MerCruiser 3.0 MPI User Manual

Section 5 - Maintenance
Page 70 90-899883272 MARCH 2008
Sterndrive Unit and Transom Assembly
1. Lubricate gimbal bearing by applying approximately 8‑10 pumps of grease from a
typical hand‑operated grease gun.
mc77068-1
a
a - Gimbal bearing grease fitting
Tube Ref No. Description Where Used Part No.
42
U-joint and Gimbal Bearing
Grease
Gimbal bearing 92-802870A1
2. For propeller shaft lubrication, refer to Propellers.
Sterndrive U‑joint Shaft Splines and O‑rings (Sterndrive Unit Removed)
1. Coat sterndrive U‑joint O‑rings and driveshaft splines with grease.
a
b
17293
a - U‑joint O‑rings (3)
b - Driveshaft splines
Tube Ref No. Description Where Used Part No.
91
Engine Coupler Spline Grease
Driveshaft splines and U-joint
O-rings
92-802869A 1
2. For propeller shaft lubrication, refer to Propellers.
Engine Coupler
1. Lubricate engine coupler splines through grease fittings on coupler by applying
approximately 8‑10 pumps of grease from a typical hand‑operated grease gun.

MerCruiser 3.0 MPI Specifications

General

Horsepower	135 hp (101 kW)
Ignition	Electronic
Cylinders	4
Aspiration	Naturally Aspirated
Compression Ratio	9.3:1
Full Throttle RPM	4400-4800 RPM
Displacement	3.0L / 181 CID
Fuel System	Multi-Port Injection (MPI)
Bore x Stroke	4.00" x 3.60" (101.6mm x 91.4mm)
Fuel Requirement	87 Octane Minimum
Engine Type	Inline 4
Cooling System	Raw water
Alternator Output	65 amp