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07-17-2011, 11:31 AM | #1 |
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Is an air filter needed ?
Is an air filter needed on these engines ? Originally they did not have one , am I correct ..
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07-17-2011, 11:42 AM | #2 |
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Re: Is an air filter needed ?
No they are not needed
mike |
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07-17-2011, 11:46 AM | #3 |
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Re: Is an air filter needed ?
Might as well take the ones off our modern rigs also since air filters are not needed.
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07-17-2011, 11:49 AM | #4 |
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Re: Is an air filter needed ?
They will help your engine to last longer. without you get dirt and sand in your engine. This also gets in your valve and pistons. Will make your engine wear out faster.
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07-17-2011, 12:05 PM | #5 |
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Re: Is an air filter needed ?
I run a Air maze type of filter. Its not fram quality by any means but it should keep out the big stuff and also it services as a spark arestor in case of a back fire when the engine pan might have some fuel laying on it. The filter part Its not much more than 2-3 layers of window screen and is made of metal not paper, can't have very much air restriction.
CARBURETOR AIR MAZE For Year(s): 28-31 This was a Ford approved accessory beginning in Sept. ’29. It is used as a fire arrester and air filter. ID is 1 7/8" for carburetor. Will only fit Zenith Carburetors.
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07-17-2011, 12:20 PM | #6 |
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Re: Is an air filter needed ?
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07-17-2011, 12:22 PM | #7 |
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Re: Is an air filter needed ?
the modern paper ones are good to have to make your engine last longer and the carb cleaner
John |
07-17-2011, 12:33 PM | #8 |
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Re: Is an air filter needed ?
Apparently they did not have filters when new and I'm sure driving conditions were a lot dirtier than today.. The roadster had an air-maze when I bought it in '76.. I've used it, a filter and with nothing.. I noticed no real difference in performance,but, I don't run it hard.. The throat needs to be enlarged a bit for use on a Tillotson..
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07-17-2011, 12:48 PM | #9 |
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Re: Is an air filter needed ?
I understand the arguments for and against a filter. But what about a piece of pipe that is just pointed upwards w/o a filter? I will probably put one on my brand new engine as I don't want to suck anything up.
Mike
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07-17-2011, 01:04 PM | #10 |
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Re: Is an air filter needed ?
Up, down, or sideways, you'll be sucking the same air. If you want to use a filter I'd use a balance tube. You should be able to connect the hole vent on the rear side (top center of bottom bowl) to the air filter. This will balance the air pressure on both sides of the mixture jets, so you don't enrichen the mix.
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07-17-2011, 01:12 PM | #11 |
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Re: Is an air filter needed ?
I recall a tour where a car caught on fire. The float stuck in the carb and soaked the paper element. Poof, up it went.
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07-17-2011, 01:16 PM | #12 | |
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Re: Is an air filter needed ?
Glenn,
What is diameter and length of the filter element please? Thanks Quote:
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07-17-2011, 01:19 PM | #13 |
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Re: Is an air filter needed ?
Tom,
Do you use any kind of air filter's on your "A's" ? Does installing an air filter enrichen the mix. ? Just trying to decide. Thamks. |
07-17-2011, 01:22 PM | #14 |
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Re: Is an air filter needed ?
I use one, alot of folks say that you don't need one but in my area and on some of the roads I run on, some times the dust can get pretty thick from the farmers fields. For me it's cheap insurance and a little piece of mind. The element I use is the K&N E2190.
Last edited by Clydes 31 P/U; 07-19-2011 at 04:09 PM. Reason: a little info on the element |
07-17-2011, 02:00 PM | #15 |
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Re: Is an air filter needed ?
I don't use air filters of any kind on my model A. Even with the Air maze with screen wire you will still have some degree of air flow restriction, this will not only cause loss of pep and power but will also cause a rich fuel mix and cause dilution of the oil. Dilution of the oil will not save the engine but will cause early bearing failure. If using an air filter, smell the oil on the dip stick, you will smell the gas that is diluting it.
In my younger days many of us would remove the breather on our modern cars. With the breather removed you could feel an increase in power and hear the cool moan of the four barrel. Model A's don't have four barrels or moan but they are underpowered as compaired to modern cars and don't need any restriction in power, especially if there is a chance of oil dilution and shortened bearing life. I'm not a purist but Henry didn't think that an air breather was needed. |
07-17-2011, 02:01 PM | #16 | |
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Re: Is an air filter needed ?
Quote:
I lived in El Paso for 2 1/2 years, while in the Army, and the last 6 months I rented a house off post. Once a month there would be a dust storm and no matter how tight you thought the house was, you'd have red fine dust all over the dishes in the cupboard, and on the bed sheets, in the closet, etc. I'd sure want a filter in those conditions. |
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07-17-2011, 02:02 PM | #17 |
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Re: Is an air filter needed ?
I'm guessing, that with the side pans originally mounted between the engine and frame, stones, birds small animals, insects and other such stuff was deflected from the intake; and, to keep the price down and keep it simple, if it wasn't needed, don't do it... and that was in the days of mostly dirt roads. Air filters, any kind, will restrict the air flow and make the mixture run rich.
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07-17-2011, 02:11 PM | #18 |
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Re: Is an air filter needed ?
Wow .. a ton of good info ... Our Pepsi truck just does a few parades and car shows .. I had an air filter on but without realizing it , it plugged up from the inside with carbon and I thought the carb was at fault , when it was realy just the filter ... I think going filterless is my best option ..
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07-17-2011, 02:20 PM | #19 | |
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Re: Is an air filter needed ?
Quote:
good choice |
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07-17-2011, 02:38 PM | #20 | |
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Re: Is an air filter needed ?
Quote:
If you feel the need for a filter then the best bet is a balanced carb. Next thing if you don't want to modify your carb is to do a search on Fordbarn, there is a rather large (as compared to the airmaze) K&N filter that seems to be large enough to minimize the air restriction to the carb.
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