Valve spring compressor

Details Valve spring compressor Valve spring compressor

B - Operations, Transporting

25

B

B25B 27/26 (2006.01)

Patent

CA 2312125

A valve spring compressor is provided for compressing valve springs in a cylinder head assembly so that a selected valve can be released and removed for repair or replacement. The valve spring compressor includes an adjustable C-shaped frame defining opposing jaws, the first jaw having a foot adapted to engage a spring retainer but adapted to move past a rod end of the valve, the second jaw being adapted to engage a valve-sealing end of the valve. A power-assisted actuator (in the form of a piston and extendable rod) and a manual control (in the form of a manually shiftable spool valve) is incorporated into a housing in the second jaw in a manner forming an integral handle. The manual control is movable to first, second, and third positions where the rod is retracted, extended, or located in an intermediate position. The first jaw has an apertured foot adapted to engage the retainer but adapted to move past the rod end. The foot has a concave retainer-engaging surface that is adapted to stably nestingly engage the retainer despite a specific size of the retainer and valve spring being unknown ahead of time. The C-shaped frame is adjustable and includes first and second subframes. The second subframe slidably engages the first subframe, and a finger-operated trigger lock releasably engages the first subframe to permit quick adjustment of the first subframe relative to the second subframe.

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