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 > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-25-2006, 06:10 PM
350SL4spd's Avatar
Registered Loser
 
Join Date: Feb 2004
Location: WNY/NoVA
Posts: 1,182
Can You Tune a 450SL Transmission?

My '75 450SL Granny shifts so bad it's embarrassing. I know on the old diesls you could tune in the tranny, setting how hard she shifted and how late she shifted.

Can it be done on a gasser? If so, How?

__________________
Currently:
1972 350SL Euro 4spd
1973 BMW R75/5
1981 BMW R80GS
1995 FZJ80 with OM606 Conversion In Progress
Reply With Quote
  #2  
Old 06-25-2006, 06:19 PM
MTI's Avatar
MTI MTI is offline
Registered User
 
Join Date: Nov 2002
Location: Scottsdale, Arizona
Posts: 10,626
To a degree, yes and in the same manner as the diesel transmission . . . via the vaccum modulator valve.
Reply With Quote
  #3  
Old 06-25-2006, 07:23 PM
Tomguy's Avatar
Vintage Moderator
 
Join Date: Aug 2002
Location: near Scranton, PA
Posts: 5,407
Your 450 most likely has a shift control rod hooked up to the linkage. Labeled "Kickdown" in this picture: http://www.peachparts.com/shopforum/attachments/vintage-mercedes-forum/18507d1085104722-picture-request-labeled.jpg
Or the very top right in this picture: http://www.peachparts.com/shopforum/attachments/vintage-mercedes-forum/18505d1085103225-picture-request-dscf0123-.jpg

I am assuming the 107 has the same control rod the 108/109's do. Lengthening this rod delays shifts, shortening it lengthens them.

Edit: If your shifting is rough make sure the line from the manifold to the modulator is connected properly. The rubber tube came off on mine, making shifting VERY rough.
__________________
Current:
2021 Charger Scat Pack Widebody "Sinabee"
2018 Durango R/T

Previous:
1972 280SE 4.5
2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
1999 Chrysler 300M - RIP @ 221k
Reply With Quote
  #4  
Old 06-25-2006, 07:43 PM
350SL4spd's Avatar
Registered Loser
 
Join Date: Feb 2004
Location: WNY/NoVA
Posts: 1,182
Ah yes, the vacuum modulator. I know what to do w/ one of them. And I definitely need harder shifts.

Later shifts wouldn't hurt either. I'll look into the rod.

Thanks!

__________________
Currently:
1972 350SL Euro 4spd
1973 BMW R75/5
1981 BMW R80GS
1995 FZJ80 with OM606 Conversion In Progress
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 09:21 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page