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#1
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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
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~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 |
#2
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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
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Natalie |
#3
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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
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_____ 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 |
#4
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not plastic
if I pinch it it will crumble, that is why I was thinking egr slag / soot
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~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 |
#5
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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
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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! |
#6
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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
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~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 |
#7
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middle section
middle area
__________________
~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 |
#8
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front
near chain
__________________
~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 |
#9
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whole engine shot
one side
__________________
~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 |
#10
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flash makes a bit more shiny...
than it really is
__________________
~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 |
#11
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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
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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! |
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