The Ford Barn

shew01 · 05-27-2022, 10:06 AM

Firstly, I know LOTS of folks on this forum are totally against using air filters on Model A’s, and I respect that opinion. I don’t want to reignite any bad feelings about using air filters.

However, my car came with an air filter, it’s dirty, and I replaced it with Bratton’s part number 14700, which is substantially smaller than the filter that came on the car. If I recall correctly, the Snyder’s air filter is the same size as the Bratton’s air filter.

The filter that came on the car is 4-1/4” round by 5-5/8” tall. Does anyone know of an alternative part number and/or a supplier for this size? Maybe Rural King, AutoZone, etc.?

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Oldgearz · 05-27-2022, 10:47 AM

It can be really difficult to find replacement filters for some of the old ones that were used. I gave up and continue to clean the one I have.

jeepguy1948 · 05-27-2022, 10:49 AM

I felt very strongly that my motor should have an air filter so I installed one. The filter resistance (slight as it is) is enough to cause a rich condition. I had a h**l of a time because I would not accept that the filter was the problem. The problem is that the Zenith is not "balanced" like other carbs. It is a pretty complicated process to do that so I gave up, I'm not using a filter. If yours is not causing problem then I would have to guess that either the carb has been altered or possibly smaller jets were installed? That is an idea that I did not pursue.

shew01 · 05-27-2022, 10:58 AM

Quote:

Originally Posted by Oldgearz

It can be really difficult to find replacement filters for some of the old ones that were used. I gave up and continue to clean the one I have.

Hmmm… How do you clean it?

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shew01 · 05-27-2022, 11:00 AM

Quote:

Originally Posted by '28 RPU

I felt very strongly that my motor should have an air filter so I installed one. The filter resistance (slight as it is) is enough to cause a rich condition. I had a h**l of a time because I would not accept that the filter was the problem. The problem is that the Zenith is not "balanced" like other carbs. It is a pretty complicated process to do that so I gave up, I'm not using a filter. If yours is not causing problem then I would have to guess that either the carb has been altered or possibly smaller jets were installed? That is an idea that I did not pursue.

I don’t know if the carburetor has been modified or not. It runs great, and the plugs were nice and tan when I checked them a few days ago.

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katy · 05-27-2022, 11:07 AM

Sponsored Links (Register now to hide all advertisements)

Is that a "high boy" air filter?

Sunny the Model A · 05-27-2022, 01:03 PM

I use a high flow air filter from smith and jones, bone stock carb and it runs fine, no problems to report. if you want an air filter that doesn't require messing with the carb, get the high flow filter that slings under the carb. Just turn down the mix knob a tad if it needs it.

Bill Cilker · 05-27-2022, 07:55 PM

Shew
Here is what I have used for over 30 years. it is a Fram CA 218, Wix 42003, or NAPA 2003. I cut off the top metal cover just at the edge of the cover. Then you need to drill a hole in the bottom plate. Then you need a piece of threaded rod to screw into the Air Mase head and it should be lock nutted. Slip the air filter on and the top should slide into the AM head. put a nut on to hold the filter on and cut off the rest of the threaded rod. It is long and looks like the wishbone will hit it, but I have never had them hit.

30Murray · 05-27-2022, 09:23 PM

Go to K&N website and search by dimension. I use one in a similar arrangement to Bill and it does not run rich.

shew01 · 05-28-2022, 06:49 AM

I double checked the Snyder's site, and I found a surprise. They do stock the smaller A-9600-F filter as I recalled.

https://www.snydersantiqueauto.com/p...9486&cat=41659

But, they also have a larger A-9600-HV filter as well, which is roughly the same size as the one that came on my car.

https://www.snydersantiqueauto.com/p...9490&cat=41659

And, they stock a high volume adapter kit (A-9600-ADP) that can be used to convert your car from the small filter configuration to the large filter configuration.

https://www.snydersantiqueauto.com/p...9485&cat=41659

Y-Blockhead · 05-28-2022, 09:14 AM

I use a K & N E-9057 air filter. I have used it on Zenith and Marvel carburetors without any issues. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

05-27-2022, 10:06 AM	#1
shew01 Senior Member Join Date: Sep 2016 Location: Roanoke, VA USA Posts: 1,908	Alternative Air Filter Replacement Firstly, I know LOTS of folks on this forum are totally against using air filters on Model A’s, and I respect that opinion. I don’t want to reignite any bad feelings about using air filters. However, my car came with an air filter, it’s dirty, and I replaced it with Bratton’s part number 14700, which is substantially smaller than the filter that came on the car. If I recall correctly, the Snyder’s air filter is the same size as the Bratton’s air filter. The filter that came on the car is 4-1/4” round by 5-5/8” tall. Does anyone know of an alternative part number and/or a supplier for this size? Maybe Rural King, AutoZone, etc.? Sent from my iPhone using Tapatalk

05-27-2022, 10:47 AM	#2
Oldgearz Senior Member Join Date: Aug 2020 Location: Sagle, Idaho Posts: 359	Re: Alternative Air Filter Replacement It can be really difficult to find replacement filters for some of the old ones that were used. I gave up and continue to clean the one I have.

05-27-2022, 10:49 AM	#3
jeepguy1948 Senior Member Join Date: Jan 2022 Posts: 721	Re: Alternative Air Filter Replacement I felt very strongly that my motor should have an air filter so I installed one. The filter resistance (slight as it is) is enough to cause a rich condition. I had a h**l of a time because I would not accept that the filter was the problem. The problem is that the Zenith is not "balanced" like other carbs. It is a pretty complicated process to do that so I gave up, I'm not using a filter. If yours is not causing problem then I would have to guess that either the carb has been altered or possibly smaller jets were installed? That is an idea that I did not pursue.

05-27-2022, 11:07 AM	#6
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,046	Re: Alternative Air Filter Replacement Sponsored Links (Register now to hide all advertisements) Is that a "high boy" air filter? __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!

05-27-2022, 01:03 PM	#7
Sunny the Model A Senior Member Join Date: Jul 2021 Location: Charleston SC Posts: 169	Re: Alternative Air Filter Replacement I use a high flow air filter from smith and jones, bone stock carb and it runs fine, no problems to report. if you want an air filter that doesn't require messing with the carb, get the high flow filter that slings under the carb. Just turn down the mix knob a tad if it needs it. __________________ "Quality means doing it right when no one is looking" Henry Ford

05-27-2022, 09:23 PM	#9
30Murray Senior Member Join Date: Jun 2010 Location: Vancouver B.C. Posts: 111	Re: Alternative Air Filter Replacement Go to K&N website and search by dimension. I use one in a similar arrangement to Bill and it does not run rich.

05-28-2022, 06:49 AM	#10
shew01 Senior Member Join Date: Sep 2016 Location: Roanoke, VA USA Posts: 1,908	Re: Alternative Air Filter Replacement I double checked the Snyder's site, and I found a surprise. They do stock the smaller A-9600-F filter as I recalled. https://www.snydersantiqueauto.com/p...9486&cat=41659 But, they also have a larger A-9600-HV filter as well, which is roughly the same size as the one that came on my car. https://www.snydersantiqueauto.com/p...9490&cat=41659 And, they stock a high volume adapter kit (A-9600-ADP) that can be used to convert your car from the small filter configuration to the large filter configuration. https://www.snydersantiqueauto.com/p...9485&cat=41659