Komatsu — 16.6 OTHER TROUBLE

16.

TROUBLESHOOTING ENGINE (cont'd) (16.6.3) Problem Main causes Remedy Exhaust gas is white or blue Too much oil in oil pan Add oil to specified level, see CHECK BEFORE STARTING Improper fuel Change to specified fuel Exhaust gas occasionally turns Clogged air cleaner element Clean or replace, see WHEN black REQUIRED Defective nozzle (‡ Replace nozzle) Defective compression (‡ See defective compression above) Defective turbocharger Clean or replace turbocharger Combustion noise occasionally Defective nozzle (‡ Replace nozzle) makes breathing sound Abnormal noise generated Low grade fuel being used Change to specified fuel (combustion or mechanical) Overheating Refer to “Radiator water level monitor lights up” as above Damage inside muffler Replace muffler) Excessive valve clearance Adjust valve clearance) 2-107