2. Troubleshooting Starting failure Insufficient Pccrex- 5 Hunting B Lubricating oil Cooling Air engine output haust color ‘5 0 water intake Trouble symptom e Exhaust smoke _m UJ Corrective action Cause Excessive cooling effect of radiator 0 0 0 Defective thermostat (kept closed) (See 3.9 (1) in Chapter 3.) Insufficient cooling effect of radiator 0 0 0 Defective thermostat (kept opened) (See 3.9 (1) in Chapter 3.) 01 slipping fan belt (See 3.4 in Chapter 3.) 6 insufficient cooling water level L % s Cracked water jacket 0 0 0 Check water leakage from cooling water system. 00 0 Repair or replace. F Slackened fan belt g Defective thermostat B 5 00 0 0 0 Adjust the belt tension.
(See 3.4 in Chapter 3.) 00 Check or replace. (See 3.9 (1) in Chapter 3.) Improper properties of lubricating oil 00 0 0 00 Use proper lubricating oil. (See 1.3 (2) in Chapter 1.) Leakage from lubricating oil piping system 0 0 Repair. E Insufficient delivery capacity of trochoid pump 0 Check and repair. (See 5.5 in Chapter 5.) S z Clogged lubricating oil fifter 00 Clean or replace. g Defective pressure regulating valve 0 Clean, adjust or replace. c 5 Insufficient lubricating oil level 0 Add proper lubricating oil. (See 3.1 in Chapter 3.) 0 0 & 3 Too early timing of fuel injection pump 000 0 Check and adjust.
(See 3.7 in Chapter 3.) Too late timing of fuel injection pump 0000 0 0 Check and adjust. (See 3.7 in Chapter 3.) Water entrance in fuel system 0 0 0 000 Perform draining from the fuel fifter. Improper properties of fuel oil 00000 0 Use proper fuel oil. (See 1.3 (1) in Chapter 1.) Clogged fuel filter 00 0 Clean or replace. 5 Clogged or cracked fuel pipe 00 0 Clean or replace. Air entrance in fuel system 00 0 Perform air bleeding. E Insufficient fuel supply to fuel injection pump 00 0 Check the fuel tank cock, fuel filter, fuel pipe, and fuel feet II pump. 5 2 Uneven injection volume of fuel injection pump 0000 0000 0 Check and adjust.
(See Chapter 7.) Poor spray pattern from fuel injection nozzle 0000 0000 0 Check and adjust. (See 3.6 in Chapter 3.) Excessive fuel injection volume 0 00 00 00 Check and adjust. (See Chapter 7.) Priming failure 0 Foreign matter trapped in the valve inside the priming pump. (Dis assemble and clean.) Clogged strainer at feed pump inlet 0 Clean the strainer. I I 2-2