Check Valve

The check valve is a 1-way flow valve. It prevents exhaust manifold air from backing up through the system and reaching the air pump. The check valve will be found either in the tubing, leading to the injection manifold or as an integral part of the manifold.

Fig 1: Three Different Types of Air Injection Systems (V8) Air Injection Systems may vary according to equipment.

Fig 2: Jeep Timed & Vented By-pass Valve (Diverter Valve) Apply 8 in. Hg or more, to operate valve.