Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Arnott
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
  #21  
Old 10-16-2020, 10:57 AM
Member
 
Join Date: Feb 2010
Location: Chicago
Posts: 334
turquise1 is on a distinguished road
Quote:
Originally Posted by andrewwynn View Post
Frequency of tick? How many ticks per revolution, figure out if it's just one cylinder or half a cylinder.

Hey Andrew,


I have already mentioned that I think. It's 300 ticks a min at 600 rpm so it's half..


Thanks,



Ozzie
__________________
X5 4.4 01
Reply With Quote

Sponsored Links

  #22  
Old 10-16-2020, 11:06 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 6,487
andrewwynn is on a distinguished road
I was sure hoping you knew that answer if you already had the vc off.

Every valve set opens every other revolution so if was a common problem on every valve even on one bank you would have a much higher frequency. Half means In or out on one piston were you able to narrow down which piston with stethoscope or phone vibration app?

The usual suspect is the lifter. Iím sure they act quite different dynamically than static and just like when chain tensioner fails, it's possible the insides wear out and it just doesn't stay tight when beat on by the cam lobe. Same as covered above if that one oil port is not supplying proper pressure to that particular lifter
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #23  
Old 10-16-2020, 11:06 AM
Member
 
Join Date: Feb 2010
Location: Chicago
Posts: 334
turquise1 is on a distinguished road
Hey Purplefade,


So you think I should put the cams on and rotate them by hand to see if there is any ticking? I thought about that but I wasn't sure if I would have enough power to rotate them. I guess I could rotate them using an open wrench from their side.


I will try and see what happens. Hopefully it would not cause any damage..


Thanks,


Ozzie
__________________
X5 4.4 01
Reply With Quote
  #24  
Old 10-16-2020, 11:11 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 6,487
andrewwynn is on a distinguished road
Turn the cam with a 27mm socket at the crank bolt. The only thing I would expect to make a noise is when the cam is allowed to advance over the top of each lobe from the spring tension. I don't think you will be able to reproduce a tap from slow turning but you may discover a short lifter if one is different from the rest. Hard to say without oil pressure
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #25  
Old 10-16-2020, 11:14 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 6,487
andrewwynn is on a distinguished road
You wouldn't want to turn the cam not in sync with the crank lest you try to overlap piston and valves.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #26  
Old 10-16-2020, 11:17 AM
Member
 
Join Date: Feb 2010
Location: Chicago
Posts: 334
turquise1 is on a distinguished road
Hey Andrew,


The lifters all came out full of oil and none of them was collapsed but I see your point. They may certainly act differently under heavy pressure from the cam lobes. They may briefly stick and pop and make that noise. To test that I actually tried to apply extra pressure on each to see what happens but did not see a collapse.


I will try what Purplefade recommended to see if I can simulate the problem by rotating the cams by hand.


Thanks again,


Ozzie
__________________
X5 4.4 01
Reply With Quote
  #27  
Old 10-16-2020, 11:20 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 6,487
andrewwynn is on a distinguished road
When you squeezed the lifters did you have a caliper on to measure the lengths? You would not feel the difference that will cause a tick with your fingers. You'd be looking for a couple 1/000 of inch difference.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #28  
Old 10-16-2020, 11:20 AM
Member
 
Join Date: Feb 2010
Location: Chicago
Posts: 334
turquise1 is on a distinguished road
Quote:
Originally Posted by andrewwynn View Post
You wouldn't want to turn the cam not in sync with the crank lest you try to overlap piston and valves.

You are right on that as well. So it would have to have the timing chains back on and correctly timed for that to avoid harming the valves. Thanks for the warning..


Ozzie
__________________
X5 4.4 01
Reply With Quote
  #29  
Old 10-16-2020, 11:31 AM
Member
 
Join Date: Feb 2010
Location: Chicago
Posts: 334
turquise1 is on a distinguished road
Quote:
Originally Posted by andrewwynn View Post
When you squeezed the lifters did you have a caliper on to measure the lengths? You would not feel the difference that will cause a tick with your fingers. You'd be looking for a couple 1/000 of inch difference.

I tried to squeeze each and did not feel or see any movement. I thought there would be big movement to make such a loud tick.
I did not measure with a caliper. I guess I can try that as well..


Thanks,


Ozzie
__________________
X5 4.4 01
Reply With Quote
  #30  
Old 10-16-2020, 11:33 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 6,487
andrewwynn is on a distinguished road
Loud tick in valve train world is 0.004". If you could feel the difference it would sound like marbles were being shot around in the valve train.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
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 04:31 PM.
vBulletin, Copyright 2020, 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.