Mystery Washer in Oil Pan - BMW M5 Forum and M6 Forums
E39 M5 and E52 Z8 Discussion 1998-2003 Advertiser's Forum

 3Likes
Reply
 
LinkBack Thread Tools Rate Thread Display Modes
post #1 of 11 Old 16th April 2019, 04:22 PM Thread Starter
KrautHammer
Member, Sport: Off DSC: On (>50 posts)
 
KrautHammer's Avatar
 
Join Date: Sep 2017
Location: Colorado
Posts: 86
Thanks: 20
Thanked 7 Times in 7 Posts
Garage
Mystery Washer in Oil Pan

@herrubermensch
Removed my oil pan to check for timing guide debris and repair a drain plug thread that started to feel "soft." I was relieved to find no plastic debris or metal shavings at all! However I did find this rather large washer, and proceeded to panic. I see no such washer in the vicinity on the diagrams and was hoping one of the engine builder experts could chime in....Peter?

Thanks
Attached Images
       

2002 Beast Schwarz-Metallic/Blk Sport
KrautHammer is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 16th April 2019, 05:20 PM
Sailor24
M5 Expert (>4000)
 
Sailor24's Avatar
 
Join Date: Oct 2010
Location: Cobourg Ont
Age: 57
Posts: 9,758
Thanks: 986
Thanked 1,968 Times in 1,652 Posts
Stick a long magnet all the way to the back of the motor. Things don't drop and stay. Can you clean and shot two more pics of the washer on white paper, one each side, need to see marks or damage on route to the pan.
Then take one more pic on the ruler but do it on the metric side of the ruler, it is German and all the specs are in MM.
When you are done all that look up at the oil pump. There are no marks from falling thru chains so it must have lived low, appears to be too big to fall thru a port in the head, sort of leaves oil pump, but not all parts of something show-up in realoem, because they are part of a unit and not sold separately.
Sailor24 is offline  
post #3 of 11 Old 16th April 2019, 10:06 PM Thread Starter
KrautHammer
Member, Sport: Off DSC: On (>50 posts)
 
KrautHammer's Avatar
 
Join Date: Sep 2017
Location: Colorado
Posts: 86
Thanks: 20
Thanked 7 Times in 7 Posts
Garage
@Sailor24
OD 22.987[mm]
ID 15.52[mm]
Thickness 2[mm]

On close inspection it looks like it got bounced around a bit on its journey to the lower pan. Item 7?

Thanks
Attached Images
         

2002 Beast Schwarz-Metallic/Blk Sport

Last edited by KrautHammer; 16th April 2019 at 10:13 PM.
KrautHammer is offline  
 
post #4 of 11 Old 17th April 2019, 07:21 AM
Sailor24
M5 Expert (>4000)
 
Sailor24's Avatar
 
Join Date: Oct 2010
Location: Cobourg Ont
Age: 57
Posts: 9,758
Thanks: 986
Thanked 1,968 Times in 1,652 Posts
Could be 7, no specs for 7 so... It does not look like a bolt washer, first no 15mm bolts, but it has no marks like it was compressed by a bolt. If it was 7 I would suspect some plastic in the pan, it had to fall off?
It looks more like a banjo bolt washer but it is not the right material, looks like steel, is it magnetic?
It is definitely a strange part.
Sailor24 is offline  
post #5 of 11 Old 17th April 2019, 07:04 PM Thread Starter
KrautHammer
Member, Sport: Off DSC: On (>50 posts)
 
KrautHammer's Avatar
 
Join Date: Sep 2017
Location: Colorado
Posts: 86
Thanks: 20
Thanked 7 Times in 7 Posts
Garage
Quote:
Originally Posted by Sailor24 View Post
Could be 7, no specs for 7 so... It does not look like a bolt washer, first no 15mm bolts, but it has no marks like it was compressed by a bolt. If it was 7 I would suspect some plastic in the pan, it had to fall off?
It looks more like a banjo bolt washer but it is not the right material, looks like steel, is it magnetic?
It is definitely a strange part.
Its zinc plated steel and 2[mm] thick so its not a banjo crush washer.

Thanks for looking into it.

2002 Beast Schwarz-Metallic/Blk Sport
KrautHammer is offline  
post #6 of 11 Old 18th April 2019, 05:45 PM
herrubermensch
M5 Expert (>4000)
 
Join Date: Aug 2008
Location: New York
Age: 53
Posts: 8,711
Thanks: 4,474
Thanked 2,607 Times in 1,548 Posts
It's not 7. 7 is tiny.

That washer looks like the one that goes on the end of the dipstick, right above the upper oil pan. That would make sense, as that large a washer almost certainly would have wreaked serious havoc had it come from a position higher up in the engine.

--Peter
herrubermensch is offline  
post #7 of 11 Old 18th April 2019, 06:22 PM Thread Starter
KrautHammer
Member, Sport: Off DSC: On (>50 posts)
 
KrautHammer's Avatar
 
Join Date: Sep 2017
Location: Colorado
Posts: 86
Thanks: 20
Thanked 7 Times in 7 Posts
Garage
Quote:
Originally Posted by herrubermensch View Post
It's not 7. 7 is tiny.

That washer looks like the one that goes on the end of the dipstick, right above the upper oil pan. That would make sense, as that large a washer almost certainly would have wreaked serious havoc had it come from a position higher up in the engine.

--Peter
Item 15?

Yeah that makes more sense, not sure how it would get into the pan unless a previous technician dropped it and said "F'it" oil pickup wont suck it up so...going to lunch. I will check for the presence of the dipstick washer in it's proper position this evening.

I removed the oil pump sprocket cover to get a look at the lower chain tensioner and inspect for wear, it looks brand new, no grooves. I am concluding that the previous owner replaced the chain guides but will confirm this when I PM VANOS seals and rod bearings @100k. Car was exceptionally well maintained but, dealer purchase so no records. Right now the valve train is whisper quite and the engine runs perfectly, oil analysis is clean, no guide pieces in pan, if it ain't broke...

Thanks all
Attached Images
 

2002 Beast Schwarz-Metallic/Blk Sport
KrautHammer is offline  
post #8 of 11 Old 18th April 2019, 07:17 PM
herrubermensch
M5 Expert (>4000)
 
Join Date: Aug 2008
Location: New York
Age: 53
Posts: 8,711
Thanks: 4,474
Thanked 2,607 Times in 1,548 Posts
Quote:
Originally Posted by KrautHammer View Post
Item 15?

Yeah that makes more sense, not sure how it would get into the pan unless a previous technician dropped it and said "F'it" oil pickup wont suck it up so...going to lunch. I will check for the presence of the dipstick washer in it's proper position this evening.

I removed the oil pump sprocket cover to get a look at the lower chain tensioner and inspect for wear, it looks brand new, no grooves. I am concluding that the previous owner replaced the chain guides but will confirm this when I PM VANOS seals and rod bearings @100k. Car was exceptionally well maintained but, dealer purchase so no records. Right now the valve train is whisper quite and the engine runs perfectly, oil analysis is clean, no guide pieces in pan, if it ain't broke...

Thanks all
Yep, 15 looks like it to me.

--Peter
herrubermensch is offline  
post #9 of 11 Old 18th April 2019, 08:16 PM
Trizzuth
Member, P500, DSC On (>600)
 
Trizzuth's Avatar
 
Join Date: Sep 2017
Location: Masshole
Posts: 648
Thanks: 0
Thanked 35 Times in 34 Posts
Garage
I was originally thinking crush washer for oil pan bolt, but how the heck would that get in there when the washer goes on the outside?? Good diagnosis gents, great idea to check for presence of the dip stick washer too, and if you can get it out of there and it does exist at least you can compare the two side by side to see if the look the same.

New (old): 2003 E39 M5 TiAG
Old: 2001 E46 330i Steel-Grey Metallic (Totalled)
Trizzuth is offline  
post #10 of 11 Old 18th April 2019, 10:36 PM Thread Starter
KrautHammer
Member, Sport: Off DSC: On (>50 posts)
 
KrautHammer's Avatar
 
Join Date: Sep 2017
Location: Colorado
Posts: 86
Thanks: 20
Thanked 7 Times in 7 Posts
Garage
Much better than the oil pump sprocket thrust washer I assumed it was before looking at the diagrams and realizing no such thing exists...

Concerns have been alleviated provided the dipstick tube is sealed up adequately.

2002 Beast Schwarz-Metallic/Blk Sport
KrautHammer is offline  
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW M5 Forum and M6 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



Similar Threads
Thread Thread Starter Forum Replies Last Post
My new (to me) e60 M5: Tire Tracks on the soul gmak E60 M5 and E61 M5 Touring Discussion 183 14th May 2019 12:44 PM
E60 For Sale: FS: E60 M5 Oil Pan *CHEAP* Showstoppa Parts / Other For Sale or Wanted 1 14th November 2011 06:39 PM
Intersting read on oil consumption jt2ma71 E39 M5 and E52 Z8 Discussion 7 18th August 2011 08:01 AM
What oil? CSLjimmy E60 M5 and E61 M5 Touring Discussion 16 19th May 2009 10:01 PM

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome