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Oil Pressure Regulator Valve > < Engine Oil Pressure|Specifications
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Engine Oil Pressure: Testing and Inspection

LEFT CYLINDER HEAD DIAGNOSIS AND TESTING - CHECKING

ENGINE OIL PRESSURE 

1. Remove the oil pressure switch.
2. Install oil pressure test gauge assembly, Special Tools C-3292 with 8406 adaptor.
3. Start engine and monitor gauge readings.

CAUTION:  If oil pressure is 0 at idle, Do Not Run engine at 3000 RPM

4. Oil Pressure (engine at operating temperature):

Curb Idle ...........................................................................................................................................................................  34.5 kPa (5 psi) minimum
3000 rpm ........................................................................................................................................................................  300 - 724 kPa (45 - 105 psi)

5. If oil pressure is 0 at idle. Shut off engine, check for pressure relief valve stuck open or a clogged oil pickup screen.
6. Install oil pressure switch after testing is completed.

Oil Pressure Regulator Valve > < Engine Oil Pressure|Specifications