Weber 42 DCNF Rebuild tutorial Citroën SM / Maserati Merak

In this video I will show you how to rebuild the Citroën SM carbs (WEBER DCNF 42). Also used on many other Maserati's (Merak, Bora, Quattroporte iii, indy, ghibli, kyalami etc) and Aston Martin's from the 70/80's.

[@GeminicoD]

Thank you for taking the time to detail all these operations. This will be very useful to me !

[@tommusikauswahl1066]

Thank yolu so much for sharing your knowledge with us!!

[@telecomscarsdiyandmore4272]

Thanks, very helpful. I have an Aston Martin with 4 of these beasts and although I have stripped them before, I never found out how to remove the 2 spring clip jets. Very timely because I am starting to strip them after a 4 year non-running period, and clean out the varnish-lacquer inside.
Any suggestions on the white corosion on the outside of a body? Looking for a method to gently stop it.
Looking forward to your next one on setup.

[@Aymane-oc8ye]

How would you describe the reliability of this engine? Or the car in general

[@iltridente48]

Have you ultrasonic cleaned them? Idk if the corrosion will go off. What kind of aston is it? The spring clip jets can be a bit tricky and they can fly anywhere and you will never find them again

[@telecomscarsdiyandmore4272]

Sorry, missed your reply.
Yes, ultrasonic throughout, now looking nice and ready to go.
3D printed the carb level gauges, much easier than using calipers.
Corosion seems to have been stopped - cleaned outside with Acetone then applied WD40 as an initial barrier layer.
I have a AM-V8 from the early 1970s, just after they switched away from mechanical fuel injection