Fuel Injection Valve (Nozzle) - Yanmar YSE8 Service Manual

Reassembly
1)
Tighten the plunger assembly.
Check that the plunger moves lightly while
tightening it gmduauy by use of an offset
2 l
4 l
Place the spring and the spritrg washer.
Attach the pump bodj' to the engine.
Tighten the regulator, with the regulator body turned counter-clockwise to the
degree within which it does not come off. Check that the regulator spindle moves
lightly.
5)
Tighten the delivery valve.
Note: This completes the reassembly; however, air venting of fuel injection pump and
adjustment of governor lever are still necessary for engne start-up.
8.1.2 Fuel iniection valve {nozzle)
A
o#
6
e-
-€
ff
n
E
UJ
r-l
I
r-
DiBaBsembly
1) Detach the fuel iujection valve.
2) Remove the fuel injection valve lock nut.
3) Remove the nozzle valve assembly,
If it is difficult to take out the nozzle body,
drive it out by hammering the pipe (Bee fig. ).
Do not strike with a dliver or the like, for the
valve tip might be damaged.
Foel varve spring horder
Fuelv6lv€ spnng horde. Pa.k'ng
Nozzle sprin9 adju{'ng plate
a