Metal working – Means to assemble or disassemble – Valve applying or removing
Patent
1990-12-03
1991-08-27
Watson, Robert C.
Metal working
Means to assemble or disassemble
Valve applying or removing
B23P 1904
Patent
active
050421280
ABSTRACT:
The present invention entails a hand tool for use in removing a valve spring retainer forming a part of a conventional valve assembly of an internal combustion engine. The tool includes a lever secured to a threaded bolt and pivotally mounted to that same bolt. A seat is formed on the bottom of the bolt and functions to seat within a push rod bore of an internal combustion engine. An end portion of the lever is adapted to rest atop the spring of the valve assembly. Finally, an intermediate opening is formed in the lever for receiving a threaded bolt that extends up from the internal combustion engine between the valve assembly and the push rod bore. A nut is threaded downwardly on the bolt that extends through the intermediate opening within the lever and consequently restricts the vertical movement of the intermediate section of the lever. By selectively turning the elongated rod that seats within the push rod bore, the end of the lever that is connected to the bolt is caused to move upwardly. Because the vertical movement of the intermediate section of the lever is restricted, the end section of the lever that is engaged with the valve spring is caused to move downwardly, depressing the valve spring and separating it from the valve spring retainer thereby facilitating the removal of the valve spring retainer.
REFERENCES:
patent: 3080645 (1963-03-01), Moreland
patent: 4567634 (1986-02-01), Landry
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