Assembling The Oil Pump - APRILIA M192M Workshop Manual

ENGINE
3.3.8.

ASSEMBLING THE OIL PUMP

•
Check the pump body-shaft for wear.
•
Check that pump cover is not worn or scored.
•
In case of excessive wear or scores, change the dam-
aged parts or the whole unit.
•
Fit the pump cover so as to align the holes of the at-
tachment screws.
TIGHTENING TORQUE VALUES
Pump cover screws: 0.7 ÷ 0.9 Nm.
• Make sure that gasket is correctly positioned and refit
pump to crankcase. Pump can be positioned in one
way only. Tighten screws to the specified torque.
TIGHTENING TORQUE VALUES
Pump retaining screws: 5 ÷ 6 Nm.
•
Fit washer and sprocket with a new O-ring.
•
Fit chain in the turning direction indicated when disas-
sembling.
•
Fit pulley, Belleville washer and center screw. Tighten
to the specified torque.
TIGHTENING TORQUE VALUES
Pulley screw: 10 ÷ 14 Nm
NOTE Fit the Belleville washer, with its outer edge resting
against the pulley. Check that pump turns freely.
•
To refit the pump cover guard, tighten the two screws
to the specified torque.
TIGHTENING TORQUE VALUES
Cover guard screws: 0.7 ÷ 0.9 Nm
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Engines M192M / M191M / M245M / M234M / M282M / M281M