Z001019/0_6_July 2008
Page FUEL SYSTEM - 7
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.
1
Turn crankshaft unt
i
l
i
nj
ector cam i
s at base circl
e as
wel
l
i
ntake and exhaust val
ve are open,
i
n order to
perm i
t
a l
ateral
shifting of rocker arm .
2
Before l
ooseni
ng flange nuts of uni
t
i
nj
ectors, vent
i
l
ate
fuel
system . For thi
s purpose, open screw of banj
o
fitting j
ust enaugh to l
et air through seal rings between
fuel filter and fuel
pum p (ill.4/pos.1), and l
et pum p run
approx. 6 tim es for 10 sec.
M ake sure that air is sucked.
ATTENTION:
Close fuel cock on tank, if tank is
higher than fuel supply on filter head.
02.02 ill.3
02.02 ill.2
02.02 ill.1
1
02.02 ill.4
ToC