Engine housing / crankcase AKOA incl. bearing for Puch moped E50 engine 53898

Here are the hard-hitting advantages of this motor housing:

• Enlarged sealing surface in the area of the cylinder base.
• Casing bolts slightly offset to the outside, leaving more space for larger transfer ports.
• Prepared planned surface for GME intake systems. Locating pins for secure positioning when assembling the housing halves.
Additional threads for more flexible ignition assembly.
• XL cooling fins in the lower area for better temperature dissipation and thus reduced wear on the crankshaft bearings.
• Attention: No stand mount, 3 pcs. M6 threads at the original spacing are available
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• Approved in all SAM moped racing and moped cross categories.

Hole pattern cylinder studs: 44 x 44mm
Ø cylinder neck: 48.4 mm (can be spindled up to 53.0 mm if no GME is installed)

Installation tips: When fitting original intake components and an SRE carburettor, at least a 2 mm thick intake gasket must be used so that the float chamber does not stand up on the GME block. With the help of the supplied shims, various gear wheels with different positions, such as those of the 3-bearing or MBR gearboxes, can be cleanly spaced out.

Before assembly, make sure that the gear wheel is properly centered! The following screw lengths should be used: 7 pcs. M6 x 35 mm / 6 pcs. M6 x 50 mmThe screws are not included in the scope of delivery!

OEM Puch spare part number for comparison purposes: 349.3.10.332.0