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Old Jul 31, 2012 | 01:04 PM
  #39586  
Garrettfab's Avatar
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Originally Posted by jakbob
So. Anyone with a 4.0 motor laying around?
I have a renix motor
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Old Jul 31, 2012 | 01:05 PM
  #39587  
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From: Pasadena, MD
Year: 1987
Model: Wagoneer
Engine: Renix 4.0
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Let me expand on the issue.

Piston rings worn to the point the block pressurizes and blows unburnt fuel/oil into the airbox to the point that the air filter was 100% coated.

Oil pressure low, so bad that after a long drive, it will drop to 0 at a dead stop. Suspect crank bearings.
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Old Jul 31, 2012 | 01:06 PM
  #39588  
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From: Pasadena, MD
Year: 1987
Model: Wagoneer
Engine: Renix 4.0
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Originally Posted by Garrettfab
I have a renix motor
How is the condition?
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Old Jul 31, 2012 | 01:07 PM
  #39589  
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Originally Posted by jakbob

How is the condition?
It ran great in my jeep. I think it had around 160k
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Old Jul 31, 2012 | 01:14 PM
  #39590  
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From: Crofton, MD
Year: 1992
Model: Cherokee
Engine: 4.0 I6, 62mm BBK Throttle Body w/ 1" Spacer, Rusty's Airtube w/ 9" K&N Conical
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I found one that applys...

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Old Jul 31, 2012 | 01:14 PM
  #39591  
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From: Pasadena, MD
Year: 1987
Model: Wagoneer
Engine: Renix 4.0
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Originally Posted by Garrettfab
It ran great in my jeep. I think it had around 160k
How much? Mind you im unemployed
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Old Jul 31, 2012 | 01:20 PM
  #39592  
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From: Sykesville, Md
Year: 2000
Model: Cherokee
Engine: 4.0
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Originally Posted by jakbob
Let me expand on the issue.

Piston rings worn to the point the block pressurizes and blows unburnt fuel/oil into the airbox to the point that the air filter was 100% coated.

Oil pressure low, so bad that after a long drive, it will drop to 0 at a dead stop. Suspect crank bearings.
Cam bearings generate oil pressure Jake, Master Rebuild kit prolly run you $400 and you could rebuild the whole thing. Rings/bearings/gaskets/seals everything. Ill help you if you can get it to my shop. Got everything we need cept parts....
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Old Jul 31, 2012 | 01:23 PM
  #39593  
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Originally Posted by jakbob

How much? Mind you im unemployed
100$. Comes with everything but the flexplate.
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Old Jul 31, 2012 | 01:25 PM
  #39594  
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From: Sykesville, Md
Year: 2000
Model: Cherokee
Engine: 4.0
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Originally Posted by Garrettfab
100$. Comes with everything but the flexplate.
well there ya go Jake, less work for cheaper. If you get rid of your renix motor let me know. I got some plans just need a block
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Old Jul 31, 2012 | 01:26 PM
  #39595  
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From: Pasadena, MD
Year: 1987
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Engine: Renix 4.0
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Originally Posted by Garrettfab
100$. Comes with everything but the flexplate.
Sounds a lot better than a $400 rebuild kit. Lemme make some calls. Any interest in tj flairs?
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Old Jul 31, 2012 | 01:29 PM
  #39596  
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From: Sykesville, Md
Year: 2000
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Engine: 4.0
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Originally Posted by jakbob
Sounds a lot better than a $400 rebuild kit. Lemme make some calls. Any interest in tj flairs?
Yeah sounds alot better, till you learn that an ounce of prevention is worth a pound of cure. I have installed many a used motor just to be pulling it again in a few months because something was horribly wrong. I always at minimum put fresh gaskets in and check ring gap and end play on bearings while the motor is out....
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Old Jul 31, 2012 | 01:31 PM
  #39597  
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From: Glen Burnie, MD
Year: 2001
Model: Cherokee (XJ)
Engine: 4.0l
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yeah, at least do that damned rear main seal and check the freeze plug while its out.
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Old Jul 31, 2012 | 01:31 PM
  #39598  
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Just ordered a bunch of misc tabs, shock tabs, and clevis mounts. Let me know if anyone is interested. I can hook you up on installation/welding them too.
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Old Jul 31, 2012 | 01:31 PM
  #39599  
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From: New Market
Year: 1998
Model: Cherokee
Engine: 4.0L I6
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Originally Posted by XJnewbiegirl
so whens the next meet/greet/wheeling day
Saturday August 18th in Hagerstown.
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Old Jul 31, 2012 | 01:32 PM
  #39600  
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From: Sykesville, Md
Year: 2000
Model: Cherokee
Engine: 4.0
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I have been contemplating converting the pickup to a fuelie setup.... thoughts? I have finally found a decent kit with very simple tuning.
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