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 ...

Come in for more info... 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 ...

Even though compressor manufacturers are reducing the amount of clearance volume found between the valve plate and piston head, some clearance will always remain. The clearance volume gas pressure is ...