Service manual

FUEL INJECTION NOZZLE
Disassembly
Note: Keep all parts in order by cylinder during
disassembly and reinstall all small parts
to their mating part as the components
as components are matched.
1. Mount the hole type injection nozzle into the
YANMAR special fuel nozzle mount plate
PIN
158090-51 700 (Figure 7-4, (2). Carefully
mount the holder and nozzle in to a vise
(Figure 7-4, (3) to ensure the high pressure
mounting threads are not damaged.
2. Use a socket wrench (Figure 7-4, (1)) to
remove the nozzle nut.
0001330
Figure 7-4
3. Remove all nozzle components including the
spring seat and shims.
0002093D
Fuel Return Passage
Injector Body
Pressure Adjusting Shims
Spring
Spring Seat
Valve Stop Spacer
Nozzle Valve
Nozzle Body
Nozzle Case Nut
Figure 7-5
MP Series Service Manual YANMAR.