NAXJA Forums -::- North American XJ Association  

Go Back   NAXJA Forums -::- North American XJ Association > NAXJA Unibody Jeep Technical Forums > Jeep Cherokee XJ (1984 - 2001) > Modified Tech Discussion
HOME Member FAQ Sponsor Info Rules Bylaws E-Mail

Modified Tech Discussion Forum for Tech related discussion for Modified XJ's and MJ's.

Reply
 
Thread Tools Display Modes
  #1  
Old December 3rd, 2017, 16:59
Lake919 Lake919 is offline
NAXJA Forum User
 
Join Date: Jan 2010
Location: Mobile, AL
Posts: 357
Can you convert a pre 97 xj to an automatic belt tensioner?

Hi all I am getting ready to pull the motor on my XJ in a month or so and begin my rebuild. I plan on fulling building the XJ up now that I got my dream job and money isn't really that much of a concern. What I am curious about, is can I make my 1995 4.0 use the auto belt tensioner on the later models? What is required and how hard is the swap? Thanks guys
Reply With Quote
  #2  
Old December 3rd, 2017, 17:27
bigdaddyjlove bigdaddyjlove is offline
NAXJA Forum User
 
Join Date: Jul 2006
Location: Atalanta
Posts: 491
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

the XJ never got an automatic tensioner
Reply With Quote
  #3  
Old December 3rd, 2017, 17:39
Lake919 Lake919 is offline
NAXJA Forum User
 
Join Date: Jan 2010
Location: Mobile, AL
Posts: 357
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

Okay so not the automatic tensioner per se, but the one that you use a breaker bar with a socket head and turn and the belt comes directly off, vs mine that has to remove to air box and loosen 40 nuts and loosen a long bolt to remove belts
Reply With Quote
  #4  
Old December 3rd, 2017, 17:39
trippled trippled is offline
NAXJA Member
 
Join Date: Apr 2006
Location: colorado springs, co
Posts: 1,580
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

Wj and tj had them but require removal of ac and mechanical fan and relocation for the alternator. And you'd have to find the bracket. Ive had a wj bracket for like 5years and still haven't done it. I really do hate manual tensioners though.
Reply With Quote
  #5  
Old December 3rd, 2017, 18:10
TRCM's Avatar
TRCM TRCM is offline
NAXJA Member
 
Join Date: Jan 2007
Location: Newport News,VA
Posts: 1,016
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

I'm just gonna put a V8 in mine........much easier......LOL
Reply With Quote
  #6  
Old December 3rd, 2017, 18:21
Lake919 Lake919 is offline
NAXJA Forum User
 
Join Date: Jan 2010
Location: Mobile, AL
Posts: 357
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

Yeah I am happy with the 4.0 for what I use it for. I just cannot stand that replacing belts takes 30 minutes on my motor and 2 on newer motors. Maybe I will look for a newer model motor and rebuild it instead.
Reply With Quote
  #7  
Old December 3rd, 2017, 18:32
md21722 md21722 is offline
NAXJA Member
 
Join Date: Feb 2014
Location: Colorado Springs
Posts: 2,286
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

Quote:
Originally Posted by Lake919 View Post
Okay so not the automatic tensioner per se, but the one that you use a breaker bar with a socket head and turn and the belt comes directly off, vs mine that has to remove to air box and loosen 40 nuts and loosen a long bolt to remove belts
What you're describing is an automatic tensioner.

I don't know if the 1995 and 1997-2001 models are the same.

My rigs are all 97+. It only takes a few seconds. I loosen the idler pulley with a long zero offset wrench and then use a cordless ratchet with an extension and 15mm socket to move the idler far enough that I can get the belt off. The fans, shrouds, and air box are not involved.
Reply With Quote
  #8  
Old December 3rd, 2017, 20:26
Anak's Avatar
Anak Anak is offline
Mostly Harmless
 
Join Date: Sep 2013
Location: SoCal
Posts: 2,169
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

I think '96 to '01 all use the same idler pulley/tension adjustment system.

I hate that 15mm bolt in the middle of the idler pulley. I have found a line wrench that has about the right offset, but so far that is the only tool I have found to do that job halfway gracefully. I am thinking of welding up a couple of "wrenches" using 15mm sockets.

A spring loaded tensioner would be nice.
__________________
Project "Scope Creep": 1996 4wd 4.0L, AX15
Reply With Quote
  #9  
Old December 4th, 2017, 06:49
Wayne Sihler's Avatar
Wayne Sihler Wayne Sihler is offline
NAXJA Member
 
Join Date: May 2002
Location: Maurertown,Va.
Posts: 2,547
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

Quote:
Originally Posted by Anak View Post
I think '96 to '01 all use the same idler pulley/tension adjustment system.

I hate that 15mm bolt in the middle of the idler pulley. I have found a line wrench that has about the right offset, but so far that is the only tool I have found to do that job halfway gracefully. I am thinking of welding up a couple of "wrenches" using 15mm sockets.

A spring loaded tensioner would be nice.
Having the same problem on my XJ,s. The solution--got a 1/4" drive battery operated ratchet wrench and a 15mm 1/4" socket(Snap-on$) and it will spin that bolt just fine.
__________________
Wayne
Member#17
NRA Life member, AARP NovaJeepers
96XJ,4.0,AW4,D30/D44,4:10s,Detroit,4.5" lift 33,s
Reply With Quote
  #10  
Old December 5th, 2017, 07:54
muddypunk muddypunk is offline
TOOL
 
Join Date: Jun 2010
Location: Coupeville Whidbey Island washington
Posts: 1,285
Can you convert a pre 97 xj to an automatic belt tensioner?

