This document introduces the steps for vacuum testing and fuel pressure testing, and provides the corresponding parts list.
The document outlines specific steps for running engine tests to verify mechanical soundness by checking manifold vacuum readings. It also details a procedure for testing the Positive Crankcase Ventilation (PCV) valve system to ensure proper crankcase ventilation function.
Additionally, the guide includes safety warnings and step-by-step instructions for fuel pressure testing on carbureted or low-pressure TBI systems. A parts list is provided at the end identifying components included in the kit.
A steady reading between 15 and 22 inches indicates a mechanically sound engine.
A good PCV system will draw a vacuum of 3 to 5 inches within 10 seconds.
On a good fuel pump, the pressure will range from 4 to 6 psi.