The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1947 - 1959 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-15-2018, 12:34 AM   #1
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck?

How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck? Is it possible or recommended?


I really don't know how to ask this question without sounding stupid, but I have an older 1956 Chevy Truck all original with the original oil bath style of air-filter breather.

Can you buy an air type style of air filter to run it as a regular air filter, without the oil inside the same canister?

Is the carb jetted specifically for the oil style breather?

Does it affect performance?

Also I'd like to paint the outside of air filter body top and bottom - do you recommend engine paint or can this things be powder coated?

Thanks .

dolphans1 is offline   Reply With Quote
Old 06-15-2018, 01:40 AM   #2
mr48chev
Registered User
 
mr48chev's Avatar
 
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 10,180
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

I'm not sure about the jetting and the hard core stock just like it left the factory brigade will be protesting in front of your driveway.

On the other hand first thing I would do is take some measurements and start looking in the measurement section of the air filter catalog.

Round = a given Outside diameter, inside diameter and height. Wix has an easy to navigate chart for filters by size.

Things to remember when you get done cutting it has to seal on both top and bottom of the filter. you need enough space between the wall of the metal housing and the element for sufficient air flow and enough space where the air enters for decent air flow.
__________________
Founding member of the too many projects, too little time and money club.

My ongoing truck projects:
48 Chev 3100 that will run a 292 Six.
71 GMC 2500 that is getting a Cad 500 transplant.
77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.
mr48chev is offline   Reply With Quote
Old 06-15-2018, 11:40 AM   #3
mikebte
Senior Member
 
Join Date: Oct 2011
Location: Tucson, AZ
Posts: 397
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

I can not remember the part number for the life of me, but I did this some time ago when I was running the 6 Cylinder. If my memory serves me right, I think the filter was out of a Chrysler application.
Attached Images
    
mikebte is offline   Reply With Quote
Old 06-15-2018, 01:10 PM   #4
mikebte
Senior Member
 
Join Date: Oct 2011
Location: Tucson, AZ
Posts: 397
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Found it, I had originally posted to the link below.

https://talk.classicparts.com/thread...-filter.13733/

Used a CA146 FRAM filter. It was cheep. The K&N is P/N:E-1000

The filter did seal on the bottom, but the surface is slanted. If you could weld or epoxy a flat surface to the bottom sealing surface you would have a nice setup.


I love the oil bath. I am a fan of the oil bath myself. But after lots and lots of hear say I did the research. Found out that GM switch due to they had engine life increase after just swapping a paper filter in the oil baths place. Later on they figured out paper was in fact cleaner. Oil bath is great but it is not the best! GM also found that engine life was greater after running the PCV air intake to the air cleaner, this increased engine life by 40% as opposed to the valve cover air intake. I went threw a lot of old books and lots of searching to find this info. Now, if you ask anyone that has a oil bath what is better, they will insist on oil bath. Oil bath was for the most part better then nothing. The SAE has set standards for air filters and they must clean so good to pass. Oil bath dose not clean dust that well, the idea of oil bath is that it makes a 180 degree bend and slams the air into the oil and then hope the heavier partials would drop into the oil. Oil wetted air filters such as K&N have claim some of the best filtration around, I am currently experimenting with the AEM dry flow filters and also run paper and K&N filters.

Last edited by mikebte; 06-15-2018 at 01:15 PM. Reason: Grammer
mikebte is offline   Reply With Quote
Old 06-15-2018, 05:47 PM   #5
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
I found this on a search. http://www.classicpartsusa.com/product/ACF36_1956/1956_Truck_Parts_Carburetor_Items?gclid=Cj0KCQjwx43ZBRCeARIsANzpzb_TkIM11EUj0RTaenvMldox5sQ2hNpWMv5v V7nLKPsMxBJAMozY6ZcaAnNnEALw_wcB
Posted via Mobile Device
dolphans1 is offline   Reply With Quote
Old 06-15-2018, 05:49 PM   #6
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
Quote:
Originally Posted by dolphans1 View Post
I found this on a search. http://www.classicpartsusa.com/product/ACF36_1956/1956_Truck_Parts_Carburetor_Items?gclid=Cj0KCQjwx43ZBRCeARIsANzpzb_TkIM11EUj0RTaenvMldox5sQ2hNpWMv5v V7nLKPsMxBJAMozY6ZcaAnNnEALw_wcB
Posted via Mobile Device
Posted via Mobile Device
dolphans1 is offline   Reply With Quote
Old 06-15-2018, 05:59 PM   #7
mikebte
Senior Member
 
