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


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-03-2018, 07:32 AM
Member
 
Join Date: May 2018
Location: Estonia
Posts: 5
Lemboss is on a distinguished road
n62 camshaft adaptation INPA

Hi, i have been monitoring my engine and saw this chart which is camshaft adaptation: https://www.upload.ee/image/8101397/015.jpg

As you see ouput Bank1 and input Bank2 is out of range and keeps getting worse!

Could anyone tell me what is the cause and can it be fixed ? Could the reason be stretched chains ?
Reply With Quote

Sponsored Links

  #2  
Old 05-15-2018, 03:09 AM
Member
 
Join Date: May 2018
Location: Estonia
Posts: 5
Lemboss is on a distinguished road
Anybody ? Regarding to info i have managed to get i understand it could be the stretched chains that are causing chain timing to move. So the salvation might be to replace chains, tensioners etc or just take off valve covers set timing on hope it will run for a long time. If chains are too loose they will be scratching vanos solenoids.

Stretched chains should make noises after cold start but i am not getting any, also if to open oil filler plug and try to lift chain with fingers it lets me to lift it 2-3 mm which is not a catastrophe ?

I have been looking at camshaft adaptation values(https://www.upload.ee/image/8101397/015.jpg) for few last month and for example input Bank 2 value has raised from 137,6 to almost 140!

My question is what will happen if it goes up to 150 ? Will the engine just not start or will be not working correctly or the worst case scenario will be that piston will meet valve in the engine ?
Reply With Quote
  #3  
Old 05-15-2018, 10:06 AM
Qsilver7's Avatar
Member
 
Join Date: Oct 2012
Location: Indiana, USA
Posts: 3,001
Qsilver7 is on a distinguished road
Not to say that this is the issue...but is there a reason you're thinking "stretched chain" instead of something very common to the N62 engines like the camshaft intermediate levers?

There should be enough discussion of this topic to do a google search...a search phrase like "BMW N62 intermediate levers" should pull up some discussions on this topic.

Good luck.
__________________
(if my grammar, spelling, sentence structure is wacky...it's my dang bluetooth keyboard)

{BMW CCA Member #191509 - (for more info see: www.bmwcca.org)}
  • 2006 e53 X5 4.4i (12/05 build date) Sterling Gray exterior/Schwarz (black) interior
  • 1997 e38 740iL (3/97 build date) Arctic Silver exterior/Gray interior
  • 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
  #4  
Old 05-25-2018, 02:24 AM
Member
 
Join Date: May 2018
Location: Estonia
Posts: 5
Lemboss is on a distinguished road
Thank you for your comment, yes that also might be the problem, installed DIS v57 and did this morning intermediate lever test which was ok, also have been monitoring valve set point and eccentric shaft and given values match well real values, so it seems intermediate levers are good.

Dis some service function tests in DIS yesterday and will do some more today to see if anything changes. Also some people from other forums suspect that it might be stretched chains.

I will be replacing thermostat some time soon and i will also take out clean and check VANOS solenoids, if the chains are stretched very much the should be marks on solenoid, but i believe that will not be the case.

As i understand if chains are stretched they should be making noise at cold start (E53) but i am not getting any and they usually do not snap like chains on E70 without any worrying sounds.

I am trying to figure out in my head how major or minor this camshaft adaptation thing really is, i am not sure if you can see same info in DIS (which was official BMW software), so if you cant see this info in DIS the dealer could not see this info and this problem would never pop up until chains would be making noises at cold start ... so maybe there is no major reason to worry too much about this issue, unit i decide to change changes if i will be driving my X5 for another 50k or 100k ...
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 03:09 PM.
vBulletin, Copyright 2018, 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.