Preparation; Removal - MerCruiser 305 CID (5.0L) Service Manual

SERVICE MANUAL NUMBER 24

Preparation

DO NOT use an alignment tool from another manufacturer. Alignment tools other
than Quicksilver Alignment Tools (91-805475A1 or a properly modified 91-57797A3)
may cause improper alignment and damage to gimbal bearing and/or engine cou-
pler.
IMPORTANT: Sterndrive unit must be removed prior to engine removal. Refer to
Sterndrive Service Manual.

Removal

1. Disconnect battery cables from battery.
2. Remove instrument harness connector plug from engine harness receptacle after loos-
ening clamp.
Be careful when working on fuel system. Gasoline is extremely flammable and
highly explosive under certain conditions. Do not smoke or allow spark or open
flame in area. Wipe up any spilled fuel immediately.
3. Using wrench to stabilize brass filter nut at fuel inlet, loosen fuel line fitting, disconnect
and suitably plug fuel line to prevent fuel in tank from leaking into bilge.
4. Disconnect throttle cable from carburetor, or throttle body on fuel injection models, and
retain locknuts and hardware.
5. Disconnect bullet connectors of trim sender wires (coming from transom assembly) from
engine harness.
NOTE: After wires are disconnected be sure to loosen them from clamps or sta-straps
retaining them to engine or hoses.
6. Disconnect MerCathode wires from MerCathode controller if mounted on engine (some
models).
7. Disconnect seawater inlet hose from gimbal housing.
8. Disconnect exhaust elbow hoses (bellows).
9. Remove both shift cables from shift plate. Retain locknuts and hardware.
10. Disconnect any grounding wires and accessories that are connected to engine.
11. Disconnect (and suitably plug) fluid hoses from power steering control valve on transom.
Index
90-861327--1 OCTOBER 1999
CAUTION
WARNING
MCM MODELS
Page 2A-3