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 08-28-2019, 12:50 PM
Liamk's Avatar
Member
 
Join Date: Nov 2018
Location: Halifax, Uk
Posts: 20
Liamk is on a distinguished road
Bad vanos solenoid symptoms?

Hi to cut a very long story short I have just rebuilt the top end of my 4.6is engine, headgaskets, head skimmed, valve seats and seals, full gasket kit, head oil check valves, pcv valve, vanos upgraded seals, thermostat and water pump. Despite doing this I still have a vanos rattle on bank 2 on initial start up and an annoying lumpy idle, not a full on miss more of a weak fire, under load there is plenty of power no misses etc. I have checked all vacuum lines and replaced ones that looked iffy. Upon scanning I get the code saying camshaft timing over retarded bank 2. This code was present before I stripped the heads and after been deleted has come back with the new assembly. The timing was definitely setup 100% correct with the proper tooling. So Iím wondering if the vanos solenoid is faulty on bank 2? Any thoughts?
Reply With Quote

Sponsored Links

  #2  
Old 08-28-2019, 03:13 PM
Member
 
Join Date: Nov 2014
Location: SF Bay Area
Posts: 872
oldskewel is on a distinguished road
Nice work on all that.

When you rebuilt the VANOS, did you replace the "rattle rings" as well as the gaskets?

I did those, even without symptoms, when doing a similar job as you did on my M54B30 last summer. The rattle rings are slightly thinner than the ones they replace. This allows things to tighten up, accounting for the slop in everything else that developed over the life of the system, and getting rid of any VANOS rattle.

And BTW, I did not touch the VANOS solenoids. Everything still fine at 190+k miles. But I know at that level, the M54 will be different from your 4.6.
__________________
2001 X5 3.0i, 190k miles, AT, owned since 2014
Reply With Quote
  #3  
Old 08-28-2019, 03:33 PM
Member
 
Join Date: Apr 2009
Location: Columbus, Ohio
Posts: 503
Purplefade is on a distinguished road
Swap the vanos solenoid from Bank 1 to Bank 2 and Bank 2 to Bank 1 and see if the code follows the solenoid.
Reply With Quote
  #4  
Old 08-29-2019, 01:10 AM
Liamk's Avatar
Member
 
Join Date: Nov 2018
Location: Halifax, Uk
Posts: 20
Liamk is on a distinguished road
Hi yes I will try that, although I need to manufacture a socket to fit the solenoids as weirdly the one that came with the timing kit doesnít fit over the body of the solenoids, but I worked around it by taking the timing covers off and removed them with a spanner 😳
Reply With Quote
  #5  
Old 08-29-2019, 01:13 AM
Liamk's Avatar
Member
 
Join Date: Nov 2018
Location: Halifax, Uk
Posts: 20
Liamk is on a distinguished road
I didn’t replace the rattle shims as I couldn’t see a way of dismantling the vanos and couldn’t afford risking breaking it altogether ��
Reply With Quote
  #6  
Old 08-29-2019, 12:19 PM
Member
 
Join Date: Nov 2014
Location: SF Bay Area
Posts: 872
oldskewel is on a distinguished road
Quote:
Originally Posted by Liamk View Post
I didnít replace the rattle shims as I couldnít see a way of dismantling the vanos and couldnít afford risking breaking it altogether ��
I don't have any experience on this other than with my own car, but it sounds like you've got the "VANOS rattle" (your words), and this is the standard fix for that problem.

I know at this point, replacing those little rings is far more involved than doing something with the solenoids so hopefully there is an easier solution for you.

And if you ever do get down into those rings, it's kind of amazing how little difference there is between the old vs. new parts. The new ones are a couple of tenths of a millimeter (guessing, from memory) thinner than the old ones, but that enables the bearings to be properly loaded with not excessive free play. Once I got to that point, I realized I could have just sanded off that small amount, but had already bought the new ones. The installation procedure actually allows for sanding of the new ones to thin them further if more adjustment is needed.
__________________
2001 X5 3.0i, 190k miles, AT, owned since 2014
Reply With Quote
  #7  
Old 08-29-2019, 02:02 PM
Liamk's Avatar
Member
 
Join Date: Nov 2018
Location: Halifax, Uk
Posts: 20
Liamk is on a distinguished road
Thanks for the response, I have ordered a new solenoid which should be here by the weekend so fingers crossed. I will update my results, wish me luck!
Reply With Quote
  #8  
Old 09-01-2019, 10:04 AM
Liamk's Avatar
Member
 
Join Date: Nov 2018
Location: Halifax, Uk
Posts: 20
Liamk is on a distinguished road
So fitted the new solenoid yesterday. Homemade vanos socket worked a treat! The rattling is dramatically better on cold start this morning, and overall drivability was a lot better, although it still runs a little rough on idle. Tested the old solenoid and it does nothing so it was toast, new one clicked when 12v applies. Also came out this morning and there is antifreeze dripping from somewhere, I can’t believe the pressure they run at, no wonder coolant leaks are quite common!
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 07:15 PM.
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.