The Ford Barn

Larry H · 10-03-2012, 09:49 AM

I am having my engine rebuilt and it has a Model B carb on it. I am looking for a air cleaner that fits the B carb. It has a larger intake than the regular Zenith carb for A's. I located one from a supplier but it is a tall stack type and I want one like the Air Maze's that are sold. Any idea's??

Jerry in Shasta · 10-03-2012, 10:41 AM

Synders,or Brattons sell a "U" shape fitting that puts the filter underneath the carb.
I think it comes either A or B size.

JB

Jim/GA · 10-03-2012, 11:16 AM

Unless your B carb is pressure balanced, I think adding the restriction of an air filter will screw up your running mixture and you will not be happy. Your plugs will foul and your MPG will go down.

If your carb is pressure balanced, you can make a filter mount for a stock Air Maze type filter with a 2" copper "street elbow" used in plumbing (not cheap). The larger side of the elbow goes on the carb, the smaller end fits perfectly on the air maze top. I got this idea from someone else on the FB (I forget who or I would give them credit).

The elbow, as you buy it, will be too long on both runners (compared to the original air maze elbow). You can cut the excess off with a band saw or put it in a lathe and cut it off very cleanly. The larger end needs to have 8 slots cut in it so that a hose clamp can squeeze the copper down against the cast iron B carb inlet to hold it tightly.

If you bead blast the copper and paint it with dull aluminum paint, it looks like the aluminum elbow that the air maze normally mounts with.

Sorry, I don't have a picture of mine handy.

I suppose you could join 2 such elbows and put one of the larger K&N-type permanent mesh filters under the carb. Even without a pressure balanced carb, it would probably run OK. I prefer the look of the original air maze filter. I know it only filters out the big bugs!

Larry H · 10-04-2012, 08:02 AM

Thanks, for the replies it give me a couple of ideas

glenn in camino · 10-04-2012, 09:48 AM

I have the K&N under the carburetor. I have not noticed any difference in how the engine runs. I feel a lot better on dirt roads knowing I'm not sucking dirt into my new engine.

Duffy1 · 10-04-2012, 10:57 PM

Sponsored Links (Register now to hide all advertisements)

How about the high boy filter Snyder sells. Do you have to change anything to a Zenith Carb if you use this filter . Is this an actual filter or is it like an air maze .

Richard Lorenz · 10-05-2012, 08:37 AM

As long as your GAV control "best setting" is in the normal range, you do not need a pressure-balanced carburetor.

10-03-2012, 09:49 AM	#1
Larry H Junior Member Join Date: Sep 2012 Location: Warsaw, Indiana Posts: 4	Model B Carb I am having my engine rebuilt and it has a Model B carb on it. I am looking for a air cleaner that fits the B carb. It has a larger intake than the regular Zenith carb for A's. I located one from a supplier but it is a tall stack type and I want one like the Air Maze's that are sold. Any idea's??

10-03-2012, 10:41 AM	#2
Jerry in Shasta Senior Member Join Date: Jun 2010 Location: (Old)Shasta (Redding) CA Posts: 385	Re: Model B Carb Synders,or Brattons sell a "U" shape fitting that puts the filter underneath the carb. I think it comes either A or B size. JB

10-03-2012, 11:16 AM	#3
Jim/GA Senior Member Join Date: May 2010 Location: Young Harris, GA Posts: 1,821	Re: Model B Carb Unless your B carb is pressure balanced, I think adding the restriction of an air filter will screw up your running mixture and you will not be happy. Your plugs will foul and your MPG will go down. If your carb is pressure balanced, you can make a filter mount for a stock Air Maze type filter with a 2" copper "street elbow" used in plumbing (not cheap). The larger side of the elbow goes on the carb, the smaller end fits perfectly on the air maze top. I got this idea from someone else on the FB (I forget who or I would give them credit). The elbow, as you buy it, will be too long on both runners (compared to the original air maze elbow). You can cut the excess off with a band saw or put it in a lathe and cut it off very cleanly. The larger end needs to have 8 slots cut in it so that a hose clamp can squeeze the copper down against the cast iron B carb inlet to hold it tightly. If you bead blast the copper and paint it with dull aluminum paint, it looks like the aluminum elbow that the air maze normally mounts with. Sorry, I don't have a picture of mine handy. I suppose you could join 2 such elbows and put one of the larger K&N-type permanent mesh filters under the carb. Even without a pressure balanced carb, it would probably run OK. I prefer the look of the original air maze filter. I know it only filters out the big bugs! __________________ Jim Cannon Former MAFCA Technical Director "Have a Model A day!" Last edited by Jim/TX; 10-04-2012 at 09:29 AM.

10-04-2012, 08:02 AM	#4
Larry H Junior Member Join Date: Sep 2012 Location: Warsaw, Indiana Posts: 4	Re: Model B Carb Thanks, for the replies it give me a couple of ideas

10-04-2012, 09:48 AM	#5
glenn in camino Senior Member Join Date: May 2010 Location: Camino, CA. Posts: 3,086	Re: Model B Carb I have the K&N under the carburetor. I have not noticed any difference in how the engine runs. I feel a lot better on dirt roads knowing I'm not sucking dirt into my new engine.

10-04-2012, 10:57 PM	#6
Duffy1 Senior Member Join Date: May 2012 Location: Mo. City , Texas Posts: 725	Re: Model B Carb Sponsored Links (Register now to hide all advertisements) How about the high boy filter Snyder sells. Do you have to change anything to a Zenith Carb if you use this filter . Is this an actual filter or is it like an air maze .

10-05-2012, 08:37 AM	#7
Richard Lorenz Senior Member Join Date: May 2010 Posts: 447	Re: Model B Carb As long as your GAV control "best setting" is in the normal range, you do not need a pressure-balanced carburetor.