Quattrini Competizione C1 engine casing for Vespa 50 - Primavera - ET3

Description

Carter Quattrini C1

Carter for Vespa Special, Et3 and PK entirely cast and processed in Italy. They are reinforced in thickness in every part, made of shell with hardened Galsi9 material and assembled with 13 6mm Allen screws. On the flywheel side they are machined so as to also accommodate the Vespatronik ignition and in the upper part they are designed for mounting mufflers that turn behind the shock absorber (type M3XC, Type R or similar). In the front part there is a reed rack in a central position spacious enough to accommodate a large reed pack (slightly smaller than the M1L 09). Originally it is closed by casting however it will be enough to open it to mount cylinders without suction. The support arm is much more robust than the original, shaped to allow the use of a 3,50 / 10 rubber. They are also equipped with support for the water pump which takes the movement from the quadruple of the gearbox (third gear). The wide and thick crankcase is made to house various types of cylinders of the M, R or other brands, without welding overlays. Inside, the pump casing is machined for the assembly of its dedicated full shoulder shaft, with a 48mm long coupling axis, 6304-4-20mm main bearings (code 52 / c15) and 20-35-7mm oil seals both removable from the outside. As for all the other components (gearbox, wheel axle, selector, etc ...) it is possible to mount original spare parts.