NAXJA Forums -::- North American XJ Association  

Go Back   NAXJA Forums -::- North American XJ Association > NAXJA Unibody Jeep Technical Forums > Jeep Cherokee XJ (1984 - 2001) > OEM Tech Discussion
HOME Member FAQ Sponsor Info Rules Bylaws E-Mail

OEM Tech Discussion Forum for OEM (Original Equipment) or stock XJs and MJs.

Reply
 
Thread Tools Display Modes
  #1  
Old November 7th, 2019, 17:31
Black1990jeep Black1990jeep is offline
NAXJA Forum User
 
Join Date: Apr 2018
Location: california
Posts: 349
Air Filter Too Small?

Ok, on my1990 XJ, inline six, using the 6077 sized airfilter, it slumps into the airbox.

The airbox is 6.5 inches wide, the filter I have is 6.6 inches wide, hardly any margin.

What is the dimension of your filter, and or air box?

is the 1990 filter different than the later XJs?

see link for photos....

https://www.cherokeetalk.com/forum/f...1/#post1154931
Reply With Quote
  #2  
Old November 7th, 2019, 18:01
lawsoncl lawsoncl is offline
NAXJA Forum User
 
Join Date: Jan 2006
Location: North Idaho
Posts: 5,138
Re: Air Filter Too Small?

I have noticed the air filter box tends to bow out in the middle. At least until you squeeze the sides in to get the lid on.
Reply With Quote
  #3  
Old November 10th, 2019, 09:03
Black1990jeep Black1990jeep is offline
NAXJA Forum User
 
Join Date: Apr 2018
Location: california
Posts: 349
Re: Air Filter Too Small?

What I am finding is the airfilter box is an extremely poor design. There is so little area supporting the filter media, it is asking for failure. Yes any warp, even 0.05 inch is enough to cause failure. I think I need to modify the airbox. maybe add a ridge inside with some steel flat bar. I cant believe this design passed quality control.

The later airboxes, they are different, yes? do they hold filters better? I see that aftermarket new boxes are the later style, and dont have provision for the warm up hot air tube valve, no intake snout like the one on my 1990.
Reply With Quote
  #4  
Old November 14th, 2019, 14:39
jrowell's Avatar
jrowell jrowell is offline
NAXJA Member
 
Join Date: Jun 2005
Location: Bakersfield
Posts: 1,097
Re: Air Filter Too Small?

I added an all-thread just under the filter through mine with a nut on both sides. Used the nuts to squeeze in the box a bit and suck up the "bow".
Reply With Quote
  #5  
Old November 15th, 2019, 03:53
md21722 md21722 is offline
NAXJA Member
 
Join Date: Feb 2014
Location: Colorado
Posts: 2,417
Re: Air Filter Too Small?

I have a 1997 and a 2001 both with the "later style" air box and have never had an issue with air filters collapsing or not fitting. Over the last 15 years/ 400,000+ miles I've used various auto parts store filters from Auto Zone, Advance, and NAPA and never had a problem with any of them. Based on the pictures, the filter box seems similar to the "early style".

0.05" is a pretty small tolerance to have a problem with. 0.5" is more reasonable and may be from using the wrong filter, or having a distorted air box for some reason.

In one of the pictures shown, there is a noticeable gap where the air filter fits, allowed unfiltered air into the engine. This appears to be the incorrect filter size, rather than the air box itself.
Reply With Quote
  #6  
Old November 15th, 2019, 04:36
md21722 md21722 is offline
NAXJA Member
 
Join Date: Feb 2014
Location: Colorado
Posts: 2,417
Re: Air Filter Too Small?

Duplicate
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
89 xj Small issues. NW-ZJ-SCOTT OEM Tech Discussion 3 October 8th, 2008 14:05
WTB: Small List for XJ XJfreakHO SEC For Sale / Wanted Forum 1 September 10th, 2008 01:53
How can something that small, bjoehandley Non-Tech / Off Topic 15 January 26th, 2007 23:25
vw, small but strong. . . . SBrad001 Non-Tech / Off Topic 12 February 28th, 2006 09:50
Why the small rim? Uni Modified Tech Discussion 16 July 2nd, 2003 15:35


All times are GMT -7. The time now is 10:40.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
NAXJA and NAXJA logo's Copyright NAXJA. All content/images Copyright NAXJA 1999-2014