MAINTENANCE
SERVICE MANUAL NUMBER 28
90-863160 MAY 2000 Page 1B-13
IMPORTANT: If anti-fouling protection is required for boat hull or boat transom, cop-
per or tin base paints, if not prohibited by law, can be used. If using copper or tin
based anti-fouling paints, observe the following:
• Avoid an electrical interconnection between the Mercury MerCruiser Product,
Anodic Blocks, or MerCathode System and the paint by allowing a minimum of
1-1/2 in. (40 mm) UNPAINTED area on transom of the boat around these items.
71176
a
b
a-Painted Boat Transom
b-Minimum 1-1/2 in (40 mm) UNPAINTED Area Around Transom Assembly
NOTE: Sterndrive unit and transom assembly can be painted with a good quality marine
paint or an anti-fouling paint that DOES NOT
contain copper, tin, or any other material that
could conduct electrical current. Do not paint drain holes, anodes, MerCathode system and
items specified by boat manufacturer.
Maintaining Ground Circuit Continuity
The transom assembly and sterndrive unit are equipped with a ground wire circuit to ensure
good electrical continuity between engine, transom assembly and sterndrive components.
Good continuity is essential for the MerCathode System to function effectively. Refer to
SECTION 7.
Power Package Layup
Engine
Refer to appropriate Engine Service Manual.
Sterndrive
1. Lubricate steering system. Refer to SECTION 6.
2. Lubricate transom gimbal bearing and propeller shaft. Refer to SECTION 4 and
SECTION 1B.
3. Lubricate sterndrive unit U-joint shaft splines and cross bearings. Refer to SECTION 3A.
4. Inspect U-joint bellows for cracks or other signs of deterioration. Check bellows clamps
for tightness. Refer to SECTION 4.
5. Check engine alignment. Refer to Engine Service Manual.
6. Change sterndrive unit oil. Refer to SECTION 1B.
7. Inspect sterndrive for damage. Repair or replace damaged components.
8. Clean sterndrive exterior surfaces and repaint any bare metal surfaces with Quicksilver
Primer and Spray Paint. Refer to SECTION 1B.
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