00 XJ Cracked Head. Fix or Sell as is
CF Veteran
Joined: Nov 2010
Posts: 5,840
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
Verify oil pressure, but it is likely that considerable damage to the bearings has been done. Coolant reduces the lubricity of oil considerably and it doesn't take long......
I agree with fully investigating a salvage yard engine. I have installed MANY in 38 years of wrenching and have only had one that I had to exchange.
Sure you can get a rebuilt or a reman, and they are great options, but considering what your vehicle is worth, it will get you upside down in what your XJ is actually worth. A salvage yard engine is plug and play and a lot easier on the pocketbook.
Whatever you decide, the engine you put in there should NOT have an 0331 head!
Good luck!
I agree with fully investigating a salvage yard engine. I have installed MANY in 38 years of wrenching and have only had one that I had to exchange.
Sure you can get a rebuilt or a reman, and they are great options, but considering what your vehicle is worth, it will get you upside down in what your XJ is actually worth. A salvage yard engine is plug and play and a lot easier on the pocketbook.
Whatever you decide, the engine you put in there should NOT have an 0331 head!
Good luck!
Senior Member
Joined: Jan 2011
Posts: 801
Likes: 1
From: N. IL
Year: 2000
Model: Cherokee
Engine: 4.0
Good advice here ^ Test first then decide.
Seasoned Member
Joined: Apr 2011
Posts: 263
Likes: 0
From: 4 Corners, USA
Year: 2000
Model: Cherokee
Engine: 4.0 I-6 Cyl. w/ 0630Head+MikeWilsonAdapter (preserves engine/brain function w/ stronger head) 62mmTB
Hi All,
If I bought an Alabama cylinder head, would I need to have a ring job?
Replaced my 0331 cylinder head with an 0630 cylinder head in 2009.
Had the engine rebuilt, everything except the push rods replaced.
I always heard if you have a valve job you should have a ring job at the same time, to keep from pulling oil past the rings due to the difference in the amount of pressure seal at each location. Or some such.
Jeep Cherokee Forum > Technical Discussion > Advanced Cherokee Tech
If I bought an Alabama cylinder head, would I need to have a ring job?
Replaced my 0331 cylinder head with an 0630 cylinder head in 2009.
Had the engine rebuilt, everything except the push rods replaced.
I always heard if you have a valve job you should have a ring job at the same time, to keep from pulling oil past the rings due to the difference in the amount of pressure seal at each location. Or some such.
Jeep Cherokee Forum > Technical Discussion > Advanced Cherokee Tech
Member
Joined: Apr 2010
Posts: 135
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From: Tuscola Il
Year: 1997
Model: Cherokee
Engine: 4.0
☠ CF Sheriff ☠
Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
honestly if you have a bit of mechanical know-how, this wouldn't be that hard to fix. The crank bearings and head can both be replaced without even removing the engine from the vehicle. I doubt the cam bearings are gone, but then again I don't know how long the P.O. ran the engine like that...
Junior Member
Joined: Apr 2011
Posts: 44
Likes: 0
From: CA
Year: 1989
Model: Cherokee
Engine: Straight 6
im new to this forum and hope this is the rite place to ask....i hav an 89 xj...it occasionally likes to overheat...i know this cuz the radiator coolant reservoir leaks....ive replaced the tank and it came with its own cap but stil leaks...any thoughts?can i replace more stuf to stop overheating period?
Seasoned Member
Joined: Nov 2010
Posts: 473
Likes: 2
From: Cincinnati, Ohio
Year: 2004
Model: Grand Cherokee
Engine: 4.0 I6
im new to this forum and hope this is the rite place to ask....i hav an 89 xj...it occasionally likes to overheat...i know this cuz the radiator coolant reservoir leaks....ive replaced the tank and it came with its own cap but stil leaks...any thoughts?can i replace more stuf to stop overheating period?
Senior Member
Joined: Jan 2011
Posts: 801
Likes: 1
From: N. IL
Year: 2000
Model: Cherokee
Engine: 4.0
im new to this forum and hope this is the rite place to ask....i hav an 89 xj...it occasionally likes to overheat...i know this cuz the radiator coolant reservoir leaks....ive replaced the tank and it came with its own cap but stil leaks...any thoughts?can i replace more stuf to stop overheating period?
https://www.cherokeeforum.com/f2/nee...-bottle-83436/
https://www.cherokeeforum.com/f2/ren...d-shift-63044/
Junior Member
Joined: Apr 2011
Posts: 44
Likes: 0
From: CA
Year: 1989
Model: Cherokee
Engine: Straight 6
Because you have a different problem than what this thread is about it would of been better to start your own thread. If you search renix cooling you'll find lots of threads about your issue, like these:
https://www.cherokeeforum.com/f2/nee...-bottle-83436/
https://www.cherokeeforum.com/f2/ren...d-shift-63044/
https://www.cherokeeforum.com/f2/nee...-bottle-83436/
https://www.cherokeeforum.com/f2/ren...d-shift-63044/
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