00 xj oil filter seal blows out and makes lots of noise
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Member
Joined: Apr 2011
Posts: 115
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From: provo, utah
Year: 1987
Model: Cherokee
Engine: 4.0
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Joined: Feb 2011
Posts: 14,479
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From: Blunt, South Dakota
Year: 97
Model: Cherokee (XJ)
Engine: 4.6 stroker
Wow, WTF...just watched that video
Noisy as hell, and the Old Faithful oils gush at the end...I dunno man.
So, is that with the adapter still on, or off with the filter on the block?
What did the adapter look like when you pulled it? Any cracks/breaks?
Block not cracked where it mounts?
That noise is awful. Wondering how long it ran like that, and if it was slow coming on and got worse suddenly. I'm guessing you were losing oil, not enough to notice at first, the damage was done, and here you are...
Have you done a compression test yet? Checked the oil for chunks or flakes?
Noisy as hell, and the Old Faithful oils gush at the end...I dunno man.
So, is that with the adapter still on, or off with the filter on the block?
What did the adapter look like when you pulled it? Any cracks/breaks?
Block not cracked where it mounts?
That noise is awful. Wondering how long it ran like that, and if it was slow coming on and got worse suddenly. I'm guessing you were losing oil, not enough to notice at first, the damage was done, and here you are...
Have you done a compression test yet? Checked the oil for chunks or flakes?
Thread Starter
Member
Joined: Apr 2011
Posts: 115
Likes: 0
From: provo, utah
Year: 1987
Model: Cherokee
Engine: 4.0
Wow, WTF...just watched that video
Noisy as hell, and the Old Faithful oils gush at the end...I dunno man.
So, is that with the adapter still on, or off with the filter on the block?
What did the adapter look like when you pulled it? Any cracks/breaks?
Block not cracked where it mounts?
That noise is awful. Wondering how long it ran like that, and if it was slow coming on and got worse suddenly. I'm guessing you were losing oil, not enough to notice at first, the damage was done, and here you are...
Have you done a compression test yet? Checked the oil for chunks or flakes?
Noisy as hell, and the Old Faithful oils gush at the end...I dunno man.
So, is that with the adapter still on, or off with the filter on the block?
What did the adapter look like when you pulled it? Any cracks/breaks?
Block not cracked where it mounts?
That noise is awful. Wondering how long it ran like that, and if it was slow coming on and got worse suddenly. I'm guessing you were losing oil, not enough to notice at first, the damage was done, and here you are...
Have you done a compression test yet? Checked the oil for chunks or flakes?
Last edited by jeep801; Aug 28, 2017 at 08:23 AM.
CF Veteran




Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
How about the compression test?
Since the noise and pressure problems came on suddenly, I'm wondering if some chunk of sludge has broken loose and is clogging an oil passage.
You might want to pick up a mechanic's stethoscope and do some listening to see if you can narrow down the noise.
Since the noise and pressure problems came on suddenly, I'm wondering if some chunk of sludge has broken loose and is clogging an oil passage.
You might want to pick up a mechanic's stethoscope and do some listening to see if you can narrow down the noise.
I'm wondering if it's bypass valve related but I'd think a new filter would've fixed the leak.
Initially, the by pass valve in the filter maybe let oil through at too high a pressure (and it should've been in by pass mode but wasn't) and that burst the seal.
The Microguard filter is a low line Wix, same as Supertech and Napa Proselect. STP, if it was the basic one would be an ecore design which is kind of shoddy.
Initially, the by pass valve in the filter maybe let oil through at too high a pressure (and it should've been in by pass mode but wasn't) and that burst the seal.
The Microguard filter is a low line Wix, same as Supertech and Napa Proselect. STP, if it was the basic one would be an ecore design which is kind of shoddy.
No, I don't lick fish.



Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
How about the compression test?
Since the noise and pressure problems came on suddenly, I'm wondering if some chunk of sludge has broken loose and is clogging an oil passage.
You might want to pick up a mechanic's stethoscope and do some listening to see if you can narrow down the noise.
Since the noise and pressure problems came on suddenly, I'm wondering if some chunk of sludge has broken loose and is clogging an oil passage.
You might want to pick up a mechanic's stethoscope and do some listening to see if you can narrow down the noise.
CF Veteran




Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Not sure. I was thinking that a clogged oil passage would cause damage to a lot of downstream components, which could make a lot of noise. For example, plug a main passage that feeds all the lifters, and......
No, I don't lick fish.



Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
CF Veteran




Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Thread Starter
Member
Joined: Apr 2011
Posts: 115
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From: provo, utah
Year: 1987
Model: Cherokee
Engine: 4.0
I did remove the valve cover there was nothing noticeably wrong but I didn't pay enough attention on the oiling because of the oil filter SEAL issue I had to shut it off quick . I do know it's puddling up while running with the valve cover off where I can see through the filler cap but it will need to come back off to be sure.
No, I don't lick fish.



Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
I did remove the valve cover there was nothing noticeably wrong but I didn't pay enough attention on the oiling because of the oil filter SEAL issue I had to shut it off quick . I do know it's puddling up while running with the valve cover off where I can see through the filler cap but it will need to come back off to be sure.
Thread Starter
Member
Joined: Apr 2011
Posts: 115
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From: provo, utah
Year: 1987
Model: Cherokee
Engine: 4.0
Yeah pull it back off again. Inspect the valves for any signs of damage... shouldn't be any from above, but just check in case. Start up the motor and watch the valves closely, might have to hunch down and look at them somewhat parallel to the ground. If any of them seem like they're not opening as high as the others, it may be a lifter issue or possibly a bent valve.
I'll pull it back off to check the valves. I know there was not any notice able damage and all the rockers were tight but I'll look to see if they are all opening. I'll post a video of it. But it may be 2-3 days before I can.
Sounds like the oil pressure relief valve in the oil pump has gotten stuck. Its sending full pressure to the filter causing it to burst. Not a common problem with the 4.0. The noisey lifters are caused by lack of oil to the lifters. Run the engine the absolute least possible, oil is probably not getting anywhere else. Running it will eventually cause it to self destruct as the relief valve may be causing full bypass not sending oil anywhere.
Ron
Ron


