Honda BF135A Manual page 425

d. ASSEMBLY
1) Apply thread locking agent to the threads of the 18 mm
sealing bolt.
2) Check the relief valve surface for scores, scratches and
other damage. Apply engine oil to the relief valve and the
relief valve spring.
3) Install the relief valve and the relief valve spring in the oil
pump body, and tighten the 18 mm sealing bolt to the
specified torque.
TORQUE: 39 N . m (4.0 kgf . m, 29 lbf . ft)
4) Clean the inner rotor and the outer rotor thoroughly. Apply
engine oil to the inner and outer rotors and install them on
the oil pump body.
Note to install the rotors in the same direction as the
direction of the rotors noted on disassembly.
5) Install the two dowel pins and the oil pump cover on the oil
pump body and tighten the nine 6 x 16 mm flat screws.
Check that the rotors move smoothly.
11-10
[4]
[3]
RELIEF
RELIEF VALVE
VALVE
SPRING
[1]
OIL PUMP
BODY
[1]
OIL PUMP
COVER
[4]
5 x 8 mm
DOWEL PIN (2)
[1]
OIL PUMP BODY
[2]
18 mm SEALING
BOLT
[2]
INNER ROTOR
[3]
OUTER ROTOR
[2] 6 x 16 mm FLAT
SCREW (9)
[3]
OIL PUMP
BODY