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.

Fly wheel to Crankshaft alignment

Thread Tools
 
Search this Thread
 
Old Apr 16, 2010 | 10:31 PM
  #1  
Mattpar's Avatar
Thread Starter
Senior Member
 
Joined: Feb 2009
Posts: 521
Likes: 1
Model: Cherokee
Default Fly wheel to Crankshaft alignment

I'm in the middle of swapping out motors on my Jeep. A 97 cherokee 4.0 motor(blown) for a 98 TJ 4.0. The TJ had a manual trans, so I need to bolt up my flywheel and torque converter to the crank. I didnt pay close enough attention of the crank to flywheel positioning, BUT it looks like there is only one way that the flywheel will bolt of to the crank cause the bolts are not evenly spaced. Thus only 2 of the 6 will line up, so it needs to get rotated until they all line up ok

I think i answered my own question, but just double checking it before i button everything back up


You can see the "tone ring" that the crank shaft position sensor sees.
Reply
Old Apr 16, 2010 | 10:38 PM
  #2  
Nor-CalJeeper's Avatar
Seasoned Member
 
Joined: Mar 2010
Posts: 379
Likes: 1
From: Modesto
Year: 1993
Model: Cherokee
Engine: 4.0 high output straight 6
Default

Sounds right
Reply
Old Apr 16, 2010 | 10:43 PM
  #3  
tj40's Avatar
Seasoned Member
 
Joined: Jan 2010
Posts: 390
Likes: 0
From: Chicago
Year: 1994
Model: Cherokee
Engine: 4.0
Default

does the sheet metal plate go in between the block and flywheel or can it go on after the flywheel is bolted up?
Reply
Old Apr 16, 2010 | 10:45 PM
  #4  
OverlandZJ's Avatar
CF Veteran
Premium Member
15 Year Member
 
Joined: May 2008
Posts: 5,188
Likes: 6
From: Bristol,Pa
Year: 94
Model: Cherokee
Engine: 4.0L
Default

Originally Posted by tj40
does the sheet metal plate go in between the block and flywheel or can it go on after the flywheel is bolted up?
Goes between the flywheel and bolts... if you asking about the circular ring.

And yes, you answered your own first question.
Reply
Old Apr 16, 2010 | 10:50 PM
  #5  
OverlandZJ's Avatar
CF Veteran
Premium Member
15 Year Member
 
Joined: May 2008
Posts: 5,188
Likes: 6
From: Bristol,Pa
Year: 94
Model: Cherokee
Engine: 4.0L
Default

Oh, your asking about the larger plates. I think you can install the upper half after.. better check. The lower goes on after the trans is on.

Also, find the lineup for the torque converter and mark both it and one of the holes in the flywheel.. makes it easier when bolting it up.
Reply
Old Apr 16, 2010 | 10:53 PM
  #6  
tj40's Avatar
Seasoned Member
 
Joined: Jan 2010
Posts: 390
Likes: 0
From: Chicago
Year: 1994
Model: Cherokee
Engine: 4.0
Default

Ya can't think of the name of the sheetmetal? Its like a big metal gasket that goes between the engine and trans. I messed up my 351 engine drop in last month and I was pissed, the starter was rubbing on my flywheel (lightly like nails on a chalk board) I found what I would call a block plate hanging on the wall !!!!! I'm still mad.......
Reply
Old Apr 16, 2010 | 11:09 PM
  #7  
Mattpar's Avatar
Thread Starter
Senior Member
 
Joined: Feb 2009
Posts: 521
Likes: 1
Model: Cherokee
Default

Originally Posted by tj40
Ya can't think of the name of the sheetmetal?
Flywheel inspection cover.

The Manual TJ had a one piece cover, my Cherokee has a 2-3 piece i think.

I originally pulled the motor out with the torque converter still connected to the flywheel. I talked to 2 very experienced techs at work and they said to put the torque converter on the trans and then loosely mate the motor to the trans, then bolt the torque converter to the flywheel. This is the safest method so I don't accidentally snap off the input to the trans oil pump.

I got the FSM on for my 99, but this is a 97, but polly the same thing,...
Reply
Old Apr 16, 2010 | 11:12 PM
  #8  
OverlandZJ's Avatar
CF Veteran
Premium Member
15 Year Member
 
Joined: May 2008
Posts: 5,188
Likes: 6
From: Bristol,Pa
Year: 94
Model: Cherokee
Engine: 4.0L
Default

I agree with what they are telling you. The torque convertor only bolts on one way like the flywheel did. Now is the time to line it up and mark so you dont have to try, find it wrong, rotate and try again till you get it right.

Make sure that converter is seated all the way back.. it'll drop in about three times as it's rotated.



Originally Posted by Mattpar
Flywheel inspection cover.

The Manual TJ had a one piece cover, my Cherokee has a 2-3 piece i think.

I originally pulled the motor out with the torque converter still connected to the flywheel. I talked to 2 very experienced techs at work and they said to put the torque converter on the trans and then loosely mate the motor to the trans, then bolt the torque converter to the flywheel. This is the safest method so I don't accidentally snap off the input to the trans oil pump.

I got the FSM on for my 99, but this is a 97, but polly the same thing,...
Reply
Old Apr 16, 2010 | 11:19 PM
  #9  
Mattpar's Avatar
Thread Starter
Senior Member
 
Joined: Feb 2009
Posts: 521
Likes: 1
Model: Cherokee
Default

Originally Posted by OverlandXJ
Oh, your asking about the larger plates. I think you can install the upper half after.. better check. The lower goes on after the trans is on.

Also, find the lineup for the torque converter and mark both it and one of the holes in the flywheel.. makes it easier when bolting it up.
I think the upper halves go on WITH the motor because there are alignment dowls on either side of the engine that go through the inspection cover. Then the smaller(drivers side bottom, 1/3 of the overall cover assembly) goes on last so that it can be taken off separately so that the flywheel and torque converter can be inspected without separating the trans and motor to look for leaks.

I'll definitly mark the flywheel and torque converter. I know is gonna be a pain to line the motor and trans up, when match up the bolt holes on the fly/converter,... Thats gonna be tomorrow fun!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
aglass0fmilk
Cherokee Chat
11
Oct 27, 2020 08:05 AM
JayneCobb
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
26
Aug 11, 2020 03:22 PM
neocracka
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
Mar 28, 2020 05:48 PM
ROCKRIDGE 4WD
Vendor Showcase
0
Sep 15, 2015 01:21 PM

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



All times are GMT -5. The time now is 12:32 PM.