TROUBLESHOOTING
70
11.3 Poor engine performance and/or black smoke
Dirty engine
Dirty air filter.
Excessive oil carbon deposits on
piston and cylinder head.
Clean / renew filter.
Decoke components / change vent
valve.
General Engine Condition
Worn piston rings.
Worn piston and cylinder.
Worn bearing.
Renew rings / check air filter.
Overhaul engine.
Overhaul engine.
11.4 Imperfect operating behaviour
Overheating
Engine overloaded.
Cooling fins dirty.
Cool air intake obstructed.
Short circuit of cooling air.
Oil level in crankcase is too high.
Faulty injector nozzle.
Reduce load.
Clean cooling fins.
Remove obstruction.
Improve cooling air flow (check
engine installation).
Drain to proper level.
Check / repair / renew nozzle.
Knocking Noises
Oil carbon deposits on piston.
Injector needle sticking.
Advanced ignition.
Broken piston rings.
Worn piston and cylinder.
Worn bearings.
Loose flywheel.
Gasoline mixture in tank.
Decoke.
Fit new nozzle.
Check/adjust end of delivery.
Fit new rings.
Overhaul engine.
Overhaul engine.
Tighten flywheel nut.
Change fuel.
Major fluctuations in speed
(RPMs)
Overheating.
Air in fuel.
Governor sticking or faulty.
Fuel filter choked.
Regulating lever sticking or faulty.
See above.
Check the fuel system for leaks /
check the return line.
Check / repair / renew governor.
Renew filter.
Check / renew.
Engine stops suddenly.
Empty fuel tank.
Vent valve in tank cap is blocked.
Vapor lock (fuel too hot).
Choked injection nozzle.
Fill with fuel.
Renew tank cap.
Cool fuel.
Check / repair / renew nozzle.
Summary of Contents for 37E
Page 1: ......
Page 2: ...2 ...
Page 18: ...SPECIAL TOOLS 18 748 131 5 Valve spring lifter to remove and fit the valve springs ...
Page 38: ...MEASUREMENT TABLES WEARING PARTS 38 6 Measurement Tables Wearing Parts ...
Page 39: ...MEASUREMENT TABLES WEARING PARTS 39 ...
Page 40: ...MEASUREMENT TABLES WEARING PARTS 40 ...
Page 41: ...MEASUREMENT TABLES WEARING PARTS 41 Comparison of 43E 43F Camshafts ...
Page 42: ...MEASUREMENT TABLES WEARING PARTS 42 ...
Page 43: ...MEASUREMENT TABLES WEARING PARTS 43 ...
Page 44: ...MEASUREMENT TABLES WEARING PARTS 44 ...
Page 45: ...MEASUREMENT TABLES WEARING PARTS 45 ...
Page 46: ...MEASUREMENT TABLES WEARING PARTS 46 ...
Page 47: ...MEASUREMENT TABLES WEARING PARTS 47 ...
Page 48: ...MEASUREMENT TABLES WEARING PARTS 48 ...
Page 49: ...MEASUREMENT TABLES WEARING PARTS 49 ...
Page 50: ...MEASUREMENT TABLES WEARING PARTS 50 ...
Page 62: ...ELECTRICAL SYSTEM 62 10 3 Wiring Diagrams ...
Page 63: ...ELECTRICAL SYSTEM 63 ...
Page 64: ...ELECTRICAL SYSTEM 64 ...
Page 65: ...ELECTRICAL SYSTEM 65 ...
Page 66: ...ELECTRICAL SYSTEM 66 ...
Page 67: ...ELECTRICAL SYSTEM 67 ...
Page 72: ...NOTES 72 ...
Page 73: ...NOTES 73 ...