the spacer 15 is preferably stacked and concentric to the reed plate 11 which is preferably stacked and concentric to the rotor 1 when the device is in use in a preferred embodiment the reed plate 11 is approximately 0 3 mm thick the thickness of the spacer 15 depends on the thickness of the grooves or worm trails in a preferred embodiment the grooves are approximately 4 mm deep and the spacer is approximately 10 15 mm thick oil comes through the cam shaft into the rotor 1 a make up oil hole 2 also receives oil from the cam a hole 4 for phasing provides oil to passageways 6 which lead to a first fluid chamber a second hole 5 for phasing provides oil to passageways 7 which leads to a second fluid chamber a pin 10 is preferably located on the rotor 1 to orient the camshaft the chamber reed valves 13 and 14 are aligned with the recesses 8 and 9 the chamber reed valves 13 and 14 on the reed plate 11 are preferably tabs or flapper valves which work as check valves when the system is pressurized forward it pushes the chamber reed valves 13 and 14 down when the system is less pressurized the chamber reed valves 13 and 14 close the chamber reed valves 13 and 14 act as check valves for the system fasteners for example bolts 3 preferably fasten the rotor 1 the reed plate 11 and the spacer 15 together the spacer 15 includes a cavity 16 where oil is fed through the camshaft and make up oil is fed through.