Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-07-2005, 01:33 AM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,354
Thumbs up Part# rack damper pin for 1985 300SD

----- Original Message -----
Subject: rack damper pin not found, help.. From: whunter

Help Phil.
I tried to look up the rack damper pin for 1985 300SD.
What is the part number, and is it on FastLane?
I have tried to find this part for several other MB, with no results on
FastLane.
whunter


Hello whunter
You'll need to order it under the Special Order parts section MB# 0000742674

Thank you
Phil
1.888.333.4642
http://www.peachparts.com/


Item Number: 0000742674
Main Category: MERCEDES BENZ
Sub Category:
Description: diesel injection pump "Rack Damper" adjustment bolt...Rear of Injection Pump
Weight: 1.000



This type of help is why people like dealing with Phil for parts.
Have a great day.
__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Prototype Vehicle build.
Prototype Fleet Durability
Prototype vehicle instrumentation.
Technical Quality Auditor.
Automotive Technical Writer

1973 300D
1973 309D - stolen
1978 280SE
1980 240D
1983 300D
1984 190D

Last edited by whunter; 10-07-2012 at 10:14 AM.
Reply With Quote
  #2  
Old 04-07-2005, 09:00 AM
dannym's Avatar
I'm not here
 
Join Date: Oct 2004
Location: Deltona, Florida
Posts: 2,360
Hey,
As long as were discussing the rack dampner pin I have a question.
I thought I read in a post somewhere that there is an upgrade bolt. Is this true or am I just imagining things?

Danny
__________________
1984 300SD Turbo Diesel 150,000 miles

OBK member #23

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination
Reply With Quote
  #3  
Old 04-07-2005, 09:37 AM
rg2098's Avatar
Detailing Moderator
 
Join Date: Jun 2004
Location: Rochester Hills, MI
Posts: 2,415
The new bolt is gold colored, the old one is sliver. The change was done years ago and you only get the updated version when you order it.
__________________
Adam Lumsden
(83) 300D
Vice-President of the MBCA International Stars Section
Reply With Quote
  #4  
Old 04-07-2005, 09:52 AM
dannym's Avatar
I'm not here
 
Join Date: Oct 2004
Location: Deltona, Florida
Posts: 2,360
Ok so I'm not imagining things. whewww...

So what is the benefit of having the new one as compared to the original?

Danny
__________________
1984 300SD Turbo Diesel 150,000 miles

OBK member #23

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination
Reply With Quote
  #5  
Old 04-07-2005, 11:06 AM
Registered User
 
Join Date: Jun 2004
Location: West of Ft. Worth. TX
Posts: 4,141
It's not worn.

From what I have read, the older bolt becomes worn and causes the fuel control rack, inside the IP, to not dampen correctly.

If worn sufficiently, the result is feeling like you are in a butter churn at idle. (If you are not familiar with butter churns, think washing machine. )
__________________
Sam

84 300SD 350K+ miles ( Blue Belle )
Reply With Quote
  #6  
Old 04-07-2005, 01:41 PM
lietuviai's Avatar
Registered User
 
Join Date: Mar 2003
Location: SW WA
Posts: 5,741
Mine idles quite nicely with 237K on the clock. I saw an '85 SD with half the miles last year that the engine was rocking back and forth at idle. Is that what you're talking about SD Blue?
__________________
DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
Reply With Quote
  #7  
Old 04-07-2005, 06:58 PM
Brandon314159
Guest
 
Posts: n/a
Mine rocks a bit when it gets really hot however is this worth the 50 bucks? Just seems kinda steep for the little rod with a spring/point on the end.
Reply With Quote
  #8  
Old 04-07-2005, 06:59 PM
Registered User
 
Join Date: Jun 2004
Location: West of Ft. Worth. TX
Posts: 4,141
Exactly, If you take a jar of fresh whole milk, and rock it back and forth, it won't be long before the butterfat clumps together.
__________________
Sam

84 300SD 350K+ miles ( Blue Belle )
Reply With Quote
  #9  
Old 04-08-2005, 11:30 AM
Registered User
 
Join Date: Jun 2004
Location: West of Ft. Worth. TX
Posts: 4,141
Quote:
Originally Posted by Brandon314159
Mine rocks a bit when it gets really hot however is this worth the 50 bucks? Just seems kinda steep for the little rod with a spring/point on the end.
That is the symptom, however, it would be a good idea to try an adjustment first. To adjust it, loosen the locknut and screw it in till you feel it just contact the rack. Then tighten the locknut. If you screw it in too far, it may become hard to start.

However, if you still have the symptoms, it may need replacement. After a while, the shake will get bad enough you will replace the damper bolt. (I guess that is why they charge so much for it.)
__________________
Sam

84 300SD 350K+ miles ( Blue Belle )

Last edited by whunter; 12-22-2010 at 11:20 AM. Reason: spelling
Reply With Quote
  #10  
Old 04-08-2005, 12:52 PM
dieseldiehard's Avatar
Dieseldiehard
 
Join Date: Oct 2002
Location: Bay Area No Calif.
Posts: 4,195
you can test the stiffness of the spring, press the tip of the damper bolt against a hard surface. When the spring gets weak the damper bolt loses the proper "push" against the rack.
At least 2 other factors may be involved with a loping idle; a tired engine shock can aggravate this condition and the condition (balance) of the injectors affect the tendency for the engine to lope.
__________________
'00 E320 (wifes car), '95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!
Reply With Quote
  #11  
Old 04-08-2005, 02:44 PM
lietuviai's Avatar
Registered User
 
Join Date: Mar 2003
Location: SW WA
Posts: 5,741
I wonder if the bolt is the same as the idle adjustment bolt, meaning if you can swap between the two. The idle adjustment bolt is also spring loaded.
__________________
DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
Reply With Quote
  #12  
Old 04-08-2005, 03:01 PM
Brandon314159
Guest
 
Posts: n/a
Quote:
Originally Posted by SD Blue
That is the symptom, however, it would be a good idea to try an adjustment first. To adjust it, loosen the locknut and screw it in till you feel it just contact the rack. Then tighten the locknut. If you screw it in too far, it may become hard to start.

However, if you still have the symptoms, it may need replacement. After a while, the shake will get bad enough you will replace the dampener bolt. (I guess that is why they charge so much for it.)
Sorry I forgot to mention that someone has already adjusted mine in all the way already. I even have the light surguing of idle speed at idle when hot on occasion.
Reply With Quote
  #13  
Old 04-08-2005, 04:15 PM
sdelasal
Guest
 
Posts: n/a
I always thought that this damper bolt was the same item as the idle adjust bolt - anyone got any pictures showing where the damper bolt is in relation to the idle bolt?
STeve
Reply With Quote
  #14  
Old 08-14-2005, 10:02 PM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,354
Bump

RE: Is this the right part on fastlane? (rack damper pin)
Is this the right part on fastlane? (rack damper pin)

Last edited by whunter; 03-16-2007 at 07:11 PM.
Reply With Quote
  #15  
Old 03-16-2007, 03:50 PM
toomany MBZ's Avatar
Registered User
 
Join Date: Nov 2006
Location: central Va
Posts: 7,820
Quote:
Originally Posted by sdelasal View Post
I always thought that this damper bolt was the same item as the idle adjust bolt - anyone got any pictures showing where the damper bolt is in relation to the idle bolt?
STeve
Idle adjust bolt is a hex with a slot located on IP near head, lock nut on bottom, loosen, turn hex with flat screw driver. RD bolt is located on rear of IP, just in front of oil filter housing. 14mm lock bolt closest to IP, 12mm adjusting bolt. I did this with engine at operating temp while idling. Back out 12mm till smooth idle, tighten 14mm. I love stubby gearwrenches!
__________________
83 SD

84 CD
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rack Pin Question lrg Diesel Discussion 6 12-16-2002 12:18 AM
W126 headlamp plug pin part number help Mattman Tech Help 2 09-30-2002 03:31 PM
Rack Pin Part# JOJO126 Diesel Discussion 1 03-06-2002 03:26 PM
300D / 300SD injector return hose part number ledington Site Feedback 0 01-08-2002 09:01 AM
Why is part taking so long?91300TE4M Hazen Tech Help 3 03-09-2001 08:50 PM



All times are GMT -4. The time now is 09:31 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page