Idler pulley/S-belt questions. Plus 'what is this part' - The Saab Link Forums

Go Back   The Saab Link Forums > Saab NG900 '94-'98 and 9-3 '99-'02 Forum > General NG900 / Old 9-3 Posts and Information

General NG900 / Old 9-3 Posts and Information Please post general topics pertaining to the NG900 and old 9-3.

SaabLink.net is the premier Saab Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 03-30-2009, 08:34 PM   #1
Ero
Live, eat, and sleep by TSL
 
Join Date: Jan 2009
Location: NYC
Posts: 1,043
Idler pulley/S-belt questions. Plus 'what is this part' -- UPDATED SEE LAST POST

1)


The rusted thing in the middle of the pic.

It seems awefully rusted compared to everything else around it.



2) How do you tell if your idler pulley is on the verge of failing completely? My car has been making a scraping noise for a month or two that i've narrowed down to probably being one of the pulleys.

How can I test which one is bad, and how hard is it to change a pulley and the s-belt? I'm taking a trip to VA in a few weeks and would really hate to get stranded on I-95, so i wanna know for sure if its the pulley, and to install a new pulley and belt.

How long do you guys think a loud pulley can go for before blowing up and stranding me?

Any tutorials for it online? And what's a good place to buy the pulleys from?

Last edited by Ero; 05-26-2009 at 07:04 PM.
Ero is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-30-2009, 08:49 PM   #2
Elder
 
Moreboost's Avatar
 
Join Date: Jul 2008
Location: Dirty Jersey
Posts: 3,739
Send a message via AIM to Moreboost
lol the rusted thing is your wastegate, google it, its apart of the turbo system. A lot of wastegates are rusty its alright,

As far as the pulley is concerned, you never know it can go 2morrow or it may go in a month, the best thing to do is, take off the belt and rotate each pulley by hand, the idler pulley should spin freely, make sure none of the other pulleys are binding

Here is the step by step guide, i recently changed the idler pulley and belt on my sisters 9-3, really easy and straight forward

Quote:
Originally Posted by Thesaabsite
1. Remove the Air Cleaner and slide it to the side
2. Relieve belt tensioner by prying in the tensioner hole with a long ratchet extension.
3. Once the tension is removed insert a 6 mm drill bit in the tensioner holder hole.
4. Remove the belt making notes on how the belt is routed!
5. Remove the right front wheel and remove the inner fender and remove the drive belt
6. Reinstall in reverse of 1-5. Crank car and check belt to be sure belt is positioned correctly!

EDIT:

Its actually your wastegate ACTUATOR

thanks Palmer <3
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by Moreboost; 03-31-2009 at 03:13 AM.
Moreboost is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 03:15 AM   #3
Elder
 
Moreboost's Avatar
 
Join Date: Jul 2008
Location: Dirty Jersey
Posts: 3,739
Send a message via AIM to Moreboost
Here is the diagram of how the belt is run



This is what happens when the idler pulley seizes and breaks, notice the melted rubber lol







You dont want this to happen on your trip, i say replace it now before it breaks and leaves you stranded

Order your stuff from Eeuro, youll have it the next day, 2 days max

__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by Moreboost; 03-31-2009 at 03:20 AM.
Moreboost is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
 
Old 03-31-2009, 01:08 PM   #4
Moderator
Elder
 
Tweek's Turbos's Avatar
 
Join Date: Dec 2003
Location: Northern VA
Posts: 10,303
Send a message via AIM to Tweek's Turbos
If you do shit out on I95 in VA, let me know.

When my Tensioner idler went, it made a high pitched screach, louder louder and then went away. Thats when it gave up.

I would loosen the belt, and see if the pulley has a little bit of resistance (good) vs no resistance at all (bad).
__________________
Quote:
Originally Posted by Delorean
- pretend you are watering delicate plants...
Quote:
Originally Posted by SAABseanSCANIA
can be prone to failure due to increased localized stresses in the hole penetrations
Tweek's Turbos is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 04:11 PM   #5
Ero
Live, eat, and sleep by TSL
 
Join Date: Jan 2009
Location: NYC
Posts: 1,043
Would broken pulleys rattle? I spoke to my indie and he said they generally squeak. I wanna be sure before I go taking it all apart.
Ero is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 04:13 PM   #6
Elder
 
Moreboost's Avatar
 
Join Date: Jul 2008
Location: Dirty Jersey
Posts: 3,739
Send a message via AIM to Moreboost
they squeak or make a whining noise, rattle may just be something loose, try to spray some silicone belt dressing if the noise goes away, its could then possibly be a pulley that needs to be replaced
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Moreboost is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:07 PM   #7
Ero
Live, eat, and sleep by TSL
 
Join Date: Jan 2009
Location: NYC
Posts: 1,043
Whats interesting is that some are saying they squeak, and others are saying they don't, but sound more like a "bag or rocks".

The sound I get can closely be described as plasticy -- closest analogy I can get is tapping your fingernails on the steering wheel cover repeatedly.
Sound increases with revs, even in neutral and park, which makes me look at idler pulleys.
Ero is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:11 PM   #8
srp
Elder
 
srp's Avatar
 
Join Date: Sep 2006
Location: Northwestern NJ
Posts: 5,111
Send a message via AIM to srp
When my alternator went it sounded like sand paper or "bag of rocks".

