Adjustable lash valve train for overhead valve engine

Details Adjustable lash valve train for overhead valve engine Adjustable lash valve train for overhead valve engine

1988-05-20

1989-08-15

Wolfe, Willis R.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9041, 123 9061, F01L 122, F01L 114

Patent

active

048564672

ABSTRACT:
An adjustable valve lash train for an overhead valve engine includes a rocker arm stud having a threaded shank received in a correspondingly threaded bore in said cylinder head. The rocker arm stud includes an integral head having a spherically shaped bearing surface on the undersurface thereof in engagement with a correspondingly shaped bearing surface on the rocker arm. The head of the rocker arm stud includes a hexagonally shaped recess in the top surface thereof for receipt of an adjustment tool. A threaded jam nut is received about the threaded shank of the rocker arm stud for selectively locking the threaded shank against rotation with respect to the threaded bore of the cylinder head. A push rod guide plate is sandwiched between the cylinder head and the jam nut adjacent the shank of the rocker arm stud for controlling lateral displacement of a push rod.

REFERENCES:
patent: Re24035 (1955-07-01), Leach
patent: 2669981 (1954-02-01), Leach
patent: 2771866 (1956-11-01), Sampietro
patent: 3054392 (1962-09-01), Thompson
patent: 3064635 (1962-11-01), Rohrbacher
patent: 3301238 (1967-01-01), Hanley
patent: 3359959 (1967-12-01), Rose
patent: 3401678 (1968-09-01), Rose
patent: 3589346 (1971-06-01), Warren et al.
patent: 3592174 (1971-07-01), Heidacker
patent: 4601267 (1986-07-01), Kronich

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