George Larribeau wrote:
A possibility is the rack damper bolt on the back of the IP, but, if it
was mis-adjusted or worn out, I think you would see the engine visibly
rock (its been like that when I've adjusted mine).
visibly rock??? How much ??
A lot. Like ~2 side to side. When I was
George Larribeau wrote:
Runs rough at idle extra noticeable when cold. Seems to be happier above
1100 RPM or so This RPM is a bit higher when cold. It is better after I get
it on the 'Freeway' it gets up to operating temperature. The idle speed
could be a tad lower that I remember but it
I'd make sure the motor mounts and tranny mounts are in good shape (as
others have already suggested). I would also suggest loosening a nut on
each injection line one at a time to see the change in idle on each
cylinder. If one cylinder decreases the idle less than the others that
PROTECTED]
On Behalf Of George Larribeau
Sent: Tuesday, September 11, 2007 5:20 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] 1985 300SD Nasty Engine Vibration
I ordered the injectors from Rusty and am going to give it a try, BTW they
come with new heat shields. Can the injectors be removed
-
From: Marshall Booth [EMAIL PROTECTED]
Sent: Sep 11, 2007 4:26 PM
To: Mercedes Discussion List mercedes@okiebenz.com
Subject: Re: [MBZ] 1985 300SD Nasty Engine Vibration
Rich Thomas wrote:
So is that true, these are the same product? Diesel Purge I never see,
Techron is in the auto parts store
billr wrote:
I've not been able to follow all the threads on this due to limited time and
computer problems - Is Techron concentrate safe and effective for a diesel?
Much easier than doing the stuff requited for Diesel Purge.
Thanks - BillR
Jacksonville FL
1981 300SD 295k miles
Chevron
This is quickly proven when the engine is
reconnected to the diesel supply and much of the noise slowly returns as the
Cetane index drops.
This is what I experienced on my second '78 300D. It sounded very quiet and
smooth while running the DP, but clattered loudly once the diesel supply
George,
My old 300D had similar symptoms. Ran fine at speed, but idled rough.
In my case, it was a set of injector nozzles nearing the end of their
service life. Had a couple with poor spray patterns, and all of them
were all over the map on pop pressure.
Gary Thompson
1995 E320
On 9/10/07,
, 2007 7:27 AM
Subject: Re: [MBZ] 1985 300SD Nasty Engine Vibration
George,
My old 300D had similar symptoms. Ran fine at speed, but idled rough.
In my case, it was a set of injector nozzles nearing the end of their
service life. Had a couple with poor spray patterns, and all of them
were all
George Larribeau wrote:
Suggestions on where I could send / take them
Check the listings under diesel injection service
in your local yellow pages.
Mitch.
___
http://www.okiebenz.com
For new parts see official list sponsor: http://www.buymbparts.com/
For
, September 11, 2007 11:31 AM
Subject: Re: [MBZ] 1985 300SD Nasty Engine Vibration
George Larribeau wrote:
Suggestions on where I could send / take them
Check the listings under diesel injection service
in your local yellow pages.
Mitch.
___
http
George Larribeau wrote:
Rusty lists injectors and injector nozzles separately. Is the injector
complete with nozzle? Can these just be installed or do they need to be set
up ??
Injectors are rebuilt, complete assembly.
A home mechanic could replace a nozzle, but the engine would idle very
What are the heat sheilds ??
- Original Message -
From: John Robbins [EMAIL PROTECTED]
To: Mercedes Discussion List mercedes@okiebenz.com
Sent: Tuesday, September 11, 2007 1:23 PM
Subject: Re: [MBZ] 1985 300SD Nasty Engine Vibration
George Larribeau wrote:
Rusty lists injectors
George Larribeau wrote:
What are the heat sheilds ??
They are basically a crush washer that goes inbetween the injector and
the prechamber. They provide a good seal so that exhaust gases don't
escape past the injector, and they also dissipate some of the heat of
combustion into the head
George Larribeau wrote:
My 300SD vibrates cold real bad, the vibration diminished when warmed up. It
gets real noticeable below 1200 Rpm or so. At first I thought is was an
abrupt new behavior but I now believe it has been doing it for a while. At
first it was not real noticeable and some time
John Robbins wrote:
George Larribeau wrote:
Rusty lists injectors and injector nozzles separately. Is the injector
complete with nozzle? Can these just be installed or do they need to be set
up ??
