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Cosmetic Care & Maintenance
MerCruiser-Checking Engine Coolant
AVOID PERSONAL INJURY AND PROPERTY
DAMAGE! A SUDDEN LOSS OF PRESSURE
COULD CAUSE VERY HOT COOLANT
TO BOIL AND VIOLENTLY DISCHARGE.
AFTER THE ENGINE HAS COOLED,
TURN THE CAP 1/4 OF A TURN WITH A RAG
WRAPPED AROUND THE CAP TO ALLOW
PRESSURE TO ESCAPE SLOWLY.
THEN PUSH THE CAP DOWN COMPLETELY
AND TURN CAP COUNTERCLOCKWISE
TO REMOVE.
!
Heat Exchanger Cap
1. Remove the heat exchanger and visually inspect the
coolant level.
2. The coolant level in the heat exchanger should be at
the bottomof the filler neck. If coolant is low contact an
authorized MerCruiser dealer.
3. When reinstalling the pressure cap turn it completely
clockwise making sure it seats on the filler neck.
4. With the engine at normal idle speed, check the coolant
level in the recovery bottle. See the illustration.
1. The coolant level must be between the “add” and “full”
marks.
2. If coolant needed, use MerCruiser Extended Life
Antifreeze/Coolant.
3. Add coolant only when the engine is at normal operating
temperature.
4. Remove the filler cap from the recovery bottle.
5. Fill to the “FULL” line with MerCruiser Extended Life
Antifreeze/Coolant.
6. Install the filler cap.
7. To change the coolant contact an authorized
MerCruiser dealer.
Note: Do not use alcohol or methanol based
antifreeze or clear water in the system at anytime.
Filler Cap
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