MCM MODELS - BRAVO AND BLACKHAWK DRIVES WITH DRIVESHAFT EXTENSION
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999 Page 2B-3
Preparation
IMPORTANT: It is not necessary to remove the engine to service the drive shaft and/or
bearing support (tailstock). Refer to instructions as outlined in SECTION 8F “Drive
Shaft Repair” or “Bearing Support Repair,” for servicing these items only.
IMPORTANT: Sterndrive unit does not have to be removed prior to engine removal.
If sterndrive is going to be removed, refer to appropriate Sterndrive Service Manual.
1. Disconnect battery cables from battery.
2. Remove instrument harness connector plug from engine harness receptacle after
loosening clamp.
3. Disconnect throttle cable from throttle body. Retain locknuts and hardware.
4. Using wrench to stabilize brass coupling at water separating fuel filter inlet, loosen fuel
line fitting, disconnect and suitably plug fuel line to prevent fuel in tank from leaking into
bilge.
5. Disconnect any grounding wires and accessories that are connected to engine.
6. Disconnect (and suitably plug) fluid hoses from power steering control valve on transom.
7. Remove top and then bottom drive shaft shields at engine end of extension drive shaft.
72033
a
c
d
b
a-Top Shield
b-Bottom Shield
c-4 Bolts / Nuts (2 Hidden)
d-3 Screws (Hidden)
8. Mark extension drive shaft U-joint yoke/output flange connections at engine end (to
assist in exact same positioning during reassembly). Disconnect drive shaft from output
flange.
70237
b
a
c
Engine End Shown
a-Matching Parts On Flange And Drive Shaft Connection
b-Extension Drive Shaft U-Joint Yoke
c-Output Flange
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