W111 mechanical fuel injection cold start 1963 W111 220 SEB - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 06-14-2006, 06:52 AM Thread Starter
BenzWorld Junior Member
Date registered: Jan 2006
Vehicle: W111 W113 R107
Location: Atlanta
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W111 mechanical fuel injection cold start 1963 W111 220 SEB

W111 mechanical fuel injection cold start 1963 W111 220 SEB

I'm looking for an original cold start-wiring diagram for a 1963 W111.
The Haynes manual describes that the time/ thermal switch is connected to the cold start valve on the intake manual. The single temp switch operates the cold start solenoid on the mechanical fuel pump. -- Well on my car it is obviously wired the opposite way. It appears to have come like this by the factory, unless somebody had remade the wiring harness. Hopefully I can find an original wiring diagram for my 1963 220 SEB W111 to verify what is correct.

Thanks Rolf

Rolf Janssen
Everyday vintage Mercedes driver, seldom car washer! Only happy when all works W111 W113 R107

Automotive R&D Engineer
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post #2 of 2 (permalink) Old 07-29-2007, 03:29 PM
BenzWorld Senior Member
Date registered: May 2007
Vehicle: 64' 220SEc, 72' 300SEL 6.3, lots of parts
Location: San Diego/Spring Valley
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These electro-mechanicals are very basic,
the sensors can be removed, chilled/heated and tested with Ohmmeter.
Then relays can be tested from the sensor location.
and the activated solenoid can be next.
Do you have a visual where the parts are located?
I have boxes of spares for substitution testing

I pulled a W111 wiring assembly years ago, Saved it
I would have to find it, I would never dispose of it.

I don't lnow where the wiring chart is.
Is this the MFI with the cold start solenoid haning aft?
And the squirter on the side of the intake manifold?

Brian O

Last edited by bostosh; 07-29-2007 at 03:33 PM.
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