Degree wheel and method of using the same

Details Degree wheel and method of using the same Degree wheel and method of using the same

1984-04-12

1986-04-08

Kreitman, Stephen A.

Measuring and testing

Test stand

For engine

33181AT, 116DIG21, G01M 1500

Patent

active

045804460

ABSTRACT:
An improved degree wheel device includes a degree wheel which is adjustably rotatable relative to the crankshaft on which it is carried. The wheel can be easily adjusted so that a zero degree reading corresponds to top dead center of piston travel. Much of the calculation necessary to determine cam phasing, cam lobe centerline, valve overlap, and the like is thereby eliminated. The degree wheel preferably includes counterclockwise 0.degree. to 360.degree. indicia for a direct and calculation-free determination of the duration of tappet lift.

REFERENCES:
patent: 3283569 (1966-11-01), King et al.
patent: 3949702 (1976-04-01), DeLong
patent: 4081995 (1978-04-01), Griffith et al.
patent: 4262526 (1981-04-01), Makita
patent: 4263868 (1981-04-01), Fukui
patent: 4296629 (1981-10-01), Vuyovich
B. Pendergast, "Valve Timing", Speed Tuning and Trouble Shooting, pp. 46-53, 1963.

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