V 8 ENGINE IB 7 Sorvlua Illaqnnsls Continued Condition Possible Cause Correction LOW OIL PRESSURE 5 Oil pickup tube and screen 5 Remove and inspect oil pickup cfmlilnued assembly has restriction or tube and screen assembly Fill air leak pickup with lacquer thinner to find leaks 6 Oil pump malfunctioning 6 Inspect and check clearances Refer to Oil Pump 7 Excessive main rod or camshaft 7 Measure bearing clearances bearing clearance repair as necessary HIGH OIL PRESSURE 1 Improper grade oil 1 Drain and refill crankcase with correct grade oil 2 Oil pressure gauge or sending 2 Refer to Section 3 Oil Pressure unit inaccurate Gauge and Sending Unit Test 3 Oil pressure relief valve sticking 3 Remove and inspect oil pressure closed relief valve assembly 4 Pressure relief passage or anti 4 Check for restriction in a nti lock lock port restricted port and repair as necessary MAIN BEARING 1 Insufficient oil supply 1 Check for low oil level or low NOISE oil pressure 2 Main bearing clearance excessive 2 Check main bearing clearance repair as necessary Make certain all upper inserts are installed 3 Crankshaft end play excessive 3 Check end play repair as necessary 4 Loose flywheel or torque 4 Tighten flywheel or converter converter attaching bolts 5 Loose or damaged vibration 5 Repair as necessary damper CONNECTING ROD 1 Insufficient oil supply 1 Check for low oil level or low BEARING NOISE oil pressure 2 Bearing clearance excessive or 2 Check clearance repair as bearing missing necessary 3 Crankshaft connecting rod 3 Check journal measurements journal out of round repair or replace as necessary 4 Misaligned connecting rod 4 Repair as necessary 5 Connecting rod bolts not tight 5 Tighten bolts to specified torque ened to proper torque