External Air Pressure

An adapter with an air fitting can be made to fit into PCV hole of the rocker arm cover or dipstick hole. This can be attached to an air supply that is regulated at 2 to 3 psi. Extreme caution should be used to assure that air pressure does not exceed 3 psi. Leaks could be created if air pressure exceeds 3 psi. The air cleaner pipe to rocker arm cover hole must be plugged. With air being forced into
the crankcase, the oil will be pushed to the source of the oil leak, where it can be detected with the black light. If a black light is not being used, sometimes spraying the suspected area with soapy water will confirm the leak. Test can be performed with or without the engine running.