Thanks Harry --
I'm sure it'll make sense when I actually do it following your excellent
directions -
LarryT
OilAnalysis Time?
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--------------------------------------------------
From: "harry watkins" <harry...@bellsouth.net>
Sent: Saturday, January 09, 2010 1:41 PM
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Subject: Re: [MBZ] Fuel delivery valve job
The lockdown straps are splined. You stack two on a DV and leave the ends
facing out, their thickness is more than a 1/4". I then used either a
17mm or 11/16" crowsfoot with a long extension going straight up and past
the intake. You have to connect the torque wrench 90 degrees from the
strap ends, otherwise you would extend the length of the wrench and the
torque would be off. I had the DVs snug so the straps did not have much
travel before torque was achieved.
Harry
.
----- Original Message -----
From: "LarryT" <l02tur...@comcast.net>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Saturday, January 09, 2010 11:10 AM
Subject: Re: [MBZ] Fuel delivery valve job
Thx for that Harry - You wrote <<I used the hold
down straps as a wrench to do the torque.>>
You didn't use a torque wrench? Don't understand ---
LarryT
OilAnalysis Time?
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--------------------------------------------------
From: "harry watkins" <harry...@bellsouth.net>
Sent: Saturday, January 09, 2010 10:44 AM
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Subject: Re: [MBZ] Fuel delivery valve job
I use brake parts cleaner and air to blow it dry. To find the leakers,
sprinkle some baby powder around the DVs and watch.
I've done two 603s without problems and on the first one, I used the
hold down straps as a wrench to do the torque. I did however follow the
procedures with care.
Harry
----- Original Message -----
From: "LarryT" <l02tur...@comcast.net>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Saturday, January 09, 2010 8:26 AM
Subject: Re: [MBZ] Fuel delivery valve job
Thx for the instructions! Yes, I'd like the full content. What do you
use to wash things off with as you work? Kero / Diesel?
Thanks -
LarryT
91 300D 602-962
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--------------------------------------------------
From: "Dieselhead" <126die...@gmail.com>
Sent: Saturday, January 09, 2010 8:20 AM
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Subject: Re: [MBZ] Fuel delivery valve job
Doing one at a time is excess work. I have done 4 OM603s with good
results by following the instructions. As with all injector work,
cleanliness is the primary concern. After the deck is cleaned, and
you start to remove the DVs, I back them out until the oring starts to
show, then wash the DV and deck again. When the oring is leaking, it
is crumbling. Lots of little black stuff is released and needs to be
washed off. As you back out the DV, keep washing and blowing off the
DV and deck.
I take off and replace one DV at a time, up to the final torque. After
the last DV is done, then replace the lines, bleed the air and tighten
down the line at the injector. I also replace the DV springs while I
am in there. It is just a precaution, and quite inexpensive.
Don't replace only the leaking orings. You will be right back doing
the job again. Taking off the intake manifold does make the job
easier, but is not necessary. If I ever have need to remove the
intake manifold, I change the orings, unless I know the orings are
under 2 years old.
I also order 8 orings, 8 copper seals and 6 springs to do the job.
Sometimes it is necessary to pull one back out, and that usually
results in a cut oring, and the copper seal should also be replaced.
Having spares cuts a week off the duration of the job. (Waiting for
more orings to be delivered)
IF you don't have it, I will email the instructions I have accumulated
from this list over time. You need to be clean and be careful, but it
is not that hard of a job, and I think the dangers are overstated,
unless you try to use air tools to install the delivery valves.
Max wrote <<Maybe you should only do the leaking DV's in order to
reduce the
possibility of a problem?>>
That's a good idea. I'll have to clean things really good to
determine which is the primary culprit/s. Usually the engine is
pretty clean but it's been so cold that I haven't been able to rinse
it off. At the moment there's a thin film of diesel around all 5 DV
hold down clamps.
BTW, what kind of noise should I be listening for? I wonder how the
factory/dealer does them to make sure they "do it right the first
time" (also know as DIRTFT) ? I'm sure the factory uses a special
tool to screw all 5 or 6 in at once, but if I'm very careful with my
torque wrench I should be able to duplicate the torque on each DV
pretty precisely, I think.
I suspect the 3 stage procedure for torqueing is to insure accuracy so
there must have been problems in the past. Is the metal on the IP
where the DV's are installed perhaps soft which could lead to
inaccurate settings? Just curious ---
Thx for the suggestion - -
LarryT
91 300D
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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://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
_______________________________________
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
_______________________________________
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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
