Well, I begged and the shop decided they would do the DV on Gump. He
was not pleased when I showed up, but it took all of 30 minutes to do
the job, he was happy as a clam when I came to pick her up.
clay
On Jan 9, 2010, at 4:43 AM, LarryT wrote:
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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--------------------------------------------------
From: "Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC,53310" <meade.m.dil...@navy.mil
>
Sent: Friday, January 08, 2010 11:15 AM
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Subject: Re: [MBZ] Fuel delivery valve job
According to my recollection of Marshall Booth's descriptions, it is
possible to follow correct torque procedure (30Nm - release - 30Nm -
release - 35Nm - lockdown) and still warp the IP body, which
requires a
re-do.
My idea of doing one at a time (when doing them all) would help you
determine which one had warped the IP body. I admit I've only
rebuilt
all of them at once on two different motors, and on neither motor
did I
start the engine between each DV rebuilt. Both were OM60x engines
and
on neither did I have any problems, but a thought experiment lead
me to
believe that an engine start to listen to the IP between each DV
might
be wise. Could be either too difficult or worthless if you have the
intake manifold off when you re-start and can't hear anything
different
because of the extra noise from the intake openings in the head.
Maybe you should only do the leaking DV's in order to reduce the
possibility of a problem?
-Max
[SNIP]
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