Engine Lubrication: Testing and Inspection
ENGINE OIL PRESSURE TESTWARNING:
^ USE SUITABLE EXHAUST EXTRACTION EQUIPMENT, IF TEST IS BEING CARRIED OUT IN WORKSHOP.
^ IF VEHICLE HAS BEEN RUNNING, ENGINE OIL WILL BE HOT, CARE MUST BE TAKEN WHEN FITTING EQUIPMENT TO PREVENT PERSONAL INJURY DUE TO SCALDING
1. Check lubricant is to correct level.
2. Place vehicle on a hoist.
3. Disconnect the battery negative lead. Remove oil pressure switch.
4. Install the test gauge.
5. Reconnect the battery negative lead.
6. Start and run engine to normal operating temperature.
7. At a steady engine speed of 2400 rpm the engine oil pressure reading should be 2.11 to 2.81 kg/cm2 (30-40 psi).
8. If there is no oil pressure check for air lock in system.
9. If the pressure is low - Remove and overhaul oil pump.
NOTE: Excessive lubrication pressure can effect engine performance by over pressurizing the hydraulic tappets causing the valves to be held open.