Join Date: Oct 2011
Location: Tucson, AZ
Posts: 397
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Seems a little small for a main air filter. Maybe its for multiple carburetor set up.
Attached Images
  
mikebte is offline   Reply With Quote
Old 06-15-2018, 06:04 PM   #8
mikebte
Senior Member
 
Join Date: Oct 2011
Location: Tucson, AZ
Posts: 397
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Are you looking to change out the whole set up for something such as this? Cause that is kind of what it's sounding like.

http://forums.devestechnet.com/forum...e-design-truck
Attached Images
  
mikebte is offline   Reply With Quote
Old 06-16-2018, 12:39 AM   #9
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
Quote:
Originally Posted by mikebte View Post
I can not remember the part number for the life of me, but I did this some time ago when I was running the 6 Cylinder. If my memory serves me right, I think the filter was out of a Chrysler application.
Precisely, like that orange looking style fram filter for the single barrel carburetor. Do you recall the number?
Posted via Mobile Device
dolphans1 is offline   Reply With Quote
Old 06-16-2018, 01:33 AM   #10
mr48chev
Registered User
 
mr48chev's Avatar
 
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 10,180
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

That Fram CA146 also comes out as a WIX 42011 or some other numbers.
If you click on the blue 42011 it shows what it fits. https://www.rockauto.com/en/parts/fr...ir+filter,6192

Specs are https://www.rockauto.com/en/moreinfo...k=360104&jsn=3
__________________
Founding member of the too many projects, too little time and money club.

My ongoing truck projects:
48 Chev 3100 that will run a 292 Six.
71 GMC 2500 that is getting a Cad 500 transplant.
77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.
mr48chev is offline   Reply With Quote
Old 06-16-2018, 08:13 AM   #11
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
Quote:
Originally Posted by mr48chev View Post
That Fram CA146 also comes out as a WIX 42011 or some other numbers.
If you click on the blue 42011 it shows what it fits. https://www.rockauto.com/en/parts/fr...ir+filter,6192

Specs are https://www.rockauto.com/en/moreinfo...k=360104&jsn=3
Thanks, I was always taught that oil attracts dirt and dust and would prefer they dry paper filter over the oil bath style. I now wonder if an autozone or O’Reilys carries them.
Posted via Mobile Device
dolphans1 is offline   Reply With Quote
Old 10-19-2018, 07:06 PM   #12
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
Re: Follow-up an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Hello Guys,

I have a follow-up question to my oil bath air-filter case.

The top of the air-filter that sits on to of the bottom case holding the filter, where can I buy that rubber round "O" ring gasket that seals to top cover (on bottom of top of the lid cover) to main bottom case which houses the actual air-filter.

I called LMC truck and no one knew its almost 7"3/4 - 8" inches in diameter, I did a search online and did not find anything.

Anyone know?

