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 ShopForum > Technical Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-04-2008, 11:36 PM
Registered User
 
Join Date: Dec 2008
Location: columbia, sc
Posts: 99
85 300d auto tranny stuff and turbo stuff

hey to all. i jus got me a 85 300d(with 312k miles). it some tranny issues. it shifts weird. some times it shifts ok and others it doesnt. is there any way to bypass all the extra vacuum stuff? and on to another sissue, it seamd like the turbo kind works. you can hear it spool up at low speed, but when your on the hwy it wont accererate well past 60mph. my 83 300d(435k miles) has a lot more power. any ideas out there??
doug


83 300d(445k miles)svo
85 300d(312k miles)
87 isuzu pup (diesel)svo
96 nissan 240sx (turbo)

Last edited by dfralix1; 12-06-2008 at 08:30 PM.
Reply With Quote
  #2  
Old 12-05-2008, 01:41 PM
81300sd's Avatar
Registered User
 
Join Date: May 2008
Location: Spokane WA
Posts: 312
Start with cleaning the banjo bolt then move down the line until you are at the alda.

As far as eliminating vacuum stuff, about the only part you can all the egr portion of the vacuum, there is a good writeup on it. I believe by Brian Carlton.

Describe the shifting issues and we will be more able to help.
__________________
81 300SD daily driver/project
86 420SEL (sold)
85 380SE(in the graveyard)
Reply With Quote
  #3  
Old 12-05-2008, 03:07 PM
rrgrassi's Avatar
mmmmmm Diesel...
 
Join Date: Jun 2006
Location: Royse City Tx
Posts: 4,868
Welcome!

Also, add the cars to your signature so we can help you better.

Youy problem w/the highway speed does sould like a clogged banjo bolt, a non funtioning turbo switchover valve, a broken delrin line that connects the banjo bolt to the switch over valve then to the ALDA, broken rubber pieces on the switchover valve, or even a stuck open waste gate.
__________________
RRGrassi


70's SPM #5608 Fairmont A-4 MOW car

06 VW Jetta TDI 210K miles

82 300D 322K My Daily Driver-Warndreicke in the trunk. Trip ODO still working!

90 Dodge D250 5.9 Cummins/5 speed. 350K
Reply With Quote
  #4  
Old 12-06-2008, 08:39 PM
Registered User
 
Join Date: Dec 2008
Location: columbia, sc
Posts: 99
well the shifting issue, it seams to shift kinda late and it kinda seams to slip into 3ed then catch hard(think its 3ed) the rpms seam to be around the same as my 83. bout 3500 at 80mph, when it gets that fast. hard to get it to go that fast seams like. the 83 roles down the road, 90mph no problem! not the 85 though.
__________________


93 300d-turbo
85 300d(svo)320k
83 300d 440k
84 300d(roommates)260k
83 300td(svo)250k
87 isuzu pup(diesel)svo 320k
96 nissan 240sx(turbo)
08 suzuki m50
95 e350 prowerstroke boxtruck
Reply With Quote
  #5  
Old 12-06-2008, 08:58 PM
81300sd's Avatar
Registered User
 
Join Date: May 2008
Location: Spokane WA
Posts: 312
Sounds like you need to adjust your bowden cable and put in a K1 kit in the valve body.
__________________
81 300SD daily driver/project
86 420SEL (sold)
85 380SE(in the graveyard)
Reply With Quote
  #6  
Old 12-07-2008, 11:23 AM
Registered User
 
Join Date: Dec 2008
Location: columbia, sc
Posts: 99
k1 kit

where do i get a k1 kit and what is it? is the bowden cable the one that runs up to the top of the valve cover from the tranny?
__________________


93 300d-turbo
85 300d(svo)320k
83 300d 440k
84 300d(roommates)260k
83 300td(svo)250k
87 isuzu pup(diesel)svo 320k
96 nissan 240sx(turbo)
08 suzuki m50
95 e350 prowerstroke boxtruck
Reply With Quote
  #7  
Old 12-07-2008, 01:03 PM
81300sd's Avatar
Registered User
 
Join Date: May 2008
Location: Spokane WA
Posts: 312
Yes thats the bowden cable, and I beleive you get the K1 kit from the dealer, think its under $20. I just got a superior shift kit myself as I had more than just the one issue. Superior kit is $53.00 from http://www.bulkpart.com/
__________________
81 300SD daily driver/project
86 420SEL (sold)
85 380SE(in the graveyard)
Reply With Quote
  #8  
Old 12-07-2008, 05:28 PM
Registered User
 
Join Date: Dec 2008
Location: columbia, sc
Posts: 99
what actually does the k1 kit do?
__________________


93 300d-turbo
85 300d(svo)320k
83 300d 440k
84 300d(roommates)260k
83 300td(svo)250k
87 isuzu pup(diesel)svo 320k
96 nissan 240sx(turbo)
08 suzuki m50
95 e350 prowerstroke boxtruck
Reply With Quote
  #9  
Old 12-07-2008, 05:43 PM
Registered User
 
Join Date: Jan 2002
Posts: 18,353
I'd check the transmission vacuum before putting in a kit. Excessive vacuum at the modulator can cause flaring between shifts. If you disconnect the vacuum to the modulator and the shifts firm up, then the problem is vacuum related.

Have you changed the fuel filters?
__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
Reply With Quote
  #10  
Old 12-07-2008, 06:01 PM
Registered User
 
Join Date: Dec 2008
Location: columbia, sc
Posts: 99
yeah changed the filters. its a different power loss than no fuel feel. iv been reading a bunch of stuff on here bout vacuum restrictions today. gonna mess with it some more tomorrow and hook a vacuum gauge n it.
__________________


93 300d-turbo
85 300d(svo)320k
83 300d 440k
84 300d(roommates)260k
83 300td(svo)250k
87 isuzu pup(diesel)svo 320k
96 nissan 240sx(turbo)
08 suzuki m50
95 e350 prowerstroke boxtruck

Last edited by dfralix1; 12-07-2008 at 06:06 PM.
Reply With Quote
  #11  
Old 12-07-2008, 07:37 PM
81300sd's Avatar
Registered User
 
Join Date: May 2008
Location: Spokane WA
Posts: 312
Quote:
Originally Posted by dfralix1 View Post
what actually does the k1 kit do?
Well its a spring that you change in the valve body. I assume that it applys more pressure to the K1 clutch when it shifts to make it shift quicker and therefore not slip when shifting. K1 is assosiated with 2-3 shift.
__________________
81 300SD daily driver/project
86 420SEL (sold)
85 380SE(in the graveyard)
Reply With Quote
  #12  
Old 12-07-2008, 07:42 PM
Registered User
 
Join Date: Dec 2008
Location: columbia, sc
Posts: 99
ok

ok cool thanks for all the info! im gonna get back on it this week.
__________________


93 300d-turbo
85 300d(svo)320k
83 300d 440k
84 300d(roommates)260k
83 300td(svo)250k
87 isuzu pup(diesel)svo 320k
96 nissan 240sx(turbo)
08 suzuki m50
95 e350 prowerstroke boxtruck
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 02:16 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page