Years ago, I found the same type piece of plastic protruding from the same
hole in the center filter tube of one of my MB's; don't remember which one;
I pulled it out; 'never noticed anything else related to it.
Wilton
----- Original Message -----
From: "Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC,53310"
<meade.m.dil...@navy.mil>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Sunday, November 21, 2010 6:47 PM
Subject: Re: [MBZ] Oil Filter Cover metal Tube ?
I think your theory of a plastic remnant from the filter getting sucked up
to the hole on the outside of the tube and then partially sucked into the
tube is correct.
I'll bet that when you pulled on it, you got it all out. Whatever is left
will flow back to the pan, and then either settle out and leave with the
next oil change or get sucked up by the pump, and filtered by the oil
filter, and then taken out.
Worst case would be clogging of the oil jets which cool the pistons, which
would probably result in melted piston syndrome.
Maybe you can blow air through the small hole, or force oil through, and
then catch what comes out the bottom and sample for plastic?
-Max
________________________________
From: mercedes-boun...@okiebenz.com on behalf of l02tur...@comcast.net
Sent: Sun 11/21/2010 12:19 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] Oil Filter Cover metal Tube ?
Thanks Max and all others who helped ;-) It's on the 91 300D - the
engine
seems fine. I switched to Shell Rotella T organic 15W40 - I read they
have
more Lubricity additive than other oils.
So far I cannot detect a difference other than slightly higher oil
pressure
at fully warmed up idle. I believe Shell makes a Synthetic Rotella T
(Triple T perhaps?) I may try next time.
Back to the plastic film in the metal tube - there's a ball bearing in the
tip to prevent oil flowing upward in the tube - which may be why I got so
little air when I tried to blow air from that end. I need to read the
PDF
you provided -
I'll try soaking the tube in Solvent - perhaps lacquer thinner. I still
have the piece I pulled out - will see what dissolves that the best...
Thanks to all who helped - (I'll see if I can find that nitwit who does
oil
analysis) ;-)
LarryT
91 300D
-----Original Message-----
From: Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC,53310
Sent: Thursday, November 18, 2010 7:43 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] Oil Filter Cover metal Tube ?
Which car? Engine is probably toast.
Well, maybe not, after reading procedure 18-0999a on page 6 it says that
the center tube (aka return flow pipe) provides finely filtered oil back
into the oil pan. So if this hole was plugged, flow to the engine
bearings is NOT affected, but less oil filtering is going on.
I know a fellow who sells these engine oil analysis kits, the lab
results might help determine if any damage was done? ;)
-Max
-----Original Message-----
From: mercedes-boun...@okiebenz.com
[mailto:mercedes-boun...@okiebenz.com] On Behalf Of
l02tur...@comcast.net
Sent: Thursday, November 18, 2010 7:14 AM
To: Mercedes Discussion List
Subject: [MBZ] Oil Filter Cover metal Tube ?
I posted this on the 15th but rec'd no replies - I'll try again:
The long metal tube attached to the Filter Canister Cover has a hole in
the bottom and a hole near the top. The upper hole had what appeared to
be a piece of plastic-like paper partly in the hole (like the cellopane
on a pack of cigarettes but much stronger).
I pulled it and believe all came out although I had to
tug pretty hard. I tried to blow through the tube opening with my
compressor and I got some oil seepage from the hole. I'm assuming the
piece of "stuff" (I think I'll retrieve it from the trash) was stuck to
the filter perhaps? and came loose then was sucked into the upper hole?
Don't know how long it's been like this ---
What is the tube for? What do the holes do?
Can the tube be removed from the cover?
Thanks -
LarryT
91 300D
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