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 > Mercedes-Benz SL Discussion Forum

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-13-2017, 01:07 PM
szamik's Avatar
Registered User
 
Join Date: Oct 2015
Location: EU, Poland
Posts: 35
r107 450 K Jetronic plate arm free move and blue plug

Hello

I have got two short questions I am trying to adjust fuel mixture in m117 with k-jetronic. I found that there isn't any clearance between plate arm and piston in fuel distributor. If I press plate I feel tension without few milimiters of free move like it is in m102/3 with KE-Jetronic. Thats my question, there should be some gap between arm and piston like in m102/3 engine?

Second thing, what is it with blue plug (similar like cold start injector) next to fuel distributor?




Thanks :-)
__________________
Five years...
http://124coupe.pl/hosting/images/1.gif
Reply With Quote
  #2  
Old 06-14-2017, 12:26 PM
Registered User
 
Join Date: Aug 2006
Posts: 724
The blue connector is a safety switch so the fuel pump will not run unless the engine is running.
Reply With Quote
  #3  
Old 06-14-2017, 04:46 PM
okyoureabeast's Avatar
Rogue T Tolerant
 
Join Date: Jul 2009
Location: North America
Posts: 1,580
Fair warning, I just recently mucked with this same screw on my 380SL and found myself in a world of hurt.

I highly recommend you borrow an oscilloscope and use that to set the screw by reading the waveform that comes out of pin 3 on the diagnostic connector. I know it's verboten to link to other forums but this guide here will help you figure out how to properly adjust the screw using an o-scope:

K-Jetronic WITH Lambda Overview and Adjustment - Mercedes-Benz Forum
The link redirects to BW. In case the redirect goes dead, simply google K-Jetronic Lambda Overview with Adjustment.
__________________
Quote:
Originally Posted by Yak View Post
Going back to the original post: "Can you get the vac to blow instead?" No. Vacuums are low pressure so they by nature "suck" and nature abhors them.
1984 380SL
Reply With Quote
  #4  
Old 06-14-2017, 10:11 PM
Registered User
 
Join Date: Feb 2011
Location: Modesto CA
Posts: 2,748
Quote:
Originally Posted by szamik View Post
That's my question, should there be some gap between arm and piston like in m102/3 engine?
Kjet (basic), and Kjet (Lambda) operate with the metering plunger in contact with the arm at all times.
Only KEjet has a gap at rest.
Reply With Quote
  #5  
Old 06-15-2017, 03:08 AM
szamik's Avatar
Registered User
 
Join Date: Oct 2015
Location: EU, Poland
Posts: 35
Thank you guys, thats what I want to know :-)

Quote:
Originally Posted by okyoureabeast View Post
I highly recommend you borrow an oscilloscope and use that to set the screw by reading the waveform that comes out of pin 3 on the diagnostic connector. I know it's verboten to link to other forums but this guide here will help you figure out how to properly adjust the screw using an o-scope:
.
I'm working with 450 kjet without lambda control so I think o-scope will not work in this case ;-)
__________________
Five years...
http://124coupe.pl/hosting/images/1.gif
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 08:47 PM.


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