The injectors listed on Rusty's site come complete with nozzle, etc.
All you need to do
, September 11, 2007 2:39 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] 1985 300SD Nasty Engine Vibration
John Robbins wrote:
George Larribeau wrote:
Rusty lists injectors and injector nozzles separately. Is the injector
complete with nozzle? Can these just be installed or do they need
So is that true, these are the same product? Diesel Purge I never see,
Techron is in the auto parts store.
--R
Marshall Booth wrote:
I'd start with a dose of a superior injector
cleaner (Diesel Purge delivered full strength or Chevron Techron
concentrate - the same stuff for gasoline
Rich Thomas wrote:
So is that true, these are the same product? Diesel Purge I never see,
Techron is in the auto parts store.
--R
Marshall Booth wrote:
I'd start with a dose of a superior injector
cleaner (Diesel Purge delivered full strength or Chevron Techron
concentrate - the
] 1985 300SD Nasty Engine Vibration
John Robbins wrote:
George Larribeau wrote:
Rusty lists injectors and injector nozzles separately. Is the injector
complete with nozzle? Can these just be installed or do they need to be set
up ??
The injectors listed on Rusty's site come
Subject: Re: [MBZ] 1985 300SD Nasty Engine Vibration
There are a number of homemade ones out there, made from grease guns and
bottle jacks , but all of the designs I've seen use iron plumbing parts,
and if you've ever checked the pressure rating on those things, it's
only a few hundred psi at best
, 2007 2:33 PM
Subject: Re: [MBZ] 1985 300SD Nasty Engine Vibration
George Larribeau wrote:
My 300SD vibrates cold real bad, the vibration diminished when warmed up.
It
gets real noticeable below 1200 Rpm or so. At first I thought is was an
abrupt new behavior but I now believe it has been doing
R A Bennell wrote:
Doesn't Jim Cathey make shims from the sides of abandoned dishwashers, or
some such??
In case anybody was wondering, homemade injector spring shims do not seem to
last long enough to be worth messing with. You can obtain proper shims from
a Bosch shop or buymbparts.com
R A Bennell wrote:
Seriously, though, it is at least interesting to know how it is done.
I have not looked around here to see who might do this sort of thing.
What sort of pressure is required to test these things? One would
think that hydraulic hoses and fittings might be sufficiently strong.
George Larribeau wrote:
Diesel Purge delivered full strength
What is the best technique for this?
Fill secondary filter and start ??
Fill a jar or similar container with the diesel purge (something you can
see into), disconnect the supply and return fuel lines from the tank,
and put
R A Bennell wrote:
Doesn't Jim Cathey make shims from the sides of abandoned dishwashers, or
some such??
Seriously, though, it is at least interesting to know how it is done. I have
not looked around here to see who
might do this sort of thing. What sort of pressure is required to test
@okiebenz.com
Sent: Tuesday, September 11, 2007 3:03 PM
Subject: Re: [MBZ] 1985 300SD Nasty Engine Vibration
How difficult is it to do this yourself? I seem to recall an article about
a home made tester with a gauge made out
of a grease gun etc. How is the injector calibrated?
Randy
-Original
Providing that you either don't get some really nasty fuel through them,
or have some unexpected thing like excessive oil burning rear it's head
, or you don't just get an urge to fiddle with them, you shouldn't need
to fool with your fresh injectors for a good 100K + miles
--Robert
George Larribeau wrote:
Diesel Purge delivered full strength
What is the best technique for this?
Fill secondary filter and start ??
The delivery scheme is detailed on the side of the Diesel Purge bottle
and in the Performance Products catalog. I've attached a copy of the
diagram to the
On Tue, 11 Sep 2007 16:19:42 -0500 George Larribeau
[EMAIL PROTECTED] wrote:
Can the injectors be removed without unloosening the pluming at the pump
end? Will it flex just enough to get the injectors out and (hopefully
in)?
No, and no. The lines are pretty stiff. It's not that hard to remove
My 300SD vibrates cold real bad, the vibration diminished when warmed up. It
gets real noticeable below 1200 Rpm or so. At first I thought is was an
abrupt new behavior but I now believe it has been doing it for a while. At
first it was not real noticeable and some time last week it got a whole
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