Oil Pump Installation - Mercury 25 EFI Service Manual

Oil Pump

Oil Pump Installation

1. Lubricate the new oil pump base seal with 2‑4‑C with PTFE, and install the seal onto the oil pump.
Tube Ref No.
2-4-C with PTFE
95
2. Pour 15 drops of 10W‑30 4‑Stroke Marine Engine Oil into the inlet and outlet of the oil pump.
3. Lubricate the cylinder head oil pump bore and the camshaft with 10W‑30 4‑Stroke Marine Engine Oil.
4. Ensure the oil pump keyway and the camshaft drive slot are in alignment when assembling the oil pump to the cylinder
head.
a - Oil pump inlet and outlet
b - Oil pump shaft keyway
Tube Ref No.
10W-30 4-Stroke Marine
110
Engine Oil
5. Secure the oil pump to the cylinder head with three bolts. Tighten the bolts to the specified torque.
Description
Oil pump bolt (3)
Page 4C-8
Description
a
b
Description
Inlet and outlet of the oil pump, cylinder head oil pump bore,
a
11499
© 2016 Mercury Marine
Where Used
Oil pump base seal
Where Used
camshaft
a - Oil pump bolt (3)
Part No.
92-802859A 1
11581
Part No.
92-8M0078625
Nm lb. in.
6 53
90-8M0105568 eng MARCH 2016
lb. ft.