A spring compressor is among the most infamous tools available to home auto mechanics. Its job and operation are straightforward: It just squeezes a spring so that you can remove or install it from a ...
Airborne Flying Services of Hot Springs, Ark., developed and now offers the Valve Wizard, a set of three valve spring compressor tools for Lycoming O-235, O-290, IO/O-320, IO/O-360, AEIO-360, O-435, ...
Although the basic purpose of a valvespring is to close the valve while also ensuring that the valvetrain stays in contact with the cam lobe, it must perform this feat under grueling conditions that ...