Marine Power 4.3 VORTEC MPI User Manual

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12. Trouble Shooting
Engine Starts and Stops
Possible Cause Remedy
Insufficient Fuel Supply Approximately 60 PSI. Fuel Pressure Must Be Adequate at Wide Open Throttle at Full Load
Loss of Ignition Power Check Ignition Switch, Main Engine Breaker, Engine Harness Connection
Oil Pressure - Low
Possible Cause Remedy
Low Oil Level in Crankcase Refer to Section13: Engine Identification on Page 15
Excessive Oil in Crankcase Remove Excess Oil. Refer to Section 13: Engine Identification on Page 15 for Correct Oil Level
Erroneous Oil Gauge Readings Contact Dealer to Perform a Mechanical Oil Pressure Check
Incorrect Dipstick See Dealer
Incorrect Oil Viscosity or Diluted Change to Proper Oil
Oil Pump Malfunctioning See Dealer
Excessive Bearing Clearance See Dealer
Low Oil Pressure Will Set a Trouble Code and Will Reduce Engine RPM.
Oil Pressure as Low as of 5 lbs. at Idle is Acceptable. At 2000 RPM 30 lbs. is Acceptable.
Oil Pressure - High
Possible Cause Remedy
Oil Too Thick - Wrong Viscosity Change to Proper Oil
Erroneous Oil Gauge Readings Contact Dealer to Perform a Mechanical Oil Pressure Check
Clogged or Restricted Oil Passage See Dealer
Oil Valve Relief Valve Stuck Closed See Dealer

Marine Power 4.3 VORTEC MPI Specifications

General

Brand	Marine Power
Model	4.3 VORTEC MPI
Category	Engine
Language	English