Fuel Injection Nozzle Disassembly And Inspection - Yanmar 6LPA-STP2 Service Manual

Fuel Injection Nozzle
12/05
Fuel Injection Nozzle Disassembly
and Inspection
1. Remove the nozzle holder retaining nut to
disassemble the fuel injection nozzle
(Figure 6-18). Avoid dropping internal parts
when disassembling the nozzle.
Figure 6-18
Figure 6-18
2. Remove carbon deposits from the nozzle tip
(Figure 6-19, (1)) with a wooden stick.
Figure 6-19
(1)
Figure 6-19
6LPA Service Manual
3. NOTICE: Wash all parts with clean diesel fuel.
NEVER touch the nozzle mating surfaces with
bare hands. Remove carbon deposits from the
outside surface of nozzle body using a soft
brass brush, except the lapped surface
(Figure 6-20, (1)).
Figure 6-20
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4. Check the nozzle body seat and needle tip for
damage and corrosion. If damage or corrosion
is present, replace the nozzle assembly
(Figure 6-21).
Figure 6-21
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© 2007 Yanmar Marine International
FUEL SYSTEM
(1)
Figure 6-20
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Figure 6-21
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6-17