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Complete Instructions for Eliminating Oil Filter Adaptor on Jeep XJ Cherokee
CF Veteran
Joined: Jan 2011
Posts: 1,635
Likes: 0
From: Virginia
Year: 1999
Model: Cherokee
Engine: 4.0
I was thinking of doing this since im leaking oil at the adapter. Besides pulling the adapter off and pulling out the locator pin on the side of the block is that all you need to do? Then just install oil filter of your choice aslong as it cross refrence to the Fram PH3614?
Senior Member
Joined: Oct 2009
Posts: 532
Likes: 1
From: Southern Utah
Year: 1992
Model: Cherokee
Engine: 4.0 I6
Originally Posted by aquickmopar
I was thinking of doing this since im leaking oil at the adapter. Besides pulling the adapter off and pulling out the locator pin on the side of the block is that all you need to do? Then just install oil filter of your choice aslong as it cross refrence to the Fram PH3614?
CF Veteran
Joined: Jan 2011
Posts: 1,635
Likes: 0
From: Virginia
Year: 1999
Model: Cherokee
Engine: 4.0
Alright thanx for the info. But I believe mine is the infamous Torx 60 I have a 96 HO 4.0 and that's what the bolt head looks like a Torx bit is needed.
Senior Member
Joined: Oct 2009
Posts: 532
Likes: 1
From: Southern Utah
Year: 1992
Model: Cherokee
Engine: 4.0 I6
Originally Posted by aquickmopar
Alright thanx for the info. But I believe mine is the infamous Torx 60 I have a 96 HO 4.0 and that's what the bolt head looks like a Torx bit is needed.
Junior Member
Joined: Oct 2011
Posts: 89
Likes: 0
From: Yakima, WA
Year: 1988
Model: Cherokee
Engine: Straight 6
I was looking forward to doing this modification yesterday on my sister-in-laws '89 Cherokee. It's been leaking oil so bad you can watch it seep out from between the block and adapter when the engine is running. All was going well until I tried to remove the roll pin. I've built up a nice collections of tools over the years, but nothing I have could get it to budge.
Once I came to the realization the modification wasn't happening I then began a despirate search for O-rings so I could get Jeep back on the road. O'Rielly's Auto Parts sells a Doorman "HELP" Oil Adapter and Cooler Gasket Assortment (part #82560) for $6. So I went down and got one. It had the correct adapter to block O-ring and one which replaced the internal O-ring. Unfortunately it did not have an O-ring suitable for outer portion of the adapter which is covered by the bolt flange. All my O-rings were were rock hard so they all needed to be replaced. I was about to go to Home Depot to try and find the last O-ring when I remembered there was an industrial bearing supply store nearby. They had the right sized O-ring for $1. I could have saved $4 if I had went there first.
(Note: I've used bearing supply shops to get bearings, bushings and seals which have ben discontinued by the manufacturer or to repair parts which otherwise would be replaced in componant form for several years. The parts are usually on the shelf and the prices are always fair. Just bring in your old parts.)
By the way I called the local Jeep earlier in the week to price the O-rings and they wanted $9 a piece for them and it would have taken a few days to get them in.
I might not have been able to get the modification done, but the Jeep is no longer leaking a quart of oil a week.
Once I came to the realization the modification wasn't happening I then began a despirate search for O-rings so I could get Jeep back on the road. O'Rielly's Auto Parts sells a Doorman "HELP" Oil Adapter and Cooler Gasket Assortment (part #82560) for $6. So I went down and got one. It had the correct adapter to block O-ring and one which replaced the internal O-ring. Unfortunately it did not have an O-ring suitable for outer portion of the adapter which is covered by the bolt flange. All my O-rings were were rock hard so they all needed to be replaced. I was about to go to Home Depot to try and find the last O-ring when I remembered there was an industrial bearing supply store nearby. They had the right sized O-ring for $1. I could have saved $4 if I had went there first.
(Note: I've used bearing supply shops to get bearings, bushings and seals which have ben discontinued by the manufacturer or to repair parts which otherwise would be replaced in componant form for several years. The parts are usually on the shelf and the prices are always fair. Just bring in your old parts.)
By the way I called the local Jeep earlier in the week to price the O-rings and they wanted $9 a piece for them and it would have taken a few days to get them in.
I might not have been able to get the modification done, but the Jeep is no longer leaking a quart of oil a week.
just did this a half hour ago, look me about 15 minutes. not that hard. I was unsure about some thing, but jumped right in anyways, and there was really nothing to be unsure about at that point. just need to pick up a filter tomorrow at oreillys, seeing as autozone didn't have the PH3614.
Senior Member
Joined: Oct 2009
Posts: 532
Likes: 1
From: Southern Utah
Year: 1992
Model: Cherokee
Engine: 4.0 I6
Originally Posted by zak873
just did this a half hour ago, look me about 15 minutes. not that hard. I was unsure about some thing, but jumped right in anyways, and there was really nothing to be unsure about at that point. just need to pick up a filter tomorrow at oreillys, seeing as autozone didn't have the PH3614.
