Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

4.0 head rebuild in progress. Lots of question and pictures

Thread Tools
 
Search this Thread
 
Old 07-03-2018, 09:28 AM
  #61  
CF Veteran
 
Bugout4x4's Avatar
 
Join Date: May 2015
Location: Arizona
Posts: 4,481
Likes: 0
Received 17 Likes on 13 Posts
Year: 97
Model: Cherokee
Engine: 4.0
Default

Originally Posted by mannydantyla
Yup! I think so too


In fact, I think it was fixed all along once the new head gasket was in place. Only reason it ran a little hot on that first test drive was because of a few small problems that added up: (1) I didn't properly bleed the air out of the cooling system, (2) I was using too much antifreeze and not enough water by mistake, and (3) it was really really hot that day! And it the temp wasn't creeping up, it just rose a little and then stopped at about 220.

But it just occurred to me that the engine used to make a "gurgling" noise when going really hard/fast up a hill. Now, I don't hear that! At all! I thought it was intake noise but maybe it was exhaust air rushing into the cooling system..?!

DONE

FIXED

MOVING ON
Oh yes, I have heard that sound many times before caused by compression pumping into the cooling system and bubbling through the overflow reservoir.

Great job man! have a safe uneventful trip!
Old 07-03-2018, 10:38 AM
  #62  
CF Veteran
 
Martlor13's Avatar
 
Join Date: Feb 2016
Location: Northern New Mexico
Posts: 3,683
Likes: 0
Received 7 Likes on 6 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Originally Posted by Bugout4x4
Oh yes, I have heard that sound many times before caused by compression pumping into the cooling system and bubbling through the overh
flow reservoir.

Great job man! have a safe uneventful trip!
I know you said you were coming down to the questa area to cabresto lake....i think it may be shut down due to fire restrictions? I'm not 100% sure what area it falls into, but there is another fire raging on about an hour away and most if that area is down. Red river, which is 15 minutes away, has all of their forests closed.....ill try and check for you sometime today

edit: i quoted the wrong post lol
Old 07-03-2018, 10:52 AM
  #63  
CF Veteran
 
Bugout4x4's Avatar
 
Join Date: May 2015
Location: Arizona
Posts: 4,481
Likes: 0
Received 17 Likes on 13 Posts
Year: 97
Model: Cherokee
Engine: 4.0
Default

Originally Posted by Martlor13
I know you said you were coming down to the questa area to cabresto lake....i think it may be shut down due to fire restrictions? I'm not 100% sure what area it falls into, but there is another fire raging on about an hour away and most if that area is down. Red river, which is 15 minutes away, has all of their forests closed.....ill try and check for you sometime today

edit: i quoted the wrong post lol
It's cool, I saw that. lol

That is useful information for him Sir! Hope it doesn't mess up his plans after all this work to get it ready for the trip.
Old 07-03-2018, 11:44 AM
  #64  
Seasoned Member
Thread Starter
 
mannydantyla's Avatar
 
Join Date: Dec 2016
Location: Lawrence ****ing Kansas
Posts: 391
Likes: 0
Received 7 Likes on 7 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
Default

Originally Posted by Martlor13
I know you said you were coming down to the questa area to cabresto lake....i think it may be shut down due to fire restrictions? I'm not 100% sure what area it falls into, but there is another fire raging on about an hour away and most if that area is down. Red river, which is 15 minutes away, has all of their forests closed.....ill try and check for you sometime today

edit: i quoted the wrong post lol
Thanks for the heads up! Yes it is shut down the whole Carson NF is closed and that is probably not the only one that is closed. We'll have to adjust our plans, go further north, not a big deal.
Old 07-03-2018, 12:41 PM
  #65  
CF Veteran
 
Martlor13's Avatar
 
Join Date: Feb 2016
Location: Northern New Mexico
Posts: 3,683
Likes: 0
Received 7 Likes on 6 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Originally Posted by mannydantyla
Thanks for the heads up! Yes it is shut down the whole Carson NF is closed and that is probably not the only one that is closed. We'll have to adjust our plans, go further north, not a big deal.
i thought so. Most all forests are closed in NM...not sure there are any options left open. There may be some areas open near the colorado border but havent checked yet.
Old 08-24-2018, 10:22 PM
  #66  
CF Veteran
 
97grand4.0's Avatar
 
Join Date: Nov 2015
Location: syracuse ny
Posts: 2,773
Received 174 Likes on 162 Posts
Year: 1997
Model: Grand Cherokee (ZJ)
Engine: 4.0, new lifters valve job with new springs and exhaust valves, preload set with shims
Default

Originally Posted by 5-Speed
Dont take this the wrong way but you missed 2 very important things. Old cam plus new lifters is always a gamble. You need to break them in right and it sounds like you didnt. You are supposed to hold the RPM above 1500 and vary the RPM a couple hundred for 20-30 min. This helps warm the oil up (ZDDP does nothing until the oil hits 160°) and helps lube the cam and lifters. On top of that, you are breaking in new lifters and that means they need special oil. While the oil you used has a higher then normal ZDDP content, you need even more then that with fresh lifters. It it was me, I would go get a bottle of Comp break in oil, throw it in and hope for the best.
Agree with this except, it is fine to put new lifters on an old cam, but not the other way around.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
acw10695
Jeep Builds
82
04-12-2020 06:07 PM
dcp1992
Fabrication & builders section.
114
07-01-2019 04:18 PM
nujeepguy
Cherokee Chat
3
11-06-2016 10:44 AM
98Redbird
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
12
12-14-2015 08:58 PM
michaeldamann
Miscellaneous
1
11-05-2013 05:22 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: 4.0 head rebuild in progress. Lots of question and pictures



All times are GMT -5. The time now is 05:50 AM.