Thanks !
dolphans1 is offline   Reply With Quote
Old 10-19-2018, 08:07 PM   #13
mongocanfly
Senior Member
 
Join Date: May 2015
Location: Alabama
Posts: 6,619
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

If its a o ring you can have one made for it...our local parts store has the ability and so does the bearing and seal place in town
__________________
Mongo...aka Greg

1981 c30 lq9 nv4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
1955.1 ls3 tr6060...(under construction)(on hold)
2013 gmc z71. (daily driver)
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
mongocanfly is offline   Reply With Quote
Old 10-19-2018, 08:11 PM   #14
1project2many
Registered User
 
Join Date: Mar 2012
Location: Lakes Region NH
Posts: 2,144
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

You may end up at a place that services hydraulic cylinders for that O-ring. You may get away with Nitrile but I'd look for Neoprene or Viton if available. The "flat O ring" may be known as face cut, lathe cut, or square cut depending on the manufacturer. You might be shocked at the prices though. MSC direct shows a 7" OD Buna-N ring at about $14 but prices seem to go up as high as $300.

You could also buy sheets of Neoprene and make your own. Grainger sells a 12" X 12" X 1/8" sheet for $5.60. I'd feel like I could try twice at that price.
1project2many is offline   Reply With Quote
Old 10-19-2018, 09:04 PM   #15
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Here is what I did tonight, I flipped the older gasket around and used pliobond and reused it. There's a small gap due to shrinkage, do you think this will work? There's a small gap there.

dolphans1 is offline   Reply With Quote
Old 10-19-2018, 09:06 PM   #16
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Quote:
Originally Posted by mikebte View Post
Are you looking to change out the whole set up for something such as this? Cause that is kind of what it's sounding like.

http://forums.devestechnet.com/forum...e-design-truck
Sorry I missed your response Mike and Thanks, I was going with the original setup. I never got the email response you replied and have not been online much.
dolphans1 is offline   Reply With Quote
Old 10-19-2018, 09:57 PM   #17
mikebte
Senior Member
 
Join Date: Oct 2011
Location: Tucson, AZ
Posts: 397
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

I put a little oil on the face of the air filter cause the metal sat on the filter and creates a seal. The seal you speak about was not used in my set up.
mikebte is offline   Reply With Quote
Old 10-19-2018, 10:06 PM   #18
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Quote:
Originally Posted by mikebte View Post
I put a little oil on the face of the air filter cause the metal sat on the filter and creates a seal. The seal you speak about was not used in my set up.
Thanks Mike for the advice.
dolphans1 is offline   Reply With Quote
Old 10-19-2018, 10:14 PM   #19
cmayna
Registered User
 
Join Date: Oct 2018
Location: Menlo Park, CA
Posts: 11
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Instead of converting an oil bath filter, why not just get a dry filter of the right height and carb diameter? Couple years ago, I switched my oil filter to a dry filter.

Craig
__________________
Craig
My truck '50 Chevy 3100-5 window
If I'm not working on my truck, I'm fishing with the wife or smoking Salmon.

Last edited by cmayna; 10-19-2018 at 10:42 PM.
cmayna is offline   Reply With Quote
Old 10-19-2018, 10:50 PM   #20
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Quote:
Originally Posted by cmayna View Post
Instead of converting an oil bath filter, why not just get a dry filter of the right height and carb diameter? Couple years ago, I switched my oil filter to a dry filter.

Craig
That's exactly what I am trying to do, convert to dry versus oil but keep the same canister.
dolphans1 is offline   Reply With Quote
Old 10-20-2018, 01:48 PM   #21
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck





Here's my set-up.
dolphans1 is offline   Reply With Quote
Old 10-20-2018, 09:18 PM   #22
cmayna
Registered User
 
Join Date: Oct 2018
Location: Menlo Park, CA
Posts: 11
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Very nice work.
__________________
Craig
My truck '50 Chevy 3100-5 window
If I'm not working on my truck, I'm fishing with the wife or smoking Salmon.
cmayna is offline   Reply With Quote
Old 10-20-2018, 09:52 PM   #23
dolphans1
Registered User
 
Join Date: Apr 2018
Location: Dallas, TX
Posts: 27
Re: How to convert an oil bath air-filter to an air type filter on a 1956 Chevy Truck

Quote:
Originally Posted by cmayna View Post
Very nice work.
Thanks Craig.
dolphans1 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:09 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com