Assembling The Crankshaft - Yamaha EF2000iS Manual De Servicio

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PISTON, CONNECTING ROD, CRANKSHAFT AND
1
a
90˚
a
45˚
d
90˚
a
b
a
b
3
b
2
b
90˚
c
1
3-42
CRANKCASE
3. Install:
9 Piston 1
9 Piston pin 2
9 Piston pin circlip 3
TIP
9 Make sure that the "FWM" mark a on the
connecting rod faces as shown.
9 Make sure that the " " mark b on the piston
head faces toward the push rod.

ASSEMBLING THE CRANKSHAFT

1. Make sure that the end gap of each piston
ring is positioned, as shown in the illustra-
tion.
a Top ring
b Upper oil ring rail
c Second ring
d Lower oil ring rail
2. Install:
9 Piston already assembled to connect-
ing rod 1
TIP
9
Make sure that the
piston head faces toward the push rod.
Make sure that the "PTO" mark b on the
9
connecting rod faces toward the crank-
case cover.
3. Install:
9 Crankshaft
9 Connecting rod cap
9 Nm (0.9 m · kgf, 6.6 ft · lbf)
TIP
Make sure that the " " mark a on the con-
necting rod is aligned with the " " mark b on
the rod cap.
4. Install:
9 Camshaft
9 Crankcase cover
Refer to "CRANKCASE COVER AND
CAMSHAFT".
ENG
mark a on the
" "

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