E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 10-22-2012, 02:48 PM   #1
evo7
Registered User
 
Join Date: Sep 2011
Location: TX
Posts: 71
My Ride: 330i
Replacing only the pulley, not tensioner?

I have a 2001 330ci. The A/C tensioner is mechanical, the waterpump tensioner is hydraulic. Is it ok to replace only the pulley on the tensioners?

The whole A/C tensioner is $43. The pulley only is $20
I can't find waterpump hydraulic tensioner anywhere, but the I found the pulley only for $30.

Last edited by evo7; 10-22-2012 at 02:58 PM.
evo7 is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 10-22-2012, 02:52 PM   #2
Mango
Over 15,000 visitors
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,450
My Ride: M54B30
See sig with professional links. Do it all.

Yes you can do pulleys separate. The pulley you need is branded Dayco. Check my link

Amazon.com - Dayco 89133 Pulley
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS

Last edited by Mango; 10-22-2012 at 02:53 PM.
Mango is offline   Reply With Quote
Old 10-22-2012, 03:00 PM   #3
evo7
Registered User
 
Join Date: Sep 2011
Location: TX
Posts: 71
My Ride: 330i
Quote:
Originally Posted by E46Mango View Post
Is the same pulley can be used for both the A/C and main tensioner? My main tensioner is hydraulic, does that make a difference?
evo7 is offline   Reply With Quote
Old 10-22-2012, 03:00 PM   #4
Zell
Registered User
 
Zell's Avatar
 
Join Date: Jun 2009
Location: Such City
Posts: 5,627
My Ride: '02 Dogemobile Shibe
Yep. That's what most people do.
__________________
Zell is offline   Reply With Quote
Old 10-22-2012, 03:24 PM   #5
Mango
Over 15,000 visitors
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,450
My Ride: M54B30
Your a/c will be dayco. the other tensioner will be OEM from any vendor site.
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS
Mango is offline   Reply With Quote
Old 10-22-2012, 03:24 PM   #6
Mango
Over 15,000 visitors
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,450
My Ride: M54B30
i need to do a thread on pulleys, don't i
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS
Mango is offline   Reply With Quote
Old 10-22-2012, 03:35 PM   #7
evo7
Registered User
 
Join Date: Sep 2011
Location: TX
Posts: 71
My Ride: 330i
Quote:
Originally Posted by E46Mango View Post
Your a/c will be dayco. the other tensioner will be OEM from any vendor site.
Thanks. I just read your thread, and DMAX mentioned the Dayco 89046 for the main tensioner pulley. On pelicanparts.com, it listed this INA pulley. Are they both the same?

Also, correct me if I'm wrong. To remove the tension or to replace the pulley on the main tensioner, I need a T50. Is that the same for the A/C pulley? Im running to the parts store in a bit to grab a T50.

Last edited by evo7; 10-22-2012 at 03:38 PM.
evo7 is offline   Reply With Quote
Old 10-22-2012, 03:38 PM   #8
Mango
Over 15,000 visitors
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,450
My Ride: M54B30
Yeah. Just go w/ INA. order it w/ the rest of your cooling parts. Either is fine though.
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS
Mango is offline   Reply With Quote
Old 10-22-2012, 03:42 PM   #9
BMWCaptain
Registered User
 
Join Date: Sep 2011
Location: TEXAS - Where I give Real World advice and don't just criticize others. People here need to RESPECT other's opinions!
Posts: 1,600
My Ride: 03 325iT SportWagon
The pulleys have been what goes bad most of the time. I have yet to see anyone who has a spring tensioner go bad.

It is a lot cheaper to just replace the pulley for $19, than the whole pulley at $50+.
BMWCaptain is online now   Reply With Quote
Old 10-22-2012, 03:54 PM   #10
Mango
Over 15,000 visitors
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,450
My Ride: M54B30
Quote:
Originally Posted by BMWCaptain View Post
The pulleys have been what goes bad most of the time. I have yet to see anyone who has a spring tensioner go bad.

It is a lot cheaper to just replace the pulley for $19, than the whole pulley at $50+.
I have. Lots of them. I'll post some pictures soon of some broken ones. It's good PM and one of the few things I still need to do!
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS
Mango is offline   Reply With Quote
Old 10-22-2012, 05:25 PM   #11
dmax
Registered User
 
dmax's Avatar
 
Join Date: Aug 2006
Location: NJ
Posts: 22,774
My Ride: '99 328i 1.04646 mu
Replace the idler pulley too. If one is bad, they all will be soon.

Autozone has Dayco pulleys, as said, they're OEM...INA.

Mechanical and hydraulic tensioners do take different pulleys...doesn't matter if they're on the AC or ACC belts. If tensioner is different, the pulley will be.

T-50 is it for many pulleys, but some have a different bolt (hex head), and who knows, you're might be something completely different installed by someone at some point. You have to look and feel. A number here have stripped bolt heads, undoubtedly because they didn't look or test.

Easy repair. Don't forget to either get new belts or put your old ones back on in the same direction they're in now.
__________________


Performing at the Comedy Cove--595 Morris Ave. Springfield NJ reservations 973 376-3840

A recent set

dmax on the radio every Wednesday 7-9 p.m. NYC time. Call in! (661) 449-9340 watsonnwatson.com
dmax is offline   Reply With Quote
Old 10-22-2012, 07:11 PM   #12
evo7
Registered User
 
Join Date: Sep 2011
Location: TX
Posts: 71
My Ride: 330i
Thanks alot guys. It stopped raining so I was able to go outside and take a look. The adjusting pulley is a torx bolt, which is a T50 I assume. The a/c side is a hex bolt. Any ideas what size is that hex bolt?
evo7 is offline   Reply With Quote
Old 10-22-2012, 07:24 PM   #13
BMWCaptain
Registered User
 
Join Date: Sep 2011
Location: TEXAS - Where I give Real World advice and don't just criticize others. People here need to RESPECT other's opinions!
Posts: 1,600
My Ride: 03 325iT SportWagon
Probably 16mm. I use 16mm to pull back the pulleys when changing the belt.
BMWCaptain is online now   Reply With Quote
Old 10-22-2012, 07:44 PM   #14
Alex323Ci
Registered User
 
Join Date: Jan 2005
Location: Huntington Beach -Surf City USA
Posts: 16,797
My Ride: M3 & 323Ci (sold)
Quote:
Originally Posted by evo7 View Post
Thanks alot guys. It stopped raining so I was able to go outside and take a look. The adjusting pulley is a torx bolt, which is a T50 I assume. The a/c side is a hex bolt. Any ideas what size is that hex bolt?
funny because after working on bmws for decades i can usually just go in my garage and look at some parts. so i just did. if you're talking about the mechanical tensioner bolt that holds the pulley on it's also a T50 torx. but bmw may have changed it over the years if yours is a Hex head.
__________________
OE CSL WHEELS - OE CSL BRAKES - OE AUTOFOLD MIRRORS - CSL TRUNK - CSL DIFFUSER - AA SPORT TUNE - AA PULLEYS - BILSTEIN PSS9s - AS 40% SSK
CF CSL RACE LIP - NAVI - BMW PERF CF STRUT BAR - BMW GROUP N MNTS - GRUPPE M CF INTAKE - SUPERSPRINT - UUC SS BRKLINES, TRANS MNTS, RTABs - 4.10 M-SPORT DIFF
Alex323Ci is offline   Reply With Quote
Old 11-14-2012, 04:43 PM   #15
Devious1
Invalid User
 
Join Date: Jul 2002
Location: Cerritos, CA
Posts: 10,829
My Ride: 330ci
Send a message via AIM to Devious1
after reading all these threads, i was still kind of lost... but i did mine over the weekend and the hydraulic tensioner pulley is indeed a hex bolt, but ive been using a T50 to loosen it for quite some time now and it works.

parts needed:
hydraulic tension pulley - dayco 89046
ac pulley- dayco 89133
idle pulley - 89089

* some might get confused on which pulley is for the mech ac and hydraulic tensioner, because i certainly did.

this pulley is for the hydraulic tensioner and used the hex bolt. so naturally, the othe pulley is for the mechanical ac and used the torx bolt.
__________________

Last edited by Devious1; 11-14-2012 at 04:50 PM.
Devious1 is offline   Reply With Quote
Old 11-14-2012, 04:55 PM   #16
328iguy24
Registered User
 
Join Date: Sep 2011
Location: Poconos
Posts: 103
My Ride: e46 328i
While your at it you might as well just replace the tensioner and water pump along with belts imo.
328iguy24 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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 On
Censor is ON





All times are GMT -5. The time now is 07:58 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use