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 ...

To use this tool, you will need to remove the coilover from the car. The spring compressor hooks can handle spring diameters from 3.5-inch to 11.5-inch and compress 3,000 pounds.

Proform's new Pneumatic Valve Spring Compressor can cut cylinder head disassembly time in half. Pulling the tool's trigger supplies up to 350 pounds of force using 125-psi air-compressor pressure.

Springs, floor jacks, compressor tool, ... After another trip and an exchange for the right coil spring compressor, the front end of my 58 Chevy truck was assembled in no time.

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 ...

Several companies offer an on-head spring compressor; we chose the TFS tool, but Comp Cams and Crane offer similar versions. See All 12 Photos.