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 ...

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, ...

If you're driving around in an STI, Evo or SR20-swapped 240, or perhaps you've thought about turbocharging your Civic or Z, you're going to want to invest in a good blowoff valve. The underlying ...