Installing The Oil Pump Assembly; Installing The Balancer Assembly - Yamaha F150A Service Manual

1
Driver rod L3 "3": 90890-06652
Needle bearing attachment "4":
90890-06611
2. Install a new oil seal "1" into the oil pump
housing "2".
1
General pipe "3":
a = 45 mm (1.77 in)
3. Install the outer rotor "1", the inner rotor
"2", a new gasket "3", and the oil pump
cover "4", and then tighten the oil pump
cover screws "5" to the specified torque.
4. Install a new oil seal "6" so that it is facing
in the proper direction.
6
5
4
3
3
4
a
3
2
2
1
Oil pump cover screw "5":
4 N·m (0.4 kgf·m, 3.0 ft·lb)

Installing the oil pump assembly

2
1. Fill the oil pump assembly with engine oil
through the oil passage.
2. Install new O-rings "1" and the oil pump
assembly "2" by aligning the oil pump
gear with the crankshaft.
1
2

Installing the balancer assembly

1. Align the keyway "a" in the crankshaft
with the cylinder block and crankcase
mating surfaces (STBD) "b".
7-55
Cylinder block (F150A, FL150A)
1
a
b
0
1
2
3
4
5
6
7
8
9
10
A