96 at least my buddies is just like my 95 this would be great but just buy a daily belt and they last a good long while. What uses a 15mm? My 95 takes a 13mm to loosen the ps.pump and I use a stubby ratchet wrench so I don't whack the radiator and it takes me about 10 minutes.
Motor mounts are different 97+ I've got a friend who tried to put my spare (93) motor in his 99 grand and it wouldn't bolt it not a simple deal for him.

Maybe that helped.

Sent from my Arse because my hands are full
Reply With Quote
  #11  
Old December 5th, 2017, 12:18
TRCM's Avatar
TRCM TRCM is offline
NAXJA Member
 
Join Date: Jan 2007
Location: Newport News,VA
Posts: 1,016
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

Quote:
Originally Posted by muddypunk View Post
96 at least my buddies is just like my 95 this would be great but just buy a daily belt and they last a good long while. What uses a 15mm? My 95 takes a 13mm to loosen the ps.pump and I use a stubby ratchet wrench so I don't whack the radiator and it takes me about 10 minutes.
Motor mounts are different 97+ I've got a friend who tried to put my spare (93) motor in his 99 grand and it wouldn't bolt it not a simple deal for him.

Maybe that helped.

Sent from my Arse because my hands are full
motor mount issue was cuz his was a grand...motor mounts are not the same at all..may have the same engine, but the rest of the mount area isn't the same

My 96 takes a 15 mm.

What's a daily belt ??


.

Last edited by TRCM; December 5th, 2017 at 12:21.
Reply With Quote
  #12  
Old December 5th, 2017, 13:35
typerr typerr is offline
NAXJA Forum User
 
Join Date: Nov 2015
Location: Lakewood, CA
Posts: 36
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

Quote:
Originally Posted by Lake919 View Post
Yeah I am happy with the 4.0 for what I use it for. I just cannot stand that replacing belts takes 30 minutes on my motor and 2 on newer motors. Maybe I will look for a newer model motor and rebuild it instead.
If you are rebuilding your 1995 motor anyway than do what I did and upgrade your intake manifold at the same time to the later horseshoe manifold. Mine is ported to match my ported Pottenger head. The newer manifold requires a different power steering pump and brackets and uses the much easier to deal with belt adjuster. BTW no need to upgrade the whole motor, just the manifold pump and brackets. I found my manifold in a JY off a later Grand Cherokee.
Reply With Quote
  #13  
Old December 5th, 2017, 18:28
BenWheelin BenWheelin is offline
NAXJA Forum User
 
Join Date: Oct 2017
Location: Texas
Posts: 31
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

Quote:
Originally Posted by muddypunk View Post
96 at least my buddies is just like my 95 this would be great but just buy a daily belt and they last a good long while. What uses a 15mm? My 95 takes a 13mm to loosen the ps.pump and I use a stubby ratchet wrench so I don't whack the radiator and it takes me about 10 minutes.
Motor mounts are different 97+ I've got a friend who tried to put my spare (93) motor in his 99 grand and it wouldn't bolt it not a simple deal for him.

Maybe that helped.

Sent from my Arse because my hands are full
It's because your bracket is more or less like the early Renix, with two bolts in slotted holes behind, a pivot bolt on top, a lock nut on the bottom, and an adjusting bolt on the side. I'll look at mine tomorrow and assess the simplicity of swapping, as I have both yours and a 96 like the others describe.

It bolts to the water pump and the block, and adds an idler. Probably have to change the manifold.
Reply With Quote
  #14  
Old December 7th, 2017, 14:38
burntkat burntkat is online now
NAXJA Member #1145
 
Join Date: Apr 2003
Location: Charleston, SC
Posts: 872
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

Instead of trying to reinvent the wheel- just learn to use tools. It's *not* that big a deal.
__________________
-89 S-10: SAS, D44s front/rear. 5.7L V8. 700R4 with 4L60E upgrades. Built in my driveway.
-90 XJ 4.0, AW4, 231J: Clayton's longarms, RE 5.5" coils, hybrid 6" leaf pack, 33/12.50/15" MTs, Rancho 99012s and 99624s, Tera HD SYE, custom sliders, BW flares. Rehabbing with D44s, RE spring packs, RE 4.5" coils, and ACOS.
-94 ZJ: Budget boost, 31s. The wife's DD.
-97 XJ: Son's DD. 4" lift, ACOS, 4" spring pack, Upcountry coils, 31s
Reply With Quote
  #15  
Old December 7th, 2017, 14:57
bigdaddyjlove bigdaddyjlove is offline
NAXJA Forum User
 
Join Date: Jul 2006
Location: Atalanta
Posts: 491
Re: Can you convert a pre 97 xj to an automatic belt tensioner?

I honestly have come to prefer the manual tensioner in the XJs. Its reliable, I get to set the tension, I don't have to hold the spring with one hand while feeding the belt with the other.
Reply With Quote
Reply


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

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Belt Tensioner red91xj OEM Tech Discussion 12 March 2nd, 2010 16:45
Belt Tensioner on 94 XJ 4.0 curtis1620 OEM Tech Discussion 9 September 16th, 2009 12:11
99 belt tensioner on 93 XJ czb83 Modified Tech Discussion 3 May 19th, 2008 13:30
Belt Tensioner JeepCherokee OEM Tech Discussion 2 June 20th, 2006 22:31
belt tensioner jeep_cj8 OEM Tech Discussion 3 July 11th, 2003 09:54


All times are GMT -7. The time now is 13:45.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
NAXJA and NAXJA logo's Copyright NAXJA. All content/images Copyright NAXJA 1999-2014