PURSUIT 3070 EXPRESS Owner's Manual download pdf (Page 20)

3070 EXPRESS

1.2 Drive System Corrosion

Each outboard motor is a complete drive system with the gear case being just forward of the

propeller and connected to the power head with a vertical drive shaft. Other than the routine

maintenance outlined in the engine owner’s manual, there is little to be concerned with unless

the boat is to be kept in saltwater for extended periods of time. Then the main concerns are marine

growth and galvanic corrosion.

Marine growth occurs when components are left in the water for extended periods and can cause

poor performance or permanent damage to the exposed components. The type of growth and how

quickly it occurs is relative to the water conditions in your boating area. Water temperature,

pollution, current, etc. can have an effect on marine growth.

Galvanic corrosion is the corrosion process occurring when different metals are submerged in

an electrolyte. Sea water is an electrolyte and submerged engine components must be properly

protected. Outboard motors are equipped with sacrificial anodes to prevent galvanic corrosion

problems. The anodes must be monitored and replaced as necessary. For locations and

maintenance, please refer to the engine owner’s manual.

When leaving the boat in the water, tilt the motors as high as possible. This will decrease the

risk of marine growth around the cooling inlets, propeller and exhaust ports and damage from

galvanic corrosion.

DO NOT PAINT THE OUTBOARD MOTORS WITH ANTIFOULING PAINTS DE-

SIGNED FOR BOAT HULLS. MANY OF THESE PAINTS CAN CAUSE SEVERE DAM-

AGE TO THE ENGINES. CONTACT YOUR PURSUIT DEALER OR ENGINE MANU-

FACTURER FOR INFORMATION ON THE PROPER PAINTING PROCEDURES.

1.3 Engine Lubrication

2-cycle outboard motors are lubricated by a variable ratio oil injection system. The oil tanks are

mounted below the stern bait station near the transom. Always monitor the oil level before each

cruise by checking the gauge in the helm or visually checking the oil level using the reference

marks on the tanks. When additional oil is needed, use only the type of oil specified by the engine

manufacturer. Refer to the engine owner’s manual for oil specifications and additional

information on the oil injection system.

4-cycle outboard engines have an oil sump in the crankcase that must be kept full of the type and

grade of oil recommended by the engine manufacturer. It is normal for 4-cycle engines to

consume a small amount of oil. Therefore, the oil must be checked before each use and changed

at regular intervals as instructed by the engine owner's manual. As with 2-cycle engines, use only

the type of oil specified by the engine manufacturer.

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PURSUIT 3070 EXPRESS Owner's Manual Page 20