A tool like Proform's new pneumatic valve spring compressor. Proform's new Pneumatic Valve Spring Compressor can cut cylinder head disassembly time in half. Pulling the tool's trigger supplies up to ...

We may receive a commission on purchases made from links. Most of us are familiar with gas-powered tools and electric power tools, but there is another kind of power tool — air powered. An air ...

Fittings such as these, for connecting a compressed air line to the spark plug hole for valve support, are available at most auto parts stores. Occasionally it is necessary or desirable to inspect or ...