Senior Member
Joined: Oct 2011
Posts: 674
Likes: 0
From: Westfield MA
Year: 1992
Model: Cherokee
Engine: 4.0L
Alright guys where is the PICS?!? I want to do this and a nice write up is great but without pics its killing me lol my jeep leaks like a faucet at this adapter.
to everyone who needs pictures, I used this http://www.myjeepxj.com/cherokee-rep...filter-adapter and then followed the directions on the pin and the male to male here. Its very straight forward and there's really not much involved. Mine was leaking like crazy, about 1/4-1/2 of a quart a day. It was a noticeable leak when it was parked under my carport. But, now its not leaking at all, win. I don't have any pictures because I don't have a camera, and my phone sucks *** at taking pictures. I lost about a quart of oil by taking the adapter and filter off, so plan to put a quart in. I used the bosch 3330 filter that Jordan suggested. The local autozone couldnt sell me the fram ph3614 because it was from advanced, and someone retured it there
But really the bosch fit 10x better. I wouldnt worry about anything flexing or moving and hitting the filter, because there is plenty of room to spare behind it.. So with that being said, have at it 
Edit: also, my oil pressure went up. at idle it was 20, now its around 35.
thank you!
But really the bosch fit 10x better. I wouldnt worry about anything flexing or moving and hitting the filter, because there is plenty of room to spare behind it.. So with that being said, have at it 
Edit: also, my oil pressure went up. at idle it was 20, now its around 35.
thank you!
Last edited by zak873; Nov 4, 2011 at 12:33 PM.
well after a long night of wheeling, it didn't hold up. was doing som pretty tough stuff and bouncing off rocks in a river. seen some smoke pouring out from under my hood, popped it and my filter was smashed. my motor mount shifted and broke, taking out the oil filter with it. so after going to walmart at 10 pm, got the fram filter and some oil to get me home. putting the adapter back on so I don't have to deal with this ****. even if it fixed the leak, I'd rather it leak that little bit then the huge amount when it smashed my filter.
CF Veteran
Joined: Apr 2011
Posts: 1,146
Likes: 0
From: Clayton, NC
Year: 1988
Model: Cherokee
Engine: 4.6L I6 Stroker with port matched +99 intake and 62mm TB
well after a long night of wheeling, it didn't hold up. was doing som pretty tough stuff and bouncing off rocks in a river. seen some smoke pouring out from under my hood, popped it and my filter was smashed. my motor mount shifted and broke, taking out the oil filter with it. so after going to walmart at 10 pm, got the fram filter and some oil to get me home. putting the adapter back on so I don't have to deal with this ****. even if it fixed the leak, I'd rather it leak that little bit then the huge amount when it smashed my filter.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
I attempted to do mine yesterday. Mine is a 1990 Limited.
1st issue - My bolt holding my adapter on was not a torx or a hex, it was a 5/8 bolt
2nd issue - When I bought the suggested filter, it did not fit onto the threads (which was fine because I could not get the male to male taken off)
3rd issue - actually a 2 parter - A. Hex on male to male was not 1"
B. No deep well socket could reach (I have some
seriously deep well sockets too)
There are the issues I had, I ended up just taking the O ring off of the filter I just bought ($1.99 with the special) and placing it there the O ring should have been in the adapter to the block.
That said, I've come to the conclusion that you can replace your OFA o-rings once in the life of yur Jeep and be assured your oil filter will never come in contact with a motor mount. Think maybe the engineers knew that the OFA was necessary?
Pretty good so far (no leaking), but still loosing oil pressure the longer I drive, and not normal pressure drop, like from 60 down to 20 at stops, then back up to 40 when I drive.
1st issue - My bolt holding my adapter on was not a torx or a hex, it was a 5/8 bolt
2nd issue - When I bought the suggested filter, it did not fit onto the threads (which was fine because I could not get the male to male taken off)
3rd issue - actually a 2 parter - A. Hex on male to male was not 1"
B. No deep well socket could reach (I have some
seriously deep well sockets too)
There are the issues I had, I ended up just taking the O ring off of the filter I just bought ($1.99 with the special) and placing it there the O ring should have been in the adapter to the block.
That said, I've come to the conclusion that you can replace your OFA o-rings once in the life of yur Jeep and be assured your oil filter will never come in contact with a motor mount. Think maybe the engineers knew that the OFA was necessary?
Pretty good so far (no leaking), but still loosing oil pressure the longer I drive, and not normal pressure drop, like from 60 down to 20 at stops, then back up to 40 when I drive.
Last edited by cruiser54; Nov 5, 2011 at 08:53 AM.
CF Veteran
Joined: May 2010
Posts: 1,680
Likes: 5
From: Western Michigan
Year: 1993
Model: Grand Cherokee
Engine: 4.0l inline 6
well after a long night of wheeling, it didn't hold up. was doing som pretty tough stuff and bouncing off rocks in a river. seen some smoke pouring out from under my hood, popped it and my filter was smashed. my motor mount shifted and broke, taking out the oil filter with it. so after going to walmart at 10 pm, got the fram filter and some oil to get me home. putting the adapter back on so I don't have to deal with this ****. even if it fixed the leak, I'd rather it leak that little bit then the huge amount when it smashed my filter.
I'm pretty sure a broke motor mount would lead to smashed filter whether you did the mod or not (problem is broke mount not mod). When I did my mod (engine was blown so I did the mod on the replacement engine) I also replaced the OEM engine mounts with Iron Man Fab engine mounts, very beefy and they'll last.






