The trapped GP in the 95 E300D was removed by running the engine under
load, IIRC. Seems that it had happened before while the car resided
in CA, and the shop may have cross threaded the new GP on install. It
carboned itself into the #6 spot again, so when SWMBA took it to be
fixed, they got the other five out, but had a devil of a time with
#6. They reamed and cleaned the other five, installed and then took
the car for a drive up a hill or two. They had built a wooden
surround with 2x on the end. Blasted it out and towed the car back to
the shop to get the threads put back in shape. Had a vac in the
injector hole while reaming and rethreading.
clay
On Jan 21, 2010, at 3:06 PM, R A Bennell wrote:
I wonder if some vibration would help? Would the carbon be hard
enough to crack if one could vibrate the plug?
Impact wrench or perhaps some homemade or modified tool in an air
hammer. Vibrate it a bit but not so hard as to
damage something else.
Alternatively - heat. Is there enough room to warm it up good with a
torch without hurting anything else?
Randy
-----Original Message-----
From: mercedes-boun...@okiebenz.com
[mailto:mercedes-boun...@okiebenz.com]on Behalf Of John Reames
Sent: Thursday, January 21, 2010 4:19 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] OT '95 E300 project - OM606 fun (was oscope)
I am not convinced that proper driving habits have much effect, nor am
I convinced that penetrating oil applied on the threaded end of the gp
will help
I've had one snap off. I drive ... Well let's say I would get in far
too much trouble with any sort of V8 MB (and leave it at that)...
I'd been applying penetrating oil for days, along with turning it
through the 1/4 turn that it could move... It started to move, turned
maybe 2-3 turns, then
it snapped. When using a puller (with a ball-bearing thrust washer),
quite a bit of torque was required to extract the remains. The
remains vociferously protested extraction, fighting the whole way and
screaming in a manner that nails on a blackboard can only dream
about...
--
John W Reames
jwrea...@comcast.net
Home: +14106646986
Mobile: +14437915905
On Jan 21, 2010, at 7:08, "Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC,
53310" <meade.m.dil...@navy.mil> wrote:
Yes, there is that interesting aspect when considering new glow
plugs in
an OM606. A fellow I know in Virginia has a very interesting theory
on
this problem of glow plugs breaking off too easily. He thinks that
the
design of the glow plug promotes carbon build-up on the plug portion
just inside the threads, which forms a ring. This ring of carbon
acts
like a compression seal in reverse; as the plug is turned
anti-clockwise, this ring of carbon compresses on the plug and
prevents
it from coming out of the head. My friends solution is (1) liberal
use
of penetrating oil and (2) working the plug slowly in and out so that
the carbon ring can be worn down before it breaks off the plug.
I believe that proper driving habits can reverse carbon build-up,
so I
may leave the glow plugs alone until I've driven the car a bit to
clean
up any carbon that may have built up.
-Max
-----Original Message-----
From: mercedes-boun...@okiebenz.com
[mailto:mercedes-boun...@okiebenz.com] On Behalf Of John Reames
Sent: Wednesday, January 20, 2010 4:15 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] OT oscope
Don't do anything that would make pulling the head overly difficult
before changing glow plugs on an om606. None of your business how I
know!!!
--
John W Reames
jwrea...@comcast.net
Home: +14106646986
Mobile: +14437915905
On Jan 20, 2010, at 10:52, "Dillon, Meade M CIV SPAWARSYSCEN-
ATLANTIC,
53310" <meade.m.dil...@navy.mil> wrote:
Tinkered with the project a little over the three-day weekend.
Ordered
more parts (fuel line O-rings, various fossilized plastic bits).
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_______________________________________
http://www.okiebenz.com
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To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://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://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
