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 > Vintage Mercedes Forum

LinkBack Thread Tools Display Modes
Old 03-31-2013, 06:00 PM
Registered User
Join Date: Mar 2013
Posts: 12
Just picked up a 1960 300d - fuel mix adjust?

I just picked up a 1960 300d Adenauer with a hydrak. It's good, solid, and very complete. The previous owner has a lot of work done (IP, fuel, etc)

When I bought the car, 3 of 6 plugs were fouled.. I am guessing it was running too rich. It definitely smells rich.. how does one adjust the mixture? After changing the plugs, she runs really well and is fun to drive (after replacing the shifter handle bushing)

allthough pretty complete, there was no owner's manual. I'd love to find even a scan of the owner's manual for this car.

I'd like to replace the bulbs in the instrument cluster and look at the wiring situation behind the dash. can anyone tell me the procedure for cluster lamp replacement / dash deinstallation?

There used to be a site -- but that seems to have gone away. I was hoping to find some info there. does anyone know what happened to it?
Reply With Quote
Old 03-31-2013, 08:20 PM
diesellac's Avatar
Join Date: Aug 2009
Location: illinois
Posts: 101
you can use the internet wayback machine to view that site.
if you want to use their old tech articles.
1974 240d
1983 240d -sold
1989 420sel with om606
1994 s350 turbodiesel - sold

Reply With Quote
Old 04-02-2013, 12:31 PM
Join Date: Sep 2005
Posts: 664
Maybe these will be of some help....

By the way, some of the Mercedes from this era had to have the fuel adjusted with the front tires turned one way or the other fully because of a boost valve that fed additional fuel to the engine in order to keep the idle stable when the power steering was at its' highest pressure. If the car dies when you turn the wheels to the max right or left then start searching for this valve.
Attached Thumbnails
Just picked up a 1960 300d  - fuel mix adjust?-imgp3523.jpg   Just picked up a 1960 300d  - fuel mix adjust?-imgp3524.jpg  
Reply With Quote
Old 04-03-2013, 10:57 AM
Registered User
Join Date: Dec 2010
Posts: 1,858
Fuel mixture at idle is adjusted at the back of the IP. Look for a knob which you push in and then turn left or right when looking at the back of the pump. Left is less fuel and right will give you more. Turn it two or three clicks at a time and then adjust using the air ballance screw. Adjust the ignition timing until you get a smooth and consistant idle. It's not hrd to do but then it's not that easy if you are not familiar with the car.

You should also check to make sure the cold start valve isn't leaking and that the warm up regulator is moving freely so that the mixture leans out as the engine warms up.

I have a dealers parts book if you need any help.
Reply With Quote
Old 04-04-2013, 10:30 AM
Registered User
Join Date: Sep 2004
Location: Chapel Hill, NC
Posts: 151
Make sure the engine is not running when you turn the knob.
Reply With Quote
Old 04-04-2013, 04:08 PM
Registered User
Join Date: Aug 2007
Location: Middle Haddam, CT
Posts: 251
These are such wonderful cars, but so expensive to make right that there aren't a lot of nice ones left. Could you post some pictures?
Berfinroy in CT
Present vehicles:
1973 300 SEL 4.5
1959 Rolls Royce Silver Cloud I
Past vehicles;
1958 Bentley S 1
1976 ex-Max Hoffman 6.9
1970 300SEL 2.8
1958 Jaguar MK IX
1961 Jaguar MK IX
1963 Jaguar E-type factory special roadster
1948 Plymouth woody
1955 Morgan plus 4
1966 Shelby GT350H Mustang
Reply With Quote
Old 04-05-2013, 02:55 AM
Join Date: Sep 2005
Posts: 664
I just noticed from the diagram I posted that the ignition switch runs through the oil pressure gauge. This will prevent the engine from running with no oil pressure.

Pretty smart. This feature did not appear on American cars until about 1980.
Reply With Quote
Old 06-25-2013, 10:40 PM
klaus kallas's Avatar
Registered User
Join Date: Jan 2001
Location: Clayton, NC
Posts: 491
My Adenauer no longer has Mercedes power and I can't offer advice on your problem, however, I do have the owners manual and engine service manual if you would like scans of something in particular. PM me if so.

Btw- the Adenauer chat moved to :
Must join group to chat, but very knowledge bunch there.

Good luck!
‘84 300TD “Mountain Goat”
'62 300d Adenauer-350 Chevy - "Max"
'15 VW Passat TDI
'16 Dodge Ram 3500 - Cummins w/6-speed
'68 Mustang fastback
'55 T-bird
‘63 Studebaker Hawk
Reply With Quote


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 12:34 AM.

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