Diagnosis And Remedy; Engine Starting Impossible - Daewoo DE12T Manual

2.21. Diagnosis and Remedy

•
The following description summarizes the probable cause of and remedy for general failure by
item.
•
Immediate countermeasures should be taken before a failure is inflamed if any symptom is detected.
Starting motor operation poor
Inspection of battery electorlytic
Iiquid amount & gravity
Normal Too low
Adjustment
Recharging
Inspection of loose electric
wring & short
Retighten
Normal
Replace
Inspection of starting switch
Repair
Normal
Replace
Inspection of starting relay
Normal
Replace
Inspection of magentic switch
Repair
Normal
Replace
Starting motor
disassembly
Normal
Injection pump
dasassembly

1. Engine Starting Impossible

Engine
Inspect air cleaner
Normal
Replace or
clean element
Check compression
pressure
Normal
Inspect of
other parts
Normal
Check cylinder
head gasket
Normal
Engine disassembly
(valve assembly piston
cylinder liner etc.)
Inspect supply pump operation
Inspect supply pump valve strainer
Clean
Normal
Replace
Inspect fuel filter
Element polluted
Overflow valve poor
Replace
- 37 -
Starting motor revolution
Polluted
Too low
Repair
Replace
Check valve
clearance
Adjust
Replace
Fuel
Inspect amount of fuel
Normal
None
Replenish
Inspect fuel
injection
No injection
Normal
Continuous
operation after
air removal
Inspect
injection
timing
Adjust
Normal
Inspect injection
nozzle (injection
pressure, injection
state etc.)
Repair
Normal
Replace
Injection pump
disassembly
Air mixture in fuel
Retighten connection
parts. Replace gasket
Air removal
Continuous air mixing
Supply pump
disassembly
TECHNICAL INFORMATION