Serious Explorations Ford Explorer and Ranger Message Board
#1 Resource for Ford Explorer and Ranger Owners - By Enthusiasts, for Enthusiasts.


Ford Explorer Generation Guide

EF Swag Store 2015 Ford Explorer Forums Elite Membership Chat Room My Posts Reviews Explorer Photo Gallery
Go Back   Ford Explorer and Ranger Forums "Serious Explorations" > Ford Explorer Ranger Repair - Troubleshooting - Modifications & Detailing Forums > 2002 - 2005 Explorer Mountaineer 3rd Generation > Stock 2002 - 2005 Explorers

Notices

Stock 2002 - 2005 Explorers Questions related to non-modified 2002 - 2005 Explorers and Mountaineers. Problem solving, maintenance, TSB, service bulletins, owner reviews, specifications. Sport Trac and Sport use the 1995-2001 forum.

Rear timing chain cassette - Removal questions

Reply
 
Thread Tools
Old 07-13-2011, 03:10 PM   #1
Vette76
Maine
02 XLT 4.0L & 97 XLT 5.0L
 
Join Date: Mar 2011
Posts: 77

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
Rear timing chain cassette - Removal questions

Unfortunately, when I got everything back together after replacing the front primary timing chain and the left cassette on my 02 4.0L I had this weird suspicion that I wasn't done yet. Even after replacing the right camshaft (another story) I thought I was ready to time the camshafts and call it good.

For some reason, and I don't know why I didn't even look at doing this to begin with, I stuck my fingers down inside the back side of the right cylinder head and gently poked around to make sure there was no damage to the back timing chain cassette. To my surprise, the rear cassette had been broken all along!! I had been absolutely, unbelieveably careful to not even create tension on the back chain. To then find out it was broken in half to begin with just about set me off!! Now I'm into this thing all the way. The engines coming out baby!

After reading all the posts, I can't tell if it is necessary to undo the rear jack shaft sprocket bolt just to simply replace the rear timing cassette. It looks like a near impossible job (from the pictures) to replace the rear jackshaft sprocket and chain, though.

I also believe that you DO NOT have to take off the head to replace the rear timing chain cassette.

Do I have both of these things right?

Thanks guys! I promise that when I have this whole thing back together, I have learned a few tips along the way that will be helpful for the next poor chap who has to go through this
Vette76 is offline   Reply With Quote
( Join the Elite Explorers )

For only $20 per year you can become an Elite Explorer. Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose and fix problems yourself, and learn what modifications really work without having to experiment on your own. Elite Explorer members can change the forum "styles" to see less ads, no green underlined links, and many other benefits such as being able to store 1000 Private Messages, upload photo attachments directly to your posts and more. Join the Elite Explorers today.


Old 07-13-2011, 04:17 PM   #2
2000StreetRod
Greenville, SC
 
2000StreetRod's Avatar
2000 Sport SOHC 2WD
 
Join Date: May 2009
Posts: 7,127

Vehicle Specs

Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
head removal?

It is not necessary to remove either the left or right head to replace any timing chain related component on the SOHC V6.

It is necessary to undo the rear jack shaft sprocket bolt to replace the rear timing cassette.

SOHC V6 Engine Removal Procedure

SOHC V6 Rear Cassette Replacement

Replacing the rear cassette is not that difficult using the OTC 6488 tool set.
2000StreetRod is online now   Reply With Quote
Old 07-13-2011, 06:24 PM   #3
cjmedina
Central New Jersey
3 Explorers 01,99,99
 
Join Date: Apr 2008
Posts: 407

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If the right cassette broke and the chain jumped timing you may be looking at a valve job.

Engine will have to be removed either way for repair!
cjmedina is offline   Reply With Quote
Old 07-16-2011, 07:05 AM   #4
Vette76
Maine
02 XLT 4.0L & 97 XLT 5.0L
 
Join Date: Mar 2011
Posts: 77

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Original Poster)
Thanks Dale and CJ!

Actually, the reason why I asked if the right head had to come off for this procedure is that I've already had it off once I checked the valves then and they were all good, so I was pretty certain that if somehow the timing chain jumped a tooth on the right camshaft sprocket and over torqued the cassette (causing it to break) at least it didn't cause a valve and piston collision in the right bank. I might have dodged the big bullet on that one.

I THINK I'm ready to take the engine out and get all the cassette/timing chain work done. Just waiting to have a couple of open days to do the job. What a process!

Dale, your step by step pictorial on how to remove the engine is superb! Thank you Sir!
Vette76 is offline   Reply With Quote
Old 02-21-2012, 06:13 AM   #5
angel1970
jacksonville,florida
2000 ford explorer
 
Join Date: Feb 2012
Posts: 1

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
i have a 2000 ford explorer and need to know if i have to take engine out to fix rear cassette and chain or can i take off transmission instead ? because only the cassette is broken,happened when replacing heads on both sides.

Last edited by angel1970; 02-21-2012 at 06:25 AM.
angel1970 is offline   Reply With Quote
Old 02-21-2012, 06:34 AM   #6
cjmedina
Central New Jersey
3 Explorers 01,99,99
 
Join Date: Apr 2008
Posts: 407

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Up 2 U

The trans has to come out. The job can be done with engine in but it will be tight working on the job at hand. Also your right head may have bent valves. Did you do a compression test?
cjmedina is offline   Reply With Quote
Old 02-21-2012, 08:06 AM   #7
2000StreetRod
Greenville, SC
 
2000StreetRod's Avatar
2000 Sport SOHC 2WD
 
Join Date: May 2009
Posts: 7,127

Vehicle Specs

Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 26 Post(s)
remove engine or transmission

Why does the engine need to be removed when replacing the timing chains?
2000StreetRod is online now   Reply With Quote
Old 10-04-2012, 02:04 AM   #8
theplayer906
victorville, CA
1999 Ford Explorer
 
Join Date: Jun 2012
Posts: 4

Vehicle Specs

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
what is the name of the cap or part number for the cap that you must take off in order to access the bottom bolt of the rh timing cassette?
theplayer906 is offline   Reply With Quote
Reply

Suggest this thread to friends:



Join the "Elite Explorers" Today!



Search Explorer Forum


Top of Page

Thread Tools

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


All times are GMT -5. The time now is 08:17 PM.



US Flag
We Support Our Troops!

Explore the site!


Copyright 2014 - 1996 Rick Horwitz Photography



Ford Motor Company is not involved in the management of this site in any way.



All tips on this site are for use at your own risk and discretion.

Modifying the suspension on any vehicle will cause changes to its handling characteristics.



Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.