I'd think any rotating object that uses bearings can fail either way. ball bearings wear down and the tolerances open up, thus they bounce around. Or the grease leaks out and they begin to seize so they squeal.
srp is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:31 PM   #9
Ero
Live, eat, and sleep by TSL
 
Join Date: Jan 2009
Location: NYC
Posts: 1,043
Would these be the parts I need?

http://www.eeuroparts.com/Main/PartD...px?id=4968590A
http://www.eeuroparts.com/Main/PartD...px?id=5172309A
http://www.eeuroparts.com/Main/PartD...spx?id=4961066

I don't need to get the tensioner, right? This one:
http://www.eeuroparts.com/Main/PartD...spx?id=4898755
Ero is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:33 PM   #10
Elder
 
Moreboost's Avatar
 
Join Date: Jul 2008
Location: Dirty Jersey
Posts: 3,739
Send a message via AIM to Moreboost
yes bag of small rocks getting thrown around everywhere
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by Moreboost; 03-31-2009 at 07:40 PM.
Moreboost is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:37 PM   #11
srp
Elder
 
srp's Avatar
 
Join Date: Sep 2006
Location: Northwestern NJ
Posts: 5,111
Send a message via AIM to srp
Yeah that's what you need. The two pulleys and the belt.
If your original belt and pulleys are still "ok" then throw them in a bag and throw it in the spare tire well

As for the tensioner... How many miles on the current one?
srp is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:41 PM   #12
Avid TSL User
 
beardedmayhem's Avatar
 
Join Date: Jan 2008
Location: New York
Posts: 232
Can't the idler pulley be bypassed completely, and the Audi belt used? I thought I read that somewhere. Mine is starting to make noise, so I was looking into it. Any thoughts on whether this is a good idea?
beardedmayhem is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:42 PM   #13
Elder
 
Moreboost's Avatar
 
Join Date: Jul 2008
Location: Dirty Jersey
Posts: 3,739
Send a message via AIM to Moreboost
Quote:
Originally Posted by beardedmayhem View Post
Can't the idler pulley be bypassed completely, and the Audi belt used? I thought I read that somewhere. Mine is starting to make noise, so I was looking into it. Any thoughts on whether this is a good idea?
i believe thats the center pulley, ill try to find a link for yah

edit: here you go

http://www.thesaabsite.com/900new/NG...eplacement.htm
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Moreboost is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:43 PM   #14
srp
Elder
 
srp's Avatar
 
Join Date: Sep 2006
Location: Northwestern NJ
Posts: 5,111
Send a message via AIM to srp
Quote:
Originally Posted by Moreboost View Post
i believe thats the center pulley, ill try to find a link for yah
Yah. NG's have a center idler pulley. 9-3's don't have this setup.
srp is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:43 PM   #15
Ero
Live, eat, and sleep by TSL
 
Join Date: Jan 2009
Location: NYC
Posts: 1,043
I think 9-3's came from the factory bypassing the center pulley (short-belt modded)...maybe it was post-2000 9-3's.

Quote:
Originally Posted by srp View Post
Yeah that's what you need. The two pulleys and the belt.
If your original belt and pulleys are still "ok" then throw them in a bag and throw it in the spare tire well

As for the tensioner... How many miles on the current one?
89K
Ero is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:45 PM   #16
Avid TSL User
 
beardedmayhem's Avatar
 
Join Date: Jan 2008
Location: New York
Posts: 232
I have a 1999 9-3, and I am pretty sure it has one. I just replaced my third DI cassette. Almost to 200k miles! Going to check the pulleys tomorrow.
beardedmayhem is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 03-31-2009, 07:46 PM   #17
Elder
 
aireeca's Avatar
 
Join Date: Oct 2005
Location: In a bowl. Looking delicious.
Posts: 7,067
Send a message via Yahoo to aireeca
Quote:
Originally Posted by Ero View Post
I think 9-3's came from the factory bypassing the center pulley (short-belt modded)...maybe it was post-2000 9-3's.
Yes. You are correct - there is no center idler on the later 9-3s. You can bypass the ac compressor on your car, should it decide to poop the bed. I highly recommend keeping a Tweek around. He shortbelted my 2001 9-3 car more than a year ago when the compressor pulley started screaming like a banshee.

Last edited by aireeca; 03-31-2009 at 07:48 PM.
aireeca is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 04-01-2009, 09:06 AM   #18
Ero
Live, eat, and sleep by TSL
 
Join Date: Jan 2009
Location: NYC
Posts: 1,043
I bought a stethoscope thingy...

listened to my pulleys... to the best of my ability....pulleys sounded fine to me, so i dunno, now i'm lost.
I suppose the car wasn't making the scraping sound though, so maybe i'll drive around with my stethoscope and do it in my college parking lot if it does it again (wont i look like an idiot!)

If not, I guess i'll take off the s-belt and listen to em by spinning them manually.

So much for this being an easy diagnosis =/
Ero is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 04-01-2009, 09:39 AM   #19
Ero
Live, eat, and sleep by TSL
 
Join Date: Jan 2009
Location: NYC
Posts: 1,043
http://www.thesaabsite.com/shop/cati...ysetup4cyl.jpg

In that picture, can someone tell me what the unlableled pulleys are?
Ero is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote Quick reply to this message
Old 04-01-2009, 09:43 AM   #20
srp
Elder
 
srp's Avatar
 
Join Date: Sep 2006
Location: Northwestern NJ
Posts: 5,111
Send a message via AIM to srp
Top Right: Power Steering Pump
Then Water Pump.
A/C Compressor should be below the water pump but does not exist in this picture.

Alternator directly below #3
srp is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
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 The Saab Link 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:
Vehicle Info.
Enter your vehicle information (year, model, mods)
Insurance
Please select your insurance company (Optional)

Log-in


Thread Tools

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 -8. The time now is 03:21 AM.


Powered by vBulletin® Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.5.2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
All content is copyright The Saab Link and it's original authors.


 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.