ServiceManual

SERVICE MANUAL MARINE ENGINES
03 FUEL SYSTEM
03.02.02 Disassembly and assembly of
unit injector
Preparation:
Remove camshaft housing cover.
Clean sealing surface of rubber seal
and check for hardening and damage.
Replace seal, if required.
02.02 ill.1
1 Turn crankshaft until injector cam is at base circle as
well intake and exhaust valve are open, in order to
permit a lateral shifting of rocker arm.
02.02 ill.2
02.02 ill.3
2 Before loosening flange nuts of unit injectors, ventilate
fuel system. For this purpose, open screw of
banjo fitting just enaugh to let air through seal rings
between fuel filter and fuel pump (ill.4/pos.1), and let
pump run approx. 6 times for 10 sec.
Make sure that air is sucked.
1
ATTENTION: Close fuel cock on tank, if tank is higher
than fuel supply on filter head.
02.02 ill.4
Z001019/0_7_July 2012 Page FUEL SYSTEM - 7