STORAGE
SECTION 6
Page 92 CMD-3967823 / 90-865237030 OCTOBER 2003
CE499
Cold Weather Or Extended Storage
IMPORTANT: Cummins MerCruiser Diesel strongly recommends that this service
should be performed by an authorized Cummins MerCruiser Diesel dealer /
distributor. Damage caused by freezing IS NOT covered by the Mercury MerCruiser
Limited Warranty.
CAUTION
Seawater section of cooling system MUST BE COMPLETELY drained for winter
storage, or immediately after cold weather use, if the possibility of freezing
temperatures exist. Failure to comply may result in trapped water causing freeze
and/or corrosion damage to engine. Damage caused by freezing is NOT covered by
the Cummins MerCruiser Diesel Limited Warranty.
IMPORTANT: Cummins MerCruiser Diesel recommends that propylene glycol
antifreeze (a nontoxic and environmentally safe) antifreeze be used in the seawater
section of the cooling system for cold weather or extended storage. Ensure that the
propylene glycol antifreeze contains a rust inhibitor and is recommended for use in
marine engines. Follow the propylene glycol manufacturer’s recommendations.
CE501
Preparing Your Power Package For Storage
IMPORTANT: If the boