3.
Tr
ou
bleshooting
52
Trouble and Troubleshooting
TROUBLE AND TROUBLESHOOTING
Countermeasure
Chart 3
POOR EXHAUST COLOR
(I-1) Check, repair or replace.
(I-2) Replace.
(I-3) Check, repair or replace.
(I-4) Adjust.
(I-5) Adjust.
(II-1) Clean.
(II-2) Check, repair or replace.
(II-3) Adjust.
(II-4) Check, repair or replace.
(II-5) Clean.
POOR
EXHAUST
COLOR
(2) Damaged valve
spring
(3) Insufficient injection
pressure in injection
valves
(II) Faulty fuel injection valve
(4) Irregular injection timing
(5) Sticking of injection valves
Cause and Ef
fect
Countermeasure
Cause and Ef
fect
Countermeasure
(II-1) Check and repair.
(II-2) Replace.
(II-3) Adjust.
(II-4) Adjust.
(II-5) Clean.
(5) Damaged exhaust union packing
(6) Loose pinion screw
(7) Faulty fuel injection
pump tappet
CYLINDER OUTPUT
IS UNEVEN
(1) Oil leakage in injection
system
(I) Uneven quantity of fuel oil injected
Countermeasure
CYLINDER OUTPUT IS UNEVEN COUNTERMEASURE
Chart 2
(I-1) Bleed air.
(I-2) Disassemble and clean.
(I-3) Replace.
(I-4) Repair or replace.
(I-5) Replace.
(I-6) Tighten firmly.
(I -7) Disassemble and clean
and repair replace.
(1) Air in the fuel injection pump
(I) Faulty fuel injection pump
(III-1) Clean.
(IV-1) Reduce load.
(IV-2) Adjust quantity of oil.
(IV-3) Clean.
(IV-4) Clean.
(IV-5) Reduce. with new oil.
(IV-6) Clean.
(III) Clogged intake air filter
(IV) Miscellaneous
(1) Overloading
(4) Dirty air cooler
(5) Poor quality fuel oil
(1) Clogged filter
(II) Faulty fuel injection valve
(3) Faulty ejection valve
(1) Faulty plunger operation
(1) Injection opening is clogged
(2) Worn plunger
(2) Sticking of valve needle
(5) Carbon deposit
(4) Faulty spry condition
(3) Low injection pressure
(4) Uneven quantity of fuel injected
(5) Irregular fuel injection timing
(2) Faulty operation of plunger
(3) Damaged plunger spring
(4) Faulty fuel oil ejection valve
(2) Too great a quantity of lube oil
(3) Carbon deposit in suction valves
(6) Clogging in exhaust system Cause
Содержание 3YM20
Страница 1: ...M9961 03E100 ...
Страница 41: ...2 Inspection and adjustment 26 Cylinder head Bracket Fuel filter Fuel pipe Fuel injection pump Clamp Fuel pipe ...
Страница 154: ...6 Fuel injection equipment 139 6 1 3 Fuel injection pump structure Section of a fuel injection pump governor for 3YM30 ...