WEBER 40 DCNF
The Weber 40 DCNF is a vertical dual-barrel carburetor belonging to the family of Weber carburetors used on many automotive engines in the 1970s and 1980s. Designed to provide precise and reliable carburetion, it was fitted to various European vehicles, particularly on sports engines and several prestigious Italian automobiles.
This carburetor can notably be found on iconic models such as the Ferrari 246 GT, the Ferrari 308 GT, the Fiat Dino Coupé, and certain Lamborghini Urraco in their P300 and Urraco S versions.
Valued for its compactness and ability to provide stable carburetion, the Weber 40 DCNF is still used today in restorations and engine preparations on vintage vehicles.
Like other Weber carburetors, it consists of numerous adjustable components such as jets, needle valves, floats, and adjustment elements, allowing for precise adaptation of carburetion to the engine's characteristics.
The exploded view of this carburetor makes it easy to identify its various parts and quickly find the necessary part for the maintenance or restoration of this model.
| Gasket kit 40 DCNF | 43 | 5553001 | Washer | ||
| 1 | 31716082 | DCNF Cover | 44 | 47610078 | Return spring |
| 2 | 64955007 | Stud | 45 | 45041049 | Control lever |
| 3 | 41705029 | Cover gasket | 46 | 64755007 | Mixture screw |
| 4 | 61280056 | Rod | 47 | 47600007 | Mixture screw spring |
| 5 | 32610006 | Pin | 48 | 47600007 | Mixture screw spring |
| 6 | 52000010 | Float spindle | 49 | 12785013 | Spacer |
| 7 | 64700012 | Screw | 50 | 64625014 | Idle screw |
| 8 | 41535015 | Needle valve gasket | 51 | 32556017 | Choke housing |
| 9 | 12775010 | Washer | 52 | 10085009 | Axle |
| 10 | 79514175 | Needle valve 175 | 53 | 32556016 | Choke cover |
| 11 | 77501 | Air jet | 54 | 47610043 | Return spring |
| 12 | 45096020 | Choke rod | 55 | 45025089 | Control lever |
| 13 | 45096019 | Rod | 56 | 5552501 | Washer |
| 14 | 64615004 | Screw | 57 | 3471501 | Nut |
| 15 | 64290014 | Pump jet screw | |||
| 16 | 61450 | Emulsion tube | 59 | 64700004 | Choke screw |
| 17 | 41015005 | Float | 60 | 55510038 | Washer |
| 18 | 32486041 | Pump cover | 61 | 72129 | Venturi |
| 22 | 76215 | Accelerator pump jet | 62 | 71107 | Auxiliary Venturi |
| 23 | 41530012 | Accelerator pump jet gasket | 63 | 75605 | Choke jet |
| 24 | 73405 | Main jet | 64 | 64330008 | Choke piston |
| 25 | 74405 | Idle jet | 65 | 47600139 | Return spring |
| 26 | 41565002 | Idle O-ring | 66 | 12775024 | Spring guide |
| 27 | 52570006 | Idle jet holder | 67 | 10140002 | Retaining washer |
| 28 | 47600107 | Pump spring | 68 | 6100201 | Filter nut |
| 29 | 4740705 | Pump diaphragm | 69 | 41530024 | Gasket |
| 30 | 64700006 | Pump screw | 70 | 61060001 | Filter ring |
| 31 | 34710003 | Shaft nut | 71 | 37020002 | Fuel filter |
| 32 | 55520004 | Retaining washer | 72 | 55510034 | Washer |
| 33 | 12750032 | Washer | 73 | 64700005 | Cover screw |
| 34 | 14852 | Pump cam | 74 | 64750002 | Bypass screw |
| 36 | 10005211 | Throttle shaft | 75 | 34705001 | Bypass screw nut |
| 37 | 6400502 | Throttle plate | |||
| 38 | 64520027 | Throttle screw | |||
| 40 | 32650001 | Bearing | |||
| 41 | 58000017 | Bearing cover plate | |||
| 42 | 12750053 | Spacer |