Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-22-2017, 07:51 AM
Member
 
Join Date: Jan 2012
Location: United States
Posts: 291
cncmastr is on a distinguished road
Do N62 motors have timing chain guide issues?

Need some help, it's not clear to me if the motors in the 4.4 and 4.8is (N62) have the same defective timing chain guide rail issues the M62 has. Is there value in preventively replacing them in the N62?
__________________
E46 M3 | E30 318is | E53 X5 4.8is | E39 530i

Reply With Quote

Sponsored Links

  #2  
Old 01-22-2017, 10:42 AM
YazX5's Avatar
Member
 
Join Date: Nov 2016
Location: Chicago
Posts: 122
YazX5 is on a distinguished road
Quote:
Originally Posted by cncmastr View Post
Need some help, it's not clear to me if the motors in the 4.4 and 4.8is (N62) have the same defective timing chain guide rail issues the M62 has. Is there value in preventively replacing them in the N62?


No biggest issue with the n62 are the valve stem seals, valve cover gasket, timing cover gasket, and the Coolant transfer pipe leaks out from the whole in front. Very rarely does the timing get messed up on those.


Sent from my iPhone using Tapatalk
__________________
2006 X5 4.4i Sport - Titansilber Metallic
Prod.date: 2006-05-22
Reply With Quote
  #3  
Old 01-22-2017, 11:10 AM
Member
 
Join Date: Feb 2014
Location: sandy UTAH
Posts: 539
squidzilla is on a distinguished road
No. Never heard of that. Check all the e60 and e65 forums as well and you will see that those n62 powered models, some with over 200k miles, have never had an issue with that.
__________________
2001 E53 X5 3.0 Auto. Silver Black Build date 10-17-2000 140k miles
2001 E46 330xi Auto. Silver/Black Build Date 11-30-2000 136k miles
2004 E60 545i Sport 6MT. Black/Black Build Date 6-2004 90k miles
2003 E53 X5 3.0 5MT Silver/Black Build date 11-25-2002 92k miles
2003 E53 X5 4.6is Black/Black Build Date 8-2003 109k miles
Reply With Quote
  #4  
Old 01-22-2017, 11:35 AM
Qsilver7's Avatar
Member
 
Join Date: Oct 2012
Location: Indiana, USA
Posts: 3,354
Qsilver7 is on a distinguished road
Ditto the answers above....the N62 is a completely differnt engine vs the M62/M62TU.

Timing chain guides is NOT an issue with the N62...just like it's not an issue with the M54. The N62 is a different beast with its own special faults.

And to add to the N62 issues...would be the "intermediate levers"....a google search using "BMW N62 intermediate levers" should bring up some results as to what can occur on cold starts.
__________________
{BMW CCA Member #191509 - (for more info see: www.bmwcca.org)}
  • 2013 f06 650ix GC (1/13 build date) Black Sapphire exterior/Schwarz (black) Nappa Leather interior
  • 2006 e53 X5 4.4i (12/05 build date) Sterling Gray exterior/Schwarz (black) Dakota Leather interior
  • 1997 e38 740iL (sold) Arctic Silver
  • 1999 e39 540iT (sold) Orient Blue
  • 1995 e34 525iT (sold) Alpine White
  • 1991 e32 735iL (sold) Schwarz (black)
  • 1985 e30 325e (sold) Bronzit
Reply With Quote
  #5  
Old 01-22-2017, 09:09 PM
Member
 
Join Date: Mar 2014
Location: Douglasville
Posts: 77
maharaj1 is on a distinguished road
N62 engines do have timing chain guide issues but they are far less common than M62 failures. Say 20 M62 failures for every 1 N62 failure. N62s do have timing issues if you run them low on engine oil. We've seen several N62s jump timing and run like crap when they are run low on oil. Guides should not be an issue on an N62 provided you are keeping up with your oil change intervals using a quality oil. The N62s we do see with failed guides have been vehicles with sludged up engine internals. The guides become hard, brittle and begin to disintegrate when the oil itself begins to degrade. These are also the vehicles that we commonly see exhibiting valve stem seal issues. We have seen N62s in excess of 200k miles that don't smoke in the slightest, these are the vehicles that maintain a 5k oil change interval with a high quality synthetic and have nice golden internals when you do have to open them up.
__________________
2004 BMW X5 4.4i-Sports Package-Premium-140,000 Miles
Reply With Quote
  #6  
Old 09-19-2017, 05:45 AM
Member
 
Join Date: Mar 2015
Location: UK
Posts: 26
Lion Heart is on a distinguished road
Very interesting post guys!!!

I have a rattle issue and hoping for some expertise to help me diagnose...

I have a 4.8is 120k miles. There is a definite rattle that sounds like it's coming from the top of the engine. You can also hear the noise clearly from the wheel arches.

I don't think (???) it's the cam chains. I have some experience with cam chains with Audi's and with those if the cam chain followers are worn you get a rattle in initial cold start up for 2-5 seconds as the oil pressure builds up and the cam chain tension increases. After which the rattle should become far less noticeable, or disappear. If not they're about to go!

On the X5 there does not seem to be any initial rattle upon start up, but the noise becomes aparrent as the revs drop to their normal idle level (revs are higher initiall when you first start then engine and then drop to the normal idle after 1-2 minutes).

Once idling at the normal level the rattle is permanent. I guess revving would make it disappear - I'll check that later though!!

I've taken two video's to show the issue (24 and 43 seconds so kept it short and sharp!) Can you guys take a look and let me know what you think:

VIDEO 1 (inside engine bay):
https://www.dropbox.com/s/ebeiblvuf2...N2718.AVI?dl=0

VIDEO 2 (outside car and wheel arches):
https://www.dropbox.com/s/5pxhkj9nb7...N2719.AVI?dl=0

What do you think is the likely culprit here?
Reply With Quote
  #7  
Old 11-05-2019, 11:45 PM
07 X5 e70 4.8i
 
Join Date: Jul 2019
Location: Northern Virginia
Posts: 7
Bill M is on a distinguished road
Hello. I have a 07 e70 4.8i which is almost to same noise of timing chains that you had. Did you ever get your car fixed?
thanks
Bill M
Reply With Quote
  #8  
Old 11-06-2019, 10:32 AM
Member
 
Join Date: Mar 2015
Location: UK
Posts: 26
Lion Heart is on a distinguished road
Nope..

Unfortunately not. Car is now sold and never got to the bottom of it :-(
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 06:58 AM.
vBulletin, Copyright 2019, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.