NAXJA Forums -::- North American XJ Association  

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

OEM Tech Discussion Forum for OEM (Original Equipment) or stock XJs and MJs.

Reply
 
Thread Tools Display Modes
  #1  
Old July 3rd, 2007, 09:00
XJNewbeeA&PMech's Avatar
XJNewbeeA&PMech XJNewbeeA&PMech is offline
NAXJA Forum User
 
Join Date: Feb 2007
Location: DFW Texas
Posts: 17
Water Pump Replacement

It looks like I need to replace my water pump. It started making this chirping sound like a loose belt but the sound goes away when the engine heats up. Its not the belt because I replaced it about 3k ago. I checked the pully on the pump today and it has some play in it like the bearings going out on her. I will be picking one up today when I get out of work.

I have read on the forums about waterpumps that turn in the opposite direction, or reverse, depending on engine, accessories, and belt routing so I have a question, but first this is my configuration.

95XJ Sport 4WD, 4.0 HO, Automatic, AC, PS with one serpentine belt. When facing the front of the engine the waterpump pully rotates counter- clockwise.

Do I need a standard waterpump or a reverse waterpump?

I tried to see if I could see an "R" cast into the waterpump but its pritty tight quarters in there.

If there were an "R" cast into the pump where is it located on the pump?

Thank You

Reply With Quote
  #2  
Old July 3rd, 2007, 09:07
FELIX's Avatar
FELIX FELIX is offline
Who Knows, Ask Who
 
Join Date: Aug 2003
Location: Camarillo, CA
Posts: 653
Re: Water Pump Replacement

I believe it should be an R, but can't really remember, but a reputable auto parts store will guide you in the right direction. Make sure you get a new one, not rebuilt, from a reputable parts store like Napa or such. I put 2 Pep Boy's in within 4 months. Took it back & got a Napa & it's been solid for the last 8 years. I would also say get a standard flow vs a high flow. There are 2 thoughts on this. If the coolant moves too quickly, it has less heat transfer time both in the water jackets and radiator. Others think if it flows faster, it will cool faster. I'm a believer in the first theory. The R will be on the inside blades.

Rob $.02

Last edited by FELIX; July 3rd, 2007 at 09:26.
Reply With Quote
  #3  
Old July 3rd, 2007, 09:48
bfred bfred is offline
NAXJA Forum User
 
Join Date: Mar 2007
Location: illinois
Posts: 399
Re: Water Pump Replacement

I may be wrong on this so maybe someone else can confirm. If your w/p pulley is grooved (running on the inside of the belt), it would be standard rotation. If it is smooth (running outside of the belt) it would be reverse. Just match up the impellers and make sure the vanes sre facing the same way...
Reply With Quote
  #4  
Old July 3rd, 2007, 10:16
Yucca-Man's Avatar
Yucca-Man Yucca-Man is offline
NAXJA Member # 683
 
Join Date: Jul 2003
Location: Castle Rock, CO
Posts: 6,251
Re: Water Pump Replacement

You want this one:


I never really paid attention to, and forgot to put it in my cooling writeup, but I believe the 4.0L is a reverse rotation impeller.

Jim www.yuccaman.com
Reply With Quote
  #5  
Old July 3rd, 2007, 14:21
craigf craigf is offline
NAXJA Forum User
 
Join Date: May 2005
Location: New Zealand
Posts: 17
Re: Water Pump Replacement

I wouldn't replace the pump untill either it started leaking through the weep hole or if the engine began overheating. I replaced mine last weekend after 107000 Km's and apart from it weeping, the vanes were still perfect. Assuming the pump is fine and you have a good level of antifreeze in the water which does help to lubricate the bearing somewhat, the chirping you hear could come from a number of other sources (idlers, tensioners, power steering pump, aircon etc.).
Reply With Quote
  #6  
Old July 3rd, 2007, 14:25
Onkover's Avatar
Onkover Onkover is offline
NAXJA Forum User
 
Join Date: Sep 2003
Location: Red Bluff CA.
Posts: 290
Re: Water Pump Replacement

Quote:
Originally Posted by FELIX
I believe it should be an R, but can't really remember, but a reputable auto parts store will guide you in the right direction. Make sure you get a new one, not rebuilt, from a reputable parts store like Napa or such. I put 2 Pep Boy's in within 4 months. Took it back & got a Napa & it's been solid for the last 8 years. I would also say get a standard flow vs a high flow. There are 2 thoughts on this. If the coolant moves too quickly, it has less heat transfer time both in the water jackets and radiator. Others think if it flows faster, it will cool faster. I'm a believer in the first theory. The R will be on the inside blades.

Rob $.02
I am starting to think this is my issue. I am currently running a FlowKooler High Flow. I have replaced everything on the system and al still getting hot.
Reply With Quote
  #7  
Old July 3rd, 2007, 16:19
FELIX's Avatar
FELIX FELIX is offline
Who Knows, Ask Who
 
Join Date: Aug 2003
Location: Camarillo, CA
Posts: 653
Re: Water Pump Replacement

You could always try Water Wetter, this stuff actually works. It should lower your temps about 15deg.

Rob
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
Temp Light on After Water pump replacement? flash2pablo OEM Tech Discussion 4 June 29th, 2007 15:14
Water pump replacement lenny OEM Tech Discussion 6 August 18th, 2005 18:09
Water Pump Replacement JBXJ OEM Tech Discussion 2 September 11th, 2004 14:59
Ease of 4cyl water pump replacement? BlueMJ OEM Tech Discussion 4 May 12th, 2004 12:23
water pump replacement EricT OEM Tech Discussion 9 September 26th, 2003 21:37


All times are GMT -7. The time now is 07:28.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
NAXJA and NAXJA logo's Copyright NAXJA. All content/images Copyright NAXJA 1999-2014