O.S. Crankcase 18CV-R

Tower Stock# OSMG4205  •  Manufacturer Stock# 21811000
Notes from our tech department:
This is the Crankcase for the OS .18 CV series of engines.

FEATURES

Cast and machined natural aluminum construction

INCLUDES

One crankcase

REQUIREMENTS

All other components of the engine

SPECIFICATIONS

Width between mounting holes same side: 0.4" (11mm)
Width between mounting holes opposite side: 1.2" (31.4mm)
Width of crankcase including mounting flanges: 1.6" (40mm)
Width of crankcase neglecting mounting flanges: 0.9" (25mm)
Height: 2" (51.3mm)
Length: 1.8" (47.8mm)
Exhaust port length: 0.8" (22.2mm)
Exhaust port height: 0.2" (4.6mm)
Diameter of mounting flange holes: 0.1" (3.2mm)
Diameter of muffler mount holes: 0.1" (3.2mm)
Diameter of carb orifice 0.4" (11mm)
Diameter of carb retaining screw hole: 0.1" (3.9mm)

tjt 050504
ir/jxs

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