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Old Oct 8, 2011 | 12:29 AM
  #16  
andyg's Avatar
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From: North Chicago
Year: 1993
Model: Cherokee
Engine: 4.0
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How much sludge was there? Cheap oil won't cause that, lack of changes on time will.
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Old Oct 8, 2011 | 12:45 AM
  #17  
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From: gulf shores
Year: 1999
Model: Cherokee
Engine: 4.0L
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Originally Posted by andyg
How much sludge was there? Cheap oil won't cause that, lack of changes on time will.
Alot. I got 95 percent of it out but the head was the worst

Oil issues-image-2878869177.jpg
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Old Oct 8, 2011 | 12:48 AM
  #18  
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From: gulf shores
Year: 1999
Model: Cherokee
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But I didn't use that head. And I cleaned the block of almost all of the sludge but obviously Missed something. This is the head I ended up using

Oil issues-image-130566989.jpg
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Old Oct 8, 2011 | 07:27 AM
  #19  
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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Head gasket on wrong, blocking oil flow to the head?
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Old Oct 8, 2011 | 07:33 AM
  #20  
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From: gulf shores
Year: 1999
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Originally Posted by cruiser54
Head gasket on wrong, blocking oil flow to the head?
I'm positive that I didn't make a rookie mistake. I mean it's labeled but I'm to the point where it wouldn't hurt
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Old Oct 8, 2011 | 07:35 AM
  #21  
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From: Prescott, Az
Year: 1990
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I know, but we're at our wit's end now. You need an oil flow diagram for the engine.
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Old Oct 8, 2011 | 07:59 AM
  #22  
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From: Covington, WA.
Year: 1995
Model: Cherokee
Engine: 4.0
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I just read the section on the lube system in my fsm for my 95 and according to it the rocker arms are lubricated thru the push rods...might want to check and make sure they are clean inside....that old rocker assembly was pretty cruddy
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Old Oct 8, 2011 | 08:07 AM
  #23  
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Originally Posted by xjforfishing
I just read the section on the lube system in my fsm for my 95 and according to it the rocker arms are lubricated thru the push rods...might want to check and make sure they are clean inside....that old rocker assembly was pretty cruddy
Yeah, blow through them with compressed air. I'm suspecting the pushrods are clogged and many need replacing.
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Old Oct 8, 2011 | 05:49 PM
  #24  
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Originally Posted by xjforfishing
I just read the section on the lube system in my fsm for my 95 and according to it the rocker arms are lubricated thru the push rods...might want to check and make sure they are clean inside....that old rocker assembly was pretty cruddy
I didn't use anything from the original head I got a new one very clean with new rockers and rods
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Old Oct 8, 2011 | 07:28 PM
  #25  
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From: Covington, WA.
Year: 1995
Model: Cherokee
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try putting a mechanical gauge where the sender is to see what your pressure is...as posted earlier you could use a drill to spin the pump and see if you get oil on top and see how much pressure you build up...just a thought
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Old Oct 8, 2011 | 09:50 PM
  #26  
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From: Utah
Year: 1999
Model: Cherokee
Engine: 4.7 stroker
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Originally Posted by 95Forrest

I made sure the oil pump worked by testing it with a drill in a bucket of oil. And I took the sending unit out and cranked it and oil sprayed out but it's just not getting to the top of the block
Did you look into the valve cover after the pump was installed to make sure what your saying is true?
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Old Oct 9, 2011 | 12:52 PM
  #27  
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Originally Posted by 89 xj stroker

Did you look into the valve cover after the pump was installed to make sure what your saying is true?
The valve cover isn't on. I never put it on until I get everything right.it's messy buts it saves time
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Old Oct 9, 2011 | 04:38 PM
  #28  
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Year: 1999
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Originally Posted by 95Forrest

The valve cover isn't on. I never put it on until I get everything right.it's messy buts it saves time
So... thats a yes? If so, try some seafoam in there, if there is gunk in there, it should clear it out.
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Old Oct 10, 2011 | 12:12 AM
  #29  
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Originally Posted by 89 xj stroker

So... thats a yes? If so, try some seafoam in there, if there is gunk in there, it should clear it out.
I am going to take the head back off tomorrow and spin the pump with it off. Just to see if anything happens. I'll run some seafoam through there after I get it back together. I ran some kerosene through it and it didn't help but I'm running out of things to try
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