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6 – 10 TROUBLESHOOTING
Checkpoint Trouble Cause Countermeasure Injection pump Defective governor lever operation Repair or replace the governor lever Regulator valve improperly adjusted Adjust or replace the regulator valve Broken plunger spring Replace the plunger spring Worn plunger Replace the plunger assembly Worn cam disc Replace the cam disc Valve clearance improperly adjusted Adjust the valve clearance Blown out cylinder head gasket Worn cylinder liner Piston ring sticking or broken Improper seating between the valve and the valve seat Replace the related parts OK OK NG NG NG NG NG NG NG Continued from the previous page Valve clearance Compression pressure |