New Member: Air Filter

[rcefird]

Hi everyone
I'm a new member from NC. I recently bought a 1941 BC 12 and am rellly having fun with it. I have seen prior posts about carb. air intakes. Mine has nothing in it. Is that the way it is supposed to be? I mean no screen or anything, I am looking straight up into the carb. throttle body when the carb heat flap is not on. I am flying off of a grass strip that will get dusty during the summer dry weather. Is there any preferred aftermarket filter system to use. I bought a brackett filter but have not figured how to attach without messing up my lower cowling, my A&P is willing to put on a filter but wants me to see if you guys have a tried and true method for doing it. Once i figure out posting here, I'll try to attach a picture of what I am talking about.
Thanks
Randy

[mulwyk]

Re: New Member: Air Filter

Randy:

My T-craft also has the no-filter intake. It's called the "airscoop". It's the real deal, the original type air intake. There's not many originals left. Congratulations!

Later T's were built with the Brackett type intake and many were converted to a Brackett type filter over the years. The conversion involves cutting a hole in the front of your cowl and then making a fairing piece that fits over the hole and around the projecting filter.

It's easy to convert to a Brackett filter, but the airscoop with uncut cowl is hard to find and is highly valued by the purists and antique airplane folks. The original airscoop seems to work just fine and many owners perfer the looks of the original cowl.

The decision is yours, of course, but I think it would be a shame if, after 60+ years, you decide to cut the old girls cowl and put a modern air filter on her!

Bob Gustafson

[lktiller]

Re: New Member: Air Filter

build a spacer box to fit under the carb heat box. Just enough to lower the Brackett filter a couple of inches.
Someone on this forum has plans/dimensions for just such a box.
I'm going to do the same when I get a round tuit.

[alwaysoar]

Re: New Member: Air Filter

I'd be interested in the plans for the spacer box. Who out there has them?

[NY86]

Re: New Member: Air Filter

I'm going to do the same when I get a round tuit.

I used to have a really nice round tuit. I'd be glad to lend it to you, but I haven't been able to find it for several years now...

[3Dreaming]

Re: New Member: Air Filter

If I remember right there used to be a service bulletin, or other source that showed putting a 30's vintage car filter on one. Tom

[rcefird]

Re: New Member: Air Filter

Anyone have any pictures of your setup for an air filter? I would really like to be able to put one on without cutting into my cowling. I have some pictures of my current intake but haven't figured out how to attach a photo.
Randy

[Howard Wilson]

Re: New Member: Air Filter

I don't see the service bulletin for adding the old Chevrolet air cleaner to the Continental engine (don't have them all). Lycoming does have one: S.B. 103. April 25, 1941. The drawing shows the filter on the outside of the cowl, directly below the carb heat box (no new hole in the cowl). For what it's worth the Chevrolet part # was 1529265. Probably similar set up if one exists.

[flylo]

Re: New Member: Air Filter

I have the modified Chevy air cleaner on my '38.It's kinda cool & gets a lot of looks at fly-ins.My pics in the gallery show it if your interested.

[rcefird]

Re: New Member: Air Filter

Eric
I looked at your pictures. did you do this with a stc or 337 and are there any drawings, etc. to go by?
Randy

[Hank Jarrett]

Re: New Member: Air Filter

If you decide you want to mod your cowl CONTACT ME!!! Ihave a 41 that has been modified for the modern filter and want the original one. I'm nuts for originality and fly from a paved runway.
Where in Carolina are you? I'm at SFQ in Suffolk VA. Right in the neighborhood! By the way, post war cowls don't seem to fit unmodified pre-war planes [at least none of the ones I have tried].
Hank

[flylo]

Re: New Member: Air Filter

Randy,I have the service bulletin dated April 1941 from Lycoming.I can fax or scan you a copy if you want.Let me know.

[rcefird]

Re: New Member: Air Filter

Hi Eric
Sorry, but I have been away from the computer for a few days. I would like to get a copy of the service bulletin. I will try to e-mail my fax number to you.
Randy

[flylo]

Re: New Member: Air Filter

Fax sent this morning.

[VictorBravo]

Re: New Member: Air Filter

If you decide you want to mod your cowl CONTACT ME!!! Ihave a 41 that has been modified for the modern filter and want the original one. I'm nuts for originality and fly from a paved runway.
Where in Carolina are you? I'm at SFQ in Suffolk VA. Right in the neighborhood! By the way, post war cowls don't seem to fit unmodified pre-war planes [at least none of the ones I have tried].
Hank

Hank, I think I have one of the old style carburetor scoops with the carb heat valve in it. I'll have to go and look thru my hangar junk, but I do remember it being there. If you need a "rebuidable core" this one is a good candiate. Let me know if you need it, and we can swap parts or something. Mine's got the cowl cut for the airbox, and I land on dirt sometimes.