Outboard motor including easy withdrawal and insertion of camsha

Details Outboard motor including easy withdrawal and insertion of camsha Outboard motor including easy withdrawal and insertion of camsha

1994-06-03

1995-06-06

Yuen, Henry C.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder head

123198E, 123195P, 123198C, 123196W, 123 9027, 440900, F02F 700

Patent

active

054212987

ABSTRACT:
Disclosed herein is an outboard motor comprising a cylinder block having a horizontally extending lower mounting surface and a rearwardly located vertically extending cylinder head mounting surface, a cylinder head fixed to the cylinder head mounting surface, extending rearwardly from the cylinder block, and including a bottom wall portion having therein a rocker arm support shaft aperture and a camshaft aperture, a camshaft supported vertically and horizontally in the cylinder head about an axis located rearwardly of the cylinder head mounting surface, a rocker arm support shaft supported vertically and horizontally in the cylinder head about an axis located rearwardly of the cylinder head mounting surface, and a lower unit including a driveshaft housing supporting a propeller fixed to the cylinder block lower mounting surface and including an upper rearward profile located forwardly of the camshaft aperture and the rocker arm support shaft aperture and extending so as to enable, when the housing is fixed to the cylinder block, insertion and withdrawal of the rocker arm support shaft through the rocker arm support shaft aperture in the bottom wall portion of the cylinder head and insertion and withdrawal of the camshaft through the camshaft aperture in the bottom wall portion of the cylinder head.

REFERENCES:
patent: 4493661 (1985-01-01), Iwai
patent: 4562797 (1986-01-01), Suzuki
patent: 4621595 (1986-11-01), Suzuki
patent: 5163394 (1992-11-01), Koishikawa et al.
patent: 5215164 (1993-06-01), Shibata
patent: 5309877 (1994-05-01), Shigedomi et al.

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