Timing Chain - Jeep Cherokee Forum

Notices
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.
Sponsored by:
Sponsored by:

Timing Chain

Old 03-17-2019, 08:00 AM
  #1  
Newbie
Thread Starter
 
Join Date: Dec 2018
Posts: 5
Model: Cherokee (XJ)
Default Timing Chain



Here is a picture of it.
Can someone show me the timing marks for a 99 Cherokee 4.0. I got the 1 cylinder at TDC on compression stroke and both the cam and crank are opposite of each other. The crank is lining up as it should per images I have seen of what correct looks like. But the cam mark is 180 degrees from the crank mark. I am seeing that they should point at each other but my are not. If you had an imaginary line going through the assembly it would be in line. What is the deal with the 15 pin count? Help please.

Last edited by ssgcoleman1; 03-17-2019 at 08:05 AM. Reason: Photo added
ssgcoleman1 is offline  
Old 03-17-2019, 08:16 AM
  #2  
CF Veteran
 
00t444e's Avatar
 
Join Date: Nov 2015
Location: Southern OH
Posts: 1,749
Year: 1997
Model: Cherokee(XJ)
Engine: 4.0
Default

What exactly are you trying to do? If you want to change the timing chain and gears you rotate it to where the mark on the top gear is at the bottom and lined up with the mark on the bottom gear.
00t444e is online now  
Old 03-17-2019, 08:44 AM
  #3  
Newbie
Thread Starter
 
Join Date: Dec 2018
Posts: 5
Model: Cherokee (XJ)
Default

Originally Posted by 00t444e View Post
What exactly are you trying to do? If you want to change the timing chain and gears you rotate it to where the mark on the top gear is at the bottom and lined up with the mark on the bottom gear.
I am replacing the cam and cam bearings. It was eating the distributor gear. The only wear I see is on the gear on the cam shaft that turns the distributor. I am replacing all the cam components to fix this issue. So the cam in the picture is basically 180 out? It was definitely on TDC compression stroke. So the two marks should be pointed at each other?
ssgcoleman1 is offline  
Old 03-17-2019, 08:52 AM
  #4  
gat
Seasoned Member
 
Join Date: Mar 2016
Location: Oklahoma
Posts: 348
Year: 1992
Model: Cherokee
Engine: 4.0L L6 PowerTech (stock)
Default

https://youtu.be/PfW_StKs3Yw
gat is offline  
Old 03-19-2019, 06:49 PM
  #5  
Newbie
 
88AMCXJ's Avatar
 
Join Date: Mar 2019
Posts: 8
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0L Renix
Default

I don't want to add bad information here so someone please correct me if needed. I recently did the timing gears on my 88 and they were facing each other. If someone had put the cam in 180 out at some point and ran the plug wires 180 out I *think* everything would still run, probably just not well. Just a thought, I've seen previous owners do some crazy stuff!
88AMCXJ is offline  
Old 03-19-2019, 10:28 PM
  #6  
Junior Member
 
arto_wa's Avatar
 
Join Date: Jul 2017
Location: S.W. WA State
Posts: 68
Year: 1989 & 1990
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by ssgcoleman1 View Post
........................ It was eating the distributor gear. The only wear I see is on the gear on the cam shaft that turns the distributor. I am replacing all the cam components to fix this issue. ...............................
You should investigate why the gear is so worn?
I.E. damaged / seizing distributor or oil pump bearing?

I once lost a new camshaft in a new Mopar rebuilt 4.0L due to a new jobber aftermarket distributor's bearing seizing up while running!
arto_wa is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
NMJeep01
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
7
07-18-2014 02:55 PM
XJeep98Classic
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
13
02-07-2012 08:19 AM
sandstone
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
6
07-06-2009 09:28 PM
JayM
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
11-30-2008 02:52 PM
sscott
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
03-01-2008 05:53 PM

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

Thread Tools
Search this Thread
Quick Reply: Timing Chain


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description: