Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-25-2003, 07:45 PM
Registered User
 
Join Date: Nov 2002
Location: Dallas
Posts: 802
What is this inside my valve cover? (Soot / Crud Rock?)

With the valve cover off I discovered and removed these two oil sand rock looking things from the intake side of the engine near the two rear valves, kinda sitting in the little indentations. There are about the size of an acorn.... EGR slag? What the hell. I only found the two....

engine has 183K

Attached Thumbnails
What is this inside my valve cover? (Soot / Crud Rock?)-soot-crud.jpg  
__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net
Reply With Quote
  #2  
Old 10-25-2003, 10:00 PM
jassz's Avatar
Registered User
 
Join Date: Feb 2003
Location: British Columbia, Canada
Posts: 402
Could it be a fossilized paper liner from an oil bottle??? That's what we found, though ours was not 'as' fossilized as that. :p
__________________
Natalie
Reply With Quote
  #3  
Old 10-26-2003, 12:10 AM
mikemover's Avatar
All-seeing, all-knowing.
 
Join Date: Aug 2001
Location: Atlanta, GA
Posts: 5,514
It's not plastic, is it? I don't mean to panic you, but if it is plastic, it could be pieces of timing chain guide/tensioner. !!!!!!

Mike
__________________
_____
1979 300 SD
350,000 miles
_____
1982 300D-gone---sold to a buddy
_____
1985 300TD
270,000 miles
_____
1994 E320
not my favorite, but the wife wanted it

www.myspace.com/mikemover
www.myspace.com/openskystudio
www.myspace.com/speedxband
www.myspace.com/openskyseparators
www.myspace.com/doubledrivemusic
Reply With Quote
  #4  
Old 10-26-2003, 08:17 AM
Registered User
 
Join Date: Nov 2002
Location: Dallas
Posts: 802
not plastic

if I pinch it it will crumble, that is why I was thinking egr slag / soot
__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net
Reply With Quote
  #5  
Old 10-26-2003, 09:22 AM
Registered User
 
Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
Did the PO EVER change the oil? Looks like hard sludge to me, the stuff you get from leaving cheapo dino oil in there forever.

Peter
__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
Reply With Quote
  #6  
Old 10-26-2003, 09:28 AM
Registered User
 
Join Date: Nov 2002
Location: Dallas
Posts: 802
yes - pretty regularly

what is weird is that there was no sludge anywhere else around the valve train - just that one area - this is what the rest of the valve train looks like.... this shot is pretty much where I found the pellets
Attached Thumbnails
What is this inside my valve cover? (Soot / Crud Rock?)-rear-valve.jpg  
__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net
Reply With Quote
  #7  
Old 10-26-2003, 09:31 AM
Registered User
 
Join Date: Nov 2002
Location: Dallas
Posts: 802
middle section

middle area
Attached Thumbnails
What is this inside my valve cover? (Soot / Crud Rock?)-middle-valve.jpg  
__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net
Reply With Quote
  #8  
Old 10-26-2003, 09:32 AM
Registered User
 
Join Date: Nov 2002
Location: Dallas
Posts: 802
front

near chain
Attached Thumbnails
What is this inside my valve cover? (Soot / Crud Rock?)-front-valve.jpg  
__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net
Reply With Quote
  #9  
Old 10-26-2003, 09:35 AM
Registered User
 
Join Date: Nov 2002
Location: Dallas
Posts: 802
whole engine shot

one side
Attached Thumbnails
What is this inside my valve cover? (Soot / Crud Rock?)-whole-engine-3.jpg  
__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net
Reply With Quote
  #10  
Old 10-26-2003, 09:35 AM
Registered User
 
Join Date: Nov 2002
Location: Dallas
Posts: 802
flash makes a bit more shiny...

than it really is
Attached Thumbnails
What is this inside my valve cover? (Soot / Crud Rock?)-whole-engine.jpg  
__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net
Reply With Quote
  #11  
Old 10-26-2003, 12:59 PM
Registered User
 
Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
It will collect where the oil flow is the slowest, meaning the rear of the head. Probably a bit hotter back there as well.

I see lots of black sludge on the casting -- can you wipe up some black grittys stuff of the depressions in the head where the casting is rough? If so, hard sludge.

Run several changes of good oil with filter on short oil changes, this should all come out, it's not good for the oil pump. I'd wait to switch to synthetic, if you are planning that, until you get the engine cleaned up a bit first!

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 06:15 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page