Die Bosch D-Jetronic war 1967 die erste Großserien elektronische Einspritzung der Welt. - Bosch's D-Jetronic was the first mass-production electronic fuel injection.

1973 MB 450SL Throttle Switch- Should Injectors Fire?

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5 years 6 months ago #12628 by Dr-DJet
Replied by Dr-DJet on topic 1973 MB 450SL Throttle Switch- Should Injectors Fire?
Hi Norbert,

I am confused. Dwell is the angle (with 360° meaning a full turn) where the ignition contact is closed. In ignition contact we will find that repeatedly by no. of cylinders during one full trun of distributor. And it is the same meaning on trigger contacts.You can either measure dwell for 1 cyl. engines or measuring closing angle of rotation.
Viele Schraubergrüße - best regards, Dr-DJet Volker
Alles für den Mercedes-Benz R/C 107 und W116 in der SLpedia Sternzeit 107
Workshops Heizung/Klima 10.5.(HU), D-Jetronic 28.6.(F),20.9.(ER), K-Jetronic 31.5.(ER),23.8.(F)

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5 years 6 months ago #12653 by nordfisch
Replied by nordfisch on topic 1973 MB 450SL Throttle Switch- Should Injectors Fire?
Hi,
in the meantime I talked to Volker and by fortune received a very fine printout of the oscilloscope readings.
One can see opening and closing time are really not the same lenght, Volker is right.

Closing angle is about 140°, not 180°.

Regards
Norbert

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