - recently replaced the ‘screen’ filter element for a real paper air filter. The rebuilt engine was installed in March, carb rebuilt a couple of months ago - engine runs very well. I can turn the GAV off and the engine begins to stumble, so I believe at 1/4 turn of the GAV out, the engine is getting a pretty reasonable mix of gas/air. However, I changed spark plugs a couple days ago - swapped some Motorcraft pugs from Bratton’s (since March) for a set of Champion 3Xs and noticed that the Motorcraft plugs had quite a bit of carbon on them, I wondered if the air filter was making the fuel mix too rich. I;ve read about this, and wonder if I need to do something to the Zenith carb to compensate for the air filter. thoughts ?? thanks - Jim

10-31-2019, 10:45 PM	#2
redmodelt Senior Member Join Date: May 2010 Location: Portland OR Posts: 6,342	Re: Air Maze Air Filter on Zenith Carb Question Get rid of the paper element and put the screen back on. The paper element is a fire hazard. If it worked for 30 years why change it? __________________ I know the voices aren't real but damn they have some good ideas!

10-31-2019, 10:47 PM	#4
al's28/33 Senior Member Join Date: Jun 2010 Location: Redwood City, CA Posts: 1,591	Re: Air Maze Air Filter on Zenith Carb Question I agree, if you run an air-maze the use the wire screen DO NOT USE PAPER __________________ 1928 "A" Phaeton (mid year with many early features) 1933 "V8" Closed-Cab Pickup Truck (originally a Model B, 4 Cylinder dating to May, 1933)

11-01-2019, 01:06 PM	#5
30 Closed Cab PU Senior Member Join Date: Aug 2018 Posts: 2,332	Re: Air Maze Air Filter on Zenith Carb Question Or use a High Boy adapter with a K and N filter. If you do not care about looks, or are a purist, is an option

11-01-2019, 01:20 PM	#6
160B Senior Member Join Date: Aug 2010 Location: Port Orchard, WA Posts: 1,498	Re: Air Maze Air Filter on Zenith Carb Question Sponsored Links (Register now to hide all advertisements) Below is a list of all the posts on air filters https://www.fordbarn.com/forum/showthread.php?t=250309 250309 https://www.fordbarn.com/forum/showthread.php?t=239089 239089 https://www.fordbarn.com/forum/showthread.php?t=221751 221751 https://www.fordbarn.com/forum/showthread.php?t=221691 221691 https://www.fordbarn.com/forum/showthread.php?t=216058 216058 https://www.fordbarn.com/forum/showthread.php?t=211210 211210 https://www.fordbarn.com/forum/showthread.php?t=209923 209923 https://www.fordbarn.com/forum/showthread.php?t=205402 205402 https://www.fordbarn.com/forum/showthread.php?t=142838 142838 https://www.fordbarn.com/forum/showthread.php?t=142421 142421 https://www.fordbarn.com/forum/showthread.php?t=119231 119231 https://www.fordbarn.com/forum/showthread.php?t=119203 119203 https://www.fordbarn.com/forum/showthread.php?t=108962 108962 https://www.fordbarn.com/forum/showthread.php?t=95961 95961 https://www.fordbarn.com/forum/showthread.php?t=81888 81888 https://www.fordbarn.com/forum/showthread.php?t=77165 77165 __________________ 1931 160B & 1931 68B If you don't have time to do it right the 1st time, how do you have time to do it the 2nd time?

11-01-2019, 04:20 PM	#7
eagle Senior Member Join Date: Aug 2011 Location: Eagle Bend, MN Posts: 2,026	Re: Air Maze Air Filter on Zenith Carb Question I've used an AirMaze for years. Plugs look great. I use a fiber mesh filter over the top of the AirMaze and use oil on the screen. I use about 1/4 turn GAV except when highway cruising. Then its maybe 1/8 open or less. __________________ "There are some that can destroy an anvil with a teaspoon and shouldn't be allowed to touch anything resembling a tool."

11-02-2019, 08:08 AM	#8
Bob Bidonde Senior Member Join Date: May 2010 Location: Long Island, NY Posts: 3,472	Re: Air Maze Air Filter on Zenith Carb Question Anything you put at the inlet of the carburetor is going to reduce the inlet air flow, and reduce engine power. __________________ Bob Bidonde

02-23-2024, 09:46 AM	#9
Jimczeb Junior Member Join Date: Feb 2024 Posts: 6	Re: Air Maze Air Filter on Zenith Carb Question how do i install the maze filter on my model A. any pictures available? do i need a rubber gasket?