Hi Max --
Thanks *very* much for your experienced suggestions!
As far as your comment <<Obviously there are other causes for rough idle
that also need to be investigated (fuel filters, air leaks, bad injectors,
carbon in pre-chambers, valve adjustment on older engines, EDS problems on
newer engines, compression, etc.)>>
That's why I took it to the dealer - while my fuel filters are new, cannot
find any air leaks, have treated it for carbon in the pre-chambers (along
with 2 years of 100 mi RT at 67-70mph) I can't be sure of the other
possibilities. Obviously, I'm hoping the MB Technician knew what he was
doing.
I will replace the springs and make sure all is clean - you're right about
the springs - seems like false economy not to replace them while you're in
there.
But I have a question about the possibility of warping the IP body when
torqing the DVs - you said it's necessary to "Fix it". How would I do that?
Maybe I'd be better off letting the dealer do it?? I cringe at the
thought of damaging the IP!!
I'm off to get springs and the removal tool from Rusty -
Thx agn - It's all *very* helpful!! Even if this doesn't fix the rocking
completely, it appears it's something that needs to be done.
LarryT
91 300D
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--------------------------------------------------
From: "Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC,53310"
<meade.m.dil...@navy.mil>
Sent: Wednesday, October 14, 2009 7:43 AM
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Subject: Re: [MBZ] W124 Motor Mounts & Related Problems
Harry,
Rough idle can be caused by internal leak at copper washer OR by worn
elements inside the delivery valve. I suspect that you really have to
know what you are looking for to identify worn elements inside the DV;
new DV are pricey, but for the novice a strategy may be to purchase one
and use it for comparison purposes? Obviously there are other causes
for rough idle that also need to be investigated (fuel filters, air
leaks, bad injectors, carbon in pre-chambers, valve adjustment on older
engines, EDS problems on newer engines, compression, etc.)
Max
-----Original Message-----
From: mercedes-boun...@okiebenz.com
[mailto:mercedes-boun...@okiebenz.com] On Behalf Of harry watkins
Sent: Wednesday, October 14, 2009 1:29 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] W124 Motor Mounts & Related Problems
Larry wrote:
Additionally, they tell me the Injector Seals are leaking - not
internal seals but the O-Ring and copper washer that fits inside the
line where it exits the IP - so the IP doesn't need to be replaced -
only the metal injector lines need to come off and a fitting inside
the IP removed from each injector exit port. I plan to do it myself
and from what little I've seen it doesn't look too bad. Don't know
how I would have found these seals were bad!
They tell me the seals leak internally & cause the problem I
described - rough idle at idle after fully warmed up.
Boy, this messes with my mind. How can one determine that a delivery
valve has an internal leak? I could understand if they had looked at
the parts and found some wear but that would have required a tear down.
IMHO, if you go in there for any reason, you should replace the o-rings,
seals and springs, perform the three step torque procedure and hope for
the best.
Anyone know how they do that?
Thanks
Harry
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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:
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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
