Diesel Engine (Air-Cooled) - ENAR CRENA 22 Manuel D'instructions

Incorrect operation of the reverse travel starter

9.2 DIESEL ENGINE (AIR-COOLED)

Faulty startup:
REVERSIBLE VIBRATORY PLATE COMPACTOR
•
Vibrator full of excess oil
- Motor overheating
•
Carbon deposits in the combustion chamber or in the exhaust port
•
Incorrect calorific value of the igniter plug
•
Cooling fins dirty
- Rotation speed fluctuates
•
Incorrect setting
•
Incorrect adjusting spring
•
Inadequate flow of fuel
•
Air penetrating the intake manifold
- Dust adhering to the rotating part
- Fault in the helical spring
A.- Incorrect compaction
•
Zero compaction
➢
Faulty suction or exhaust valve
➢
Incorrect adjustment of the decompression system
•
Hardly any or very low compression
➢
Faulty contact of valve seat
➢
Piston ring is worn
➢
Cylinder is worn
➢
Incorrect surface adjustment of cylinder or cylinder head
➢
Loose injector seat
B.- Fuel not injected correctly in combustion chamber
•
Insufficient or zero flow of fuel
➢
Air vent in cover of tank is blocked
➢
Fuel filter is blocked up and filter screen is blocked
➢
Fuel filter spigot closed
➢
Air retained in fuel pipe (particularly when the tank is empty)
•
No fuel is injected into the combustion chamber
➢
Cylinder of the injection pump or piston is stuck
➢
Injector is blocked
➢
Injector needle is stuck
•
Fuel tank empty
•
Water or dust have got inside
C.- Combustion and compression system, etc are normal, but it won't start
•
Fails to reach startup speed
➢
Incorrect startup procedure
➢
High viscosity or excessive contamination of engine oil
➢
Air retained in fuel pipe
CRENA 52*, 63*
en
29