Valve clearance adjustment mechanism
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United States of America Patent
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-
Apr 20, 2004
Grant Date -
Jan 1, 2004
app pub date -
Oct 1, 2002
filing date -
Jun 28, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve clearance adjustment mechanism for use in small internal combustion engines such as, for example, side valve engines and overhead valve engines, which generally include intake and exhaust valves actuated by lifters pivotally mounted within the engine housing, which in turn are actuated by cam lobes driven in timed rotation with the crank shaft. An adjustment member is provided for mounting each lifter to a shaft, wherein the adjustment member is eccentric relative to the shaft, such that rotation of the adjustment member modifies the position of the lifter and in turn modifies the valve clearance between the lifter and the valve. After the valve clearance has been properly set, the adjustment member is fixed in position.
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