Cleaning The Seawater (Raw Water) Section Of The Engine Oil, Power Steering, And Fuel Coolers - Mercury Racing Sterndrive 600SCi User Manual

Cleaning the Seawater (Raw Water) Section of the
Engine Oil, Power Steering, and Fuel Coolers
Avoid seawater entry into the boat. When cleaning engine oil or
power steering coolers with the boat in the water, be sure to close
off the water supply from the seawater pump to the cooler or
water may enter the boat when end plates or hoses are removed.
The seawater section of the oil cooler should be cleaned at least
once a year, or whenever decreased cooling efficiency is noticed.
ENGINE OIL COOLER
NOTE: The engine oil cooler is located on the top rear portion of
the engine.
1. Remove the end plates and gaskets.
a
a - End plates (2)
2. Clean the oil cooler with a suitable brush.
3. Flush the passages with fresh water.
4. Inspect the gaskets for deterioration and replace if necessary.
5. Install the gaskets and end plates. Tighten the screws
securely.
POWER STEERING COOLER
NOTE: The power steering cooler is located on the lower port side
of the engine.
1. Loosen the water hose clamps and remove the hoses to
inspect or clean the cooler.
MAINTENANCE
CAUTION
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