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 06-23-2007, 11:10 PM
Registered User
 
Join Date: Jun 2007
Location: South Mississippi
Posts: 108
Slipping reverse and Vacum

I have an oportunity to pick up a 85 sd cheap. The owner says sometimes you have to shut off the car manually. Also reverse slips. Forward gears are fine. Now I thought to myself perhap vacum problem could be the results of both issues. But shifting fine is forward sort of throws a wrench in this theory? What you guys think? Is the reverse adjustable?

Reply With Quote
  #2  
Old 06-23-2007, 11:15 PM
Abandon the Roads!
 
Join Date: Feb 2007
Location: Texas
Posts: 283
The shutoff is a vacuum leakage somewhere, the fact that it's intermittent points to some part of the ACC pod system.

As for the bad reverse, check the tranny fluid level, but another forum member will have to confirm the problem there. I don't think vacuum can cause reverse to slip, I think you have a tranny on the way out.
__________________
1984 300DT turbo 138k mi

Still hauling me to school and back.

Handy Site:
http://www.dieselgiant.com/
Reply With Quote
  #3  
Old 06-23-2007, 11:23 PM
Registered User
 
Join Date: Jun 2007
Location: South Mississippi
Posts: 108
I think the shutting off is an easy fix. But the tranny could be a money pit. Thats what worries me the most. 246k miles.
Reply With Quote
  #4  
Old 06-23-2007, 11:43 PM
Abandon the Roads!
 
Join Date: Feb 2007
Location: Texas
Posts: 283
Well, another member can confirm whether it's out of adjustment or out of life, but if it is going out, you could just pull another automatic from a wrecked car in a junk yard, and it will probably be good for a while.

Dunno of SD's have a manual tranny that you could put in? If you managed to do that, you would probably have no tranny problems for the life of the car.
__________________
1984 300DT turbo 138k mi

Still hauling me to school and back.

Handy Site:
http://www.dieselgiant.com/
Reply With Quote
  #5  
Old 06-24-2007, 12:19 AM
jbaj007's Avatar
Registered User
 
Join Date: Jun 2001
Location: Santa Monica, CA
Posts: 2,053
Reverse slip can be the sign of trans that has lived a long and happy life, but is nearing the retirement home. 722.303 is not adjustable on reverse firmness.

ForcedInduction has put a 4-speed manual on a 617.951. Hopefully he'll give you the real word on it.
__________________
The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)
Reply With Quote
  #6  
Old 06-24-2007, 12:25 AM
Abandon the Roads!
 
Join Date: Feb 2007
Location: Texas
Posts: 283
IIRC the 617.952 was on 123s and the 617.951 was on 126s, right?
(I should bookmark the wikipedia page where they have a nice big chart of all this)

I only saw the manual tranny transplant on 123s, never on a 126. I'm guessing I missed something?

__________________
1984 300DT turbo 138k mi

Still hauling me to school and back.

Handy Site:
http://www.dieselgiant.com/
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




All times are GMT -4. The time now is 03:18 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, 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