Idle screw? - Page 2 - Mercedes-Benz Forum
Reply
 
LinkBack Thread Tools Display Modes
#11 (permalink) Old 01-06-2013, 08:04 AM
Bob's yer uncle!
 
nobby's Avatar
 
Date registered: Feb 2005
Vehicle: '83 280 SL 5 speed - The PIG
Location: Barrie, Ontario, CANADA, eh?
Posts: 22,395
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Quote:
Originally Posted by bradsscooters View Post
I know, just nothing specific for the 1983 500 SL I recently picked up.
You don't need the specifics of the 500SL....just the theory. I have a 280 and have to adapt most info to my needs.

That mixture screw is the LAST thing to fiddle with.

If you have a cold start problem you should trouble shoot the cold start valve first. That valve gives a cold engine a snort of gas...............kinda like manually pumping a gas pedal on a carburated engine.

Quote:
Originally Posted by rocky raccoon View Post
Soldier on Old Chap. The Pig is you and you are the Pig.
nobby is offline  
Sponsored Links
Advertisement
 
#12 (permalink) Old 01-06-2013, 08:08 AM
BenzWorld Veteran
 
bradsscooters's Avatar
 
Date registered: Jul 2010
Vehicle: 1989 560 SEL, 1993 400 SEL, 1986 420 SEL, 1977 450 SL, 1984 300D, 1981 380 SL, 1983 500 SL
Location: Sebastian, Florida
Posts: 606
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Nobby, I'm looking at it now. When I turn the key to the "on" position, shouldn't I get voltage at the plug, like with the ICV, or is it opposite, meaning that voltage won't exsist until the car is warmed up? Just need to clarify this.

bradsscooters is offline  
#13 (permalink) Old 01-06-2013, 08:13 AM
Bob's yer uncle!
 
nobby's Avatar
 
Date registered: Feb 2005
Vehicle: '83 280 SL 5 speed - The PIG
Location: Barrie, Ontario, CANADA, eh?
Posts: 22,395
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Quote:
Originally Posted by bradsscooters View Post
Nobby, I'm looking at it now. When I turn the key to the "on" position, shouldn't I get voltage at the plug, like with the ICV, or is it opposite, meaning that voltage won't exsist until the car is warmed up? Just need to clarify this.
To what? The CSV?

You would only get a quick 'flash' of voltage there...me thinks.

The best way to see is if it's working is to remove the cold start valve from the intake and put a container underneath it. Then (engine cold) turn the key and see if the valve squirts into the container.

Quote:
Originally Posted by rocky raccoon View Post
Soldier on Old Chap. The Pig is you and you are the Pig.
nobby is offline  
#14 (permalink) Old 01-06-2013, 08:22 AM
BenzWorld Veteran
 
bradsscooters's Avatar
 
Date registered: Jul 2010
Vehicle: 1989 560 SEL, 1993 400 SEL, 1986 420 SEL, 1977 450 SL, 1984 300D, 1981 380 SL, 1983 500 SL
Location: Sebastian, Florida
Posts: 606
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Okay, I will give that a try. Is there a gasket there that would need replacing?

bradsscooters is offline  
#15 (permalink) Old 01-06-2013, 08:34 AM
BenzWorld Elite
 
petesmga's Avatar
 
Date registered: Aug 2009
Vehicle: 1979 280sl 4 sp w/ac 1957 MGA 1998 volvo xc/70 2004 F150
Location: western mass. usa
Posts: 5,967
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
There is a gasket but it usually comes off clean, if not anthing in a tube. I think the CSV is a little more than a 1 time snort, maybe 10-15 secs worth of extra gas.
petesmga is offline  
#16 (permalink) Old 01-06-2013, 08:39 AM
Moderator
 
rowdie's Avatar
 
Date registered: Jun 2008
Vehicle: '73 450SL: '81 280SL: 1986 560SL: '84 500SL AMG: 1984 280SL 5 speed (Strassenkröte)
Location: OklahoMoKan
Posts: 23,424
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Lifetime Premium Member
Quote:
Originally Posted by petesmga View Post
There is a gasket but it usually comes off clean, if not anthing in a tube. I think the CSV is a little more than a 1 time snort, maybe 10-15 secs worth of extra gas.
Length of time depends on temperature. IIRC the thermal time switch controls this.
rowdie is offline  
#17 (permalink) Old 01-06-2013, 08:46 AM
BenzWorld Veteran
 
bradsscooters's Avatar
 
Date registered: Jul 2010
Vehicle: 1989 560 SEL, 1993 400 SEL, 1986 420 SEL, 1977 450 SL, 1984 300D, 1981 380 SL, 1983 500 SL
Location: Sebastian, Florida
Posts: 606
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
I have read that the thermal time switch controls that, so I will check that now.... OT, since both of you, Rowdie and Nobby, are here, where does the power supply come from to feed the plug for the ICU? I know it's "off-topic" but I'm working on two cars at once!

bradsscooters is offline  
#18 (permalink) Old 01-06-2013, 09:12 AM
Moderator
 
rowdie's Avatar
 
Date registered: Jun 2008
Vehicle: '73 450SL: '81 280SL: 1986 560SL: '84 500SL AMG: 1984 280SL 5 speed (Strassenkröte)
Location: OklahoMoKan
Posts: 23,424
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Lifetime Premium Member
I do not know. I am terrible at reading wiring diagrams. Especially the ones in the on line or CD manual.
rowdie is offline  
Reply

  Mercedes-Benz Forum > Mercedes-Benz Roadster Forums > R/C107 SL/SLC Class


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome