Connect the pressure test gauge to the transmitter fitting in the valley of the block. Pressure should be a minimum of 6 psi (41 kPa) at hot idle and increase to 30 psi (207 kPa) at 2000 rpm.
Low pressures at both test ranges with correct oil level indicate:
– Pump pickup strainer or tube loose
– Pump pressure relief valve or spring problem
– Pump gears worn, chipped
– Pump shaft worn, slipping
– Oil galley plug loose, missing
– Main bearings severely worn
– Cam bearing turned (spun) or misaligned
