Mercury 25 EFI Service Manual page 163

3. Install the timing belt onto the crankshaft drive gear.
4. Install the timing belt onto the cam gear. Ensure the timing belt loose side is towards the starboard side (timing belt
tensioner side).
a
5. Install the tensioner and tensioner spring.
6. Rotate the crankshaft clockwise one belt tooth and tighten the tensioner bolt to the specified torque.
IMPORTANT: To ensure proper belt tension, the crankshaft must be rotated one belt tooth prior to tightening the belt
tensioner bolt. Failure to load the timing belt in a normal engine rotation will result in a improper belt tension.
a
Description
Timing belt tensioner bolt
7. Install the stator/CPS mounting plate to the engine.
8. Secure the stator/CPS mounting plate to the engine with three bolts. Tighten the bolts to the specified torque.
9. Install the lifting bracket to the engine block.
10. Secure the lifting bracket to the engine block with two bolts. Tighten the bolts to the specified torque.
a
Description
Bolts securing stator/CPS mounting plate (3)
Bolts securing lifting bracket (2)
90-8M0105568 eng MARCH 2016
b
a -
b -
9946
b
9934
b
c
Timing, Synchronizing and Adjustments
Timing belt tight side (port side of engine)
Timing belt loose side (starboard side of engine)
a - Timing belt tensioner bolt
b - Timing belt tensioner spring
a - Bolts securing stator/CPS mounting plate
b - CPS
c - Bolts securing lifting bracket
9931
© 2016 Mercury Marine
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Nm lb. in. lb. ft.
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