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High-quality ADDY 4-bearing engine housing, which forms the engine block for a Puch moped with an E50 engine.
New features include a kickstand mount, milled (rather than cast) overflow channels, and a shallower cast recess for GME systems, allowing the housing to be bored out to accommodate large cylinders with a bore diameter of up to 58 mm. Furthermore, the serial number has been repositioned so that it is now located on the right side. This allows you to stamp the frame number into the top surface as needed.
The housing was specifically designed and manufactured for the tuning sector; therefore, some components—such as the mounting surface for a kickstarter—have been omitted.
The housing features the following special characteristics:
- Enlarged sealing surface in the area of the cylinder base
- Casing screws slightly offset outward, leaving more space for larger overflow channels
- Pre-milled surface for GME intake systems
- Locating pins for secure positioning when assembling the housing halves
- Additional threads for more flexible ignition installation
- Extra-large cooling fins in the lower section for better heat dissipation and thus reduced wear on the crankshaft bearings
- Stand mount, 3 M6 threads at the original spacing
- Approved for all SAM moped racing and moped cross categories
- Cylinder stud hole pattern: 44 x 44 mm
- Cylinder neck diameter: 48.4 mm (can be reamed up to 58.0 mm if no GME is installed)
Installation tips:
- When installing original intake components and an SRE carburetor, a 2 mm-thick intake gasket must be used to ensure the float chamber does not rest on the GME block.
- Using the included washers, various gear wheels with different positions—such as those found in 3-bearing or MBR transmissions—can be properly spaced. Be sure to check that the gear wheel is properly centered before reassembly!
- Use the following screw lengths: 7 pcs. M6 x 35 mm / 6 pcs. M6 x 50 mm
Note: If you plan to use a center stand, we recommend using a sturdy center stand, as there is a stand stop only on the left side.
A quality product from the ADDY by Schöb Engineering brand.
Alternative to the original Puch part number: 349.3.10.332.0
| Manufacturer | ADDY |
| Material | Aluminum |
| Alternative version of the Puch OEM number | 349.3.10.332.0 |
| Puch | E50 |
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