Going to rebuild the VANOS...should I also replace the timing chain tensioner? - E46Fanatics 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!

Thread Tools Search this Thread Rate Thread Display Modes
Old 04-20-2015, 12:47 AM   #1
Registered User
Join Date: Apr 2015
Location: Utah
Posts: 6
My Ride: 2001 e46 330xi Manua
Going to rebuild the VANOS...should I also replace the timing chain tensioner?

Should I preemptively replace the timing chain tensioner when rebuilding the VANOS or would it just be a wait of time and money?

I have got a 330xi with M54 engine and 143K miles, manual trans. It came with only ok service records but the price was right and I do all my own work.

I know the Valve Cover Gaskets/brakes were just done about 10K miles ago. I am planning on doing the VANOS soon and just did all the other things (water pump/radiator/reservoir/hoses/thermostat/fluids/filters). It makes some ticking noises but I am guessing its either the VANOS or just normal sounds of the lifters...nothing too bad. I figure since I will have the Valve Covers off anyways, I might want to consider the top timing chain tensioner? Anything else I should consider besides the typical VANOS kit?

If I cant get to it from just having the valve covers off I don't plan to do it. So I don't plan to replace the actual chain or any guides or do any adjustments to head unless I find serious problems once I am in there.

I hope this is not a repeat thread, I tried searching could not find much on the timing chain tensioner failure....but then again that may be my answer, they don't fail?

Last edited by WeekenderNutJob; 04-20-2015 at 01:26 AM.
WeekenderNutJob is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 04-20-2015, 09:03 AM   #2
David F
Registered User
Join Date: Jul 2009
Location: Austin, TX
Posts: 549
My Ride: 323i, 740iL, 633CSi
Does the chain rattle? If not, leave well enough alone. It is not a big deal to change the tensioner regardless of doing the VANOS or not. Neither is related/dependent on the removal of the other in order to change. Also, you don't hear about cam chain tensioner (top) failures, if ever. So, I wouldn't do it either. When you have the valve cover off, push hard on the top chain tensioner...it should be very firm. Ticking noise maybe the injectors you are hearing.

The VANOS can cause a "rattling" noise, not usually a "ticking" noise.
David F is offline   Reply With Quote
Old 04-20-2015, 09:47 AM   #3
Registered User
Join Date: Aug 2011
Location: oregon
Posts: 491
My Ride: bmw 325i
You will know you need a timing chain job. At 143 I doubt you do.
A mechanical hobbyist and car enthusiast
1971 Datsun 240z Devil Z red
1999 740il Titanium Silver
2004 BMW 325i CW,PP and Sports Package
1996 toyota avalon-263,000-Sold
2003 Lexus Is300-Sold
2000 Acura TL-Sold
2000 Accord 5 speed-Sold
Loaded325i is offline   Reply With Quote
Old 04-20-2015, 05:32 PM   #4
Registered User
Join Date: Jun 2010
Location: CT
Posts: 2,133
My Ride: 2001 325i
Agree, unless there's an issue, you don't need to fuss with it.
Sansho is offline   Reply With Quote

2001 330xi, m54, timing chain tensioner, vanos

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 09:28 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
(c) 1999 - VerticalScope Inc. All rights reserved.