Replacement Air Filter

1950 - 1968, M38, M38A1, M170, modifications, sugestions, and ideas, official MWO's and unofficial field mods.
Post Reply
User avatar
dfield
G-Colonel
G-Colonel
Posts: 1323
Joined: Tue Apr 19, 2005 5:41 pm
Location: Orange County California

Replacement Air Filter

Post by dfield » Tue May 17, 2011 7:23 pm

I am looking for an inexpensive air filter to run on an M38A1. I am not looking for correct, just functional. The carb is civvy YF I believe. Anyone use modern filters and housings from the local auto parts store?


User avatar
muttguru
G-Colonel
G-Colonel
Posts: 1698
Joined: Fri Jul 18, 2003 11:46 am
Location: Lil' ol' England
Contact:

Re: Replacement Air Filter

Post by muttguru » Thu May 26, 2011 2:41 pm

dfield wrote:I am looking for an inexpensive air filter to run on an M38A1. I am not looking for correct, just functional. The carb is civvy YF I believe. Anyone use modern filters and housings from the local auto parts store?
Hello DF,
I understand that the early M151-series air cleaner is very similar (if not identical) to the M38A1. So you may find this interesting.....several M151 owners have removed the wire gauze strainer from the air filter and have installed a FRAM paper element into the shell. Here's the FRAM that they use....it's a FRAM CA-8039.
Reports from users indicate some improvements in performance.

kind regards....
Ken


Image
Contact address - muttguru@aol.com
Always wanted - Details and pictures of M416 Trailer data plates & M151 data plates & body-tags for my research. Thanks!

User avatar
dfield
G-Colonel
G-Colonel
Posts: 1323
Joined: Tue Apr 19, 2005 5:41 pm
Location: Orange County California

Re: Replacement Air Filter

Post by dfield » Mon May 30, 2011 7:24 pm

Ken,

I have two M151 air cleaner canisters. They are both the same. What is the difference between early and late M151 air cleaner assemblies? I am pretty sure that the late M38A1 and early M151 use the same air cleaner.

Dave

User avatar
muttguru
G-Colonel
G-Colonel
Posts: 1698
Joined: Fri Jul 18, 2003 11:46 am
Location: Lil' ol' England
Contact:

Re: Replacement Air Filter

Post by muttguru » Wed Jun 01, 2011 7:13 am

dfield wrote:Ken,

I have two M151 air cleaner canisters. They are both the same. What is the difference between early and late M151 air cleaner assemblies? I am pretty sure that the late M38A1 and early M151 use the same air cleaner.
Dave
Hello Dave,
here are pictures of the two versions of the air cleaner. The "flat-top" is the early version, used 1960-62. The "ribbed" version followed on and was used to 1982 final production.

The early cleaner had another slight difference. Because the carb used on early M151's (the Holley) was vented externally, it had a connection to the air filter for fording purposes. The ribbed cleaner used the Zenith carb and that carb was internally vented so an extra connection point was not used. A pipe plug filled the connection outlet.

kind regards....
Ken

Image


Image
Contact address - muttguru@aol.com
Always wanted - Details and pictures of M416 Trailer data plates & M151 data plates & body-tags for my research. Thanks!

User avatar
dfield
G-Colonel
G-Colonel
Posts: 1323
Joined: Tue Apr 19, 2005 5:41 pm
Location: Orange County California

Re: Replacement Air Filter

Post by dfield » Wed Jun 08, 2011 7:08 am

I guess I was wrong. The early M151 and M38A1 air filters are not the same. The two I have are late M151. Thanks for the pictures and education.

Dave

User avatar
SHYBOY
G-Master Sergeant
G-Master Sergeant
Posts: 122
Joined: Tue Jul 12, 2011 4:06 pm
Location: GLENDALE CALIFORNIA

Re: Replacement Air Filter

Post by SHYBOY » Wed Aug 03, 2011 1:37 am

Just purchased a 1952 m38a1... I have the same question but didn't understand a final answer to the original question. Will that Fram filter ( ca 8039 ) work as a replacement for the oil bath filter? thanks
If it weren't for pickpockets, I'd have no sex at all.. Rodney Dangerfield

User avatar
dfield
G-Colonel
G-Colonel
Posts: 1323
Joined: Tue Apr 19, 2005 5:41 pm
Location: Orange County California

Re: Replacement Air Filter

Post by dfield » Tue Aug 16, 2011 6:35 am

That particular Fram will work in the M151 air filter. There is another one that would work in the M38A1 filter. I'll do a search and get back to you.

Dave

User avatar
dfield
G-Colonel
G-Colonel
Posts: 1323
Joined: Tue Apr 19, 2005 5:41 pm
Location: Orange County California

Re: Replacement Air Filter

Post by dfield » Tue Aug 16, 2011 6:37 am

Here are a couple of links.

http://www.willysmjeeps.com/v2/modules. ... ght=#20989" onclick="window.open(this.href);return false;
http://www.1945mb.com/c-80-G503_WWII_Je ... ilter.aspx" onclick="window.open(this.href);return false;

Cuz
G-Lieutenant General
G-Lieutenant General
Posts: 6672
Joined: Fri Feb 23, 2007 10:26 am
Location: Northwestern Wisconsin
Contact:

Re: Replacement Air Filter

Post by Cuz » Wed Aug 17, 2011 10:53 am

Those web references are for the MB and M38 filter which do not believe have the same interior dimensions of the Willys/Kaiser supplied M38A1/M170.
Cuz (AKA Wes K)
45 MB, 51 M38, 54 M37, 6? M101A1, 60 CJ5, 76 DJ5D & 47 T3-C

ktm25089
G-Command Sergeant Major
G-Command Sergeant Major
Posts: 233
Joined: Tue Dec 19, 2006 12:38 pm
Location: Greece

Re: Replacement Air Filter

Post by ktm25089 » Sun Nov 20, 2011 1:59 am

anyone who did this to M38A1??Can he please tell the number of the element??

Thanks
George

Joe Gopan
Jeep Heaven
Posts: 49841
Joined: Sun Mar 02, 2008 12:37 pm
Location: Proving Ground

Re: Replacement Air Filter

Post by Joe Gopan » Sun Nov 20, 2011 4:05 am

Why replace something that is known to work and requires little attention?
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO

User avatar
dfield
G-Colonel
G-Colonel
Posts: 1323
Joined: Tue Apr 19, 2005 5:41 pm
Location: Orange County California

Re: Replacement Air Filter

Post by dfield » Sun Dec 04, 2011 5:26 am

I found an M38A1 oil bath for a fair price so I purchased it. I'll be using the original filter.

User avatar
SHYBOY
G-Master Sergeant
G-Master Sergeant
Posts: 122
Joined: Tue Jul 12, 2011 4:06 pm
Location: GLENDALE CALIFORNIA

Re: Replacement Air Filter

Post by SHYBOY » Mon Jan 02, 2012 6:57 am

I had the same question in August on this thread, I followd the thread thinking Dave would have the eventual answer... I again 2nd Georges question... Anybody know of paper filter that will work in an M38a1. Joel; I've always had a slight "Mickey Mouse" streak in me.. If it's a good fit it would sure be easier to change and is internal and not seen. :idea: :?:
If it weren't for pickpockets, I'd have no sex at all.. Rodney Dangerfield


Post Reply

Return to “M38, M38a1 Modifications”

Who is online

Users browsing this forum: No registered users and 34 guests