Probable Cause: 1. Restriction To Air Flow Through Radiator Or Restriction To Flow Of Coolant Through The Heat Exchanger Remove all restrictions of flow. 2.…

Probable Cause: 1. Defect In Oil Pressure Gauge Install new gauge. 2. Dirty Oil Filter Or Oil Cooler Check the operation of bypass valve for…

Probable Cause: 1. Too Much Lubrication Oil In Engine Remove extra oil. Find where extra oil comes from. Put correct amount of oil in engine…

Probable Cause: 1. Not Enough Air For Combustion Check air cleaner for restrictions [Max. 635 mm (25 in) of water]. 2. Defective Fuel Injection Nozzle(s)…

Probable Cause: 1. Failure Of Oil Cooler Core Install a new core for the oil cooler. 2. Failure Of Cylinder Head Gasket Install a new…

Probable Cause 1. Too Much Oil In The Valve Compartment Look at both ends of the rocker arm shaft. Be sure that there is a…

Probable Cause: 1. Broken Locks Broken locks can cause the valve to slide into the cylinder. This will cause much damage. 2. Broken Valve Spring(s)…

Probable Cause: 1. Not Enough Lubrication Check lubrication in valve compartment. There must be a strong flow of oil at high engine rpm, but only…

Probable Cause: 1. Broken Valve Spring(s) Make replacement of parts with damage. 2. Broken Camshaft Make replacement of parts with damage. Clean engine thoroughly. 3.…

Probable Cause: 1. Fuel System Leaks Replacement of parts is needed at points of leakage. 2. Defect In Timing Advance Unit Replacement of timing advance…