98 outback timing belt inquiries... - Subaru Outback - Subaru Outback Forums

SubaruOutback.org is the premier Subaru Outback Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Rate Thread
Old 04-07-2011, 05:02 PM   #1 (permalink)
Registered User
 
Join Date: Apr 2011
Location: STL , MO
Car: 98 Subaru Outback Legacy Wagon 2.5 DOHC Automatic
Posts: 4
Feedback Score: 0 reviews
Question 98 outback timing belt inquiries...

VEHICLE:
Ok. so I'm working on my friend's 98 subaru outback legacy wagon with the 2.5 DOHC motor with an automatic trans.

HISTORY:
A couple of years ago, we pulled this motor and put new headgaskets on it as well as a water pump and timing chain. What we did NOT do at the time was to replace any of the idler pullies or tensioner. Of course, while we were at it, we did the plugs and wires since they are such a bitch to get to. So, we got it all back together and up and running. THEN, fast forward to 6 months later... He's running down the highway in the fast lane and all of the sudden the car dies. He coasts to the shoulder and tries to restart. It stumbles but will not start. Then, the car gets towed to his house, sits a year, and now I'm finally getting back to working on it.

CURRENTLY...:
So I checked for fuel and spark and both and they both seem up to par. I was starting to wonder what was next when I thought to check the timing belt. So I pulled off the outside shrouds ( I have yet to pull the center one because I need to get the crank pulley off) and found a few things . 1st. The timing belt has been rubbing against something and was shedding off from the front of the car side of the belt (it is now thinner). 2nd. the timing marks on the drivers side bank are no longer lined up. I am getting ready to pull the crank pulley and get a more detailed look at all 4 cam pulleys and crank pulley marks for comparison.

My Questions:
1. The timing belt did slip. But only a bit (as the marks aren't to terribly off) and this is an interference engine, isn't it reasonable to assume that the engine will probably be ok once I get a new timing belt on and lined up? Maybe thats wishful thinking.
2. If the outcome is promising, this time I am going to get a full timing belt, tensioner, idler pulley kit and do it up right. Does anyone have any recommendations on the best quality kit per the best price?
3. What could have caused this belt to rub itself narrower? Is this a common occurence? The belt is obviously narrower than the cam sprockets yet it is guided by the crank pulley so once turning, it should line up with that pulley and stay in a correlating position on all of the other sprockets. Does this 'ring any bells' for anyone out there? Maybe I have missed something here?
my_buddies_subie is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 04-07-2011, 05:53 PM   #2 (permalink)
Registered User
 
Join Date: Apr 2011
Location: STL , MO
Car: 98 Subaru Outback Legacy Wagon 2.5 DOHC Automatic
Posts: 4
Feedback Score: 0 reviews
Default

Ok. I did get the crank pulley and the center shroud off. I of course noted further "belt sheddings" in the center shroud cover. I turned the crank and attempted to line up the marks. I found that they all would line up perfectly except for the drivers side top cam which looks to be 2-3 teeth off (roughly at the 11 o'clock position). Again, I would think that this would be a minimal amount as far as the interference issue. I am also now thinking that replacing these worn idlers would fix the belt shredding issue? It seems to me that if the bearings were going out in one or more idlers, they might have a tendency to wobble and thus push the belt to one side of the group of sprockets and thus start eating into the belt? Just an idea. Pics to follow....
my_buddies_subie is offline   Reply With Quote Quick reply to this message
Old 04-07-2011, 10:39 PM   #3 (permalink)
Registered User
 
Wagondude's Avatar
 
Join Date: Mar 2009
Location: home of the Jayhawks
Car: 2010 OBW limited 2.5 CVT
Posts: 1,406
Feedback Score: 0 reviews
Default

Yep. Idlers and tensioner, all front engine seals seal the oil pump. BTW the lower cogged idler by the water pump has the most tension on it and is the most common to fail (this from the guy at my dealer service center). At the very least replace that one and the tensioner every belt change. If it's only 2-3 teeth you should still be ok as far as the valves go.
__________________
My other car is a Subaru.... Come to think of it, so is my other other car
Wagondude is offline   Reply With Quote Quick reply to this message
Old 04-08-2011, 08:04 PM   #4 (permalink)
Registered User
 
Join Date: Apr 2011
Location: STL , MO
Car: 98 Subaru Outback Legacy Wagon 2.5 DOHC Automatic
Posts: 4
Feedback Score: 0 reviews
Default

Awesome! I thought that I was on the right track. I found a good kit on ebay today with the belt, sprocket idler, hydraulic tensioner/idler, and other 2 idlers. I ordered it and now its time to play the waiting game. I was thinking of maybe changing the diff fluid in this guy. I'm not sure that its ever been done! At least not on my watch anyway. I will also definitely check those front seals before I redo the timing belts and pulleys. I thought we did em last time, but I DID see a bit of oil underneath the crank pulley area. Must double check...
Here are the links to a few pics of the "current belt situation":
https://picasaweb.google.com/lh/phot...eat=directlink
https://picasaweb.google.com/lh/phot...eat=directlink
https://picasaweb.google.com/lh/phot...eat=directlink
my_buddies_subie is offline   Reply With Quote Quick reply to this message
Old 04-12-2011, 09:49 PM   #5 (permalink)
Registered User
 
Join Date: Jan 2011
Posts: 13
Feedback Score: 0 reviews
Default

Its around 30 bucks for all 5 seals and their easy to replace, dont forget to losen the cam bolts before pulling the old belt off. I just did mine last week. The two pulleys on the drivers side are spring loaded when #1 is TDC and tended to spin out of time while I was trying to put new belt on. You can turn the top (IN) cam clockwise back and the bottom (EX) counterclockwise back to line up marks. Also the haynes manual and several threads here said to put idler pulley on last, I found this was not the case with mine I bolted up all pulleys and leaving the tensioner and t-pulley loose we lined up marks on new belt and pulleys I then moved tensioner toward belt and tightened up the two bolts released tension and tightened tensioner pulley. I also put loctite on all bolts especially the crank bolt as this had come loose and caused a major FU. I found and bought an ebay timing belt kit too, it cost 104 dollars plus 30 overnite, subaru wanted 100 bucks for belt alone.
billk is offline   Reply With Quote Quick reply to this message
Old 07-02-2011, 10:02 AM   #6 (permalink)
Registered User
 
Join Date: Apr 2011
Location: STL , MO
Car: 98 Subaru Outback Legacy Wagon 2.5 DOHC Automatic
Posts: 4
Feedback Score: 0 reviews
Default

The new timing belt and idler pulley / tensioner set did the trick. The original problem turned out to be the timing belt slipping a few notches (but not seriously. Only enough to run the engine out of time - to the degree of not running). This was due to replacement of the timing belt minus new idler pulleys and tensioner set. The bearings were starting to freeze up and the belt started slipping.
Turns out a new gasket set for the plastic timing cover was needed as well. the old one was completely gone in some places and it was causing the timing belt / idlers to start wearing on the plastic cover itself!
my_buddies_subie is offline   Reply With Quote Quick reply to this message
Old 03-19-2012, 11:57 AM   #7 (permalink)
Registered User
 
Join Date: Jan 2012
Posts: 3
Feedback Score: 0 reviews
Default

can you show me what link opn ebay for the timming kit i may have to do mine soon

thx
yazmo is offline   Reply With Quote Quick reply to this message
Old 03-19-2012, 12:09 PM   #8 (permalink)
Registered User
 
Join Date: May 2009
Location: WV
Car: OBW H6 VDC, H6 OB Sed, XT6's
Posts: 5,330
Feedback Score: 1 reviews
Default

just type in
Subaru EJ25 timing belt kit
or anything similar to that, there are tons of them out there, just do a search and find what you want.

i prefer the quality of theimportexperts stuff, the belts seem better, but they are more expensive. if you call them they'll put together anything you want - timing kits, seals, and their serpentine belts are extremely cheap.
__________________
H6 VDC OBW, H6 OB Sedan, XT6's, castrated LSi - FWD EJ18
grossgary is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply


Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Subaru Outback - Subaru Outback Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 01:20 AM.



Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.2
Copyright 2009-2010 SubaruOutback.org. All Rights Reserved.