The turbo flunked the test with the breather (egr) disconnected and
the oil filler cap loose. [the cam throws quite a bit of oil with
the cap off at idle. a whole lot at higher rpm.] Still roughly the
same amount of oil coming up the throat of the turbo and being blown
out in wisps
I decided that $300 for a cartridge, and still having to fiddle with
wastegate adjustment, and possibly running out of time vs buying a
complete rebuilt from Q and not having to check or adjust anything is
worth the price differential in this case. Plus the turbo from Q has
a 2 yr warranty. He says he has never had one come back. that is
good too. Had I found the elusive $79 cartridge (gotta be chinee) I
might have tried one. but at $300, a known with time savings is good
in this case.
Once again, Mr. Q saves an agent of Herr Daimler's secret service group.
Parts should be in thurs pm. I have Thursday night and fri am to git er done.
87 300SDL
Oil feed line is on top, under the EGR assembly. You will probably
need to also remove the 10 mm screw that holds the line to the
bracket, and possibly the fitting on the block as well. Not a big
deal.
The exhaust is connected via some accordioned stainless parts with
strap clamps, easy to manage.
I'm guessing your oil consumption will go way down with a new one.
Peter
On Mar 12, 2012, at 6:08 PM, Dieselhead wrote:
Is there any way to check the drain without taking the drain or the
turbo off? My guess is not. I can't imagine the drain getting
plugged when M1 is in the engine.
I am inclined to order a turbo cartridge and just change it. If
the drain is plugged, I could clean and replace and keep the
cartridge on a shelf.
Where does the oil feed line come in?
What other parts are needed or should be replaced when replacing the turbo?
Is it necessary to take off the exhaust manifold to take out the turbo?
The ********* forum had a post where someone said taking off the
cranckase vent hose decreased pressure in the crankcase and stopped
oil leaking into the turbo. Sounds fishy to me on a 603.
Since it is now functional, I am inclined to leave it alone until I
have all parts in hand. If I tear into it, it might be weeks or
months until it gets finished because of the distance involved.
Parts needed:
2 or more drain tube o-rings
2 oil drain gaskets
EGR block kit. (have that at home but forgot to bring it.)
Whatever it takes to insure the oil feed is reliable...(? gaskets?
hose? new steel line?)
Turbo cartridge kit. (should include necessary parts to change)
It is wasting probably 3-4 quarts of oil a week currently. I need
to either order parts in the morning or postpone the mess until
another trip. No trip is on the horizon until November.
1987 300SDL is the subject.
Dieselhead wrote:
From no responses, I gather nobody else has had a turbo failure.
Is that right?
Is it correct that any oil in the compressor is conclusive
evidence of seal failure?
...or a plugged drain line. If you plug the drain and feed it oil
under pressure, the oil will get into the turbine/compressor
housings.
I'm pretty sure they don't have contact seals on the shaft, but if
the bearings wore out and had radial slop the labyrinth "seals"
would get chewed too and might let oil into the compressor section.
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_______________________________________
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
_______________________________________
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
