ACCELERATOR PUMP DIAPHRAGM
Weber DCNF & DCNVH series carburetors
Accelerator pump diaphragms are the most common failure part on the Weber DCNF & DCNVH carburetors.
The neoprene membranes can crack or split reducing throttle response, and causing external fuel leaks.
They should be checked anytime there is some irregularity in the throttle response.
These modern production diaphragms are engineered to outlast the original type.
Maserati Numb. MC 69701, 312220115
Weber 42DCNF or 44DCNF
Quattroporte I, Mexico, Ghibli, Indy, Bora, Merak, Khamsin, Quattroporte III, Kyalami
Biturbo (1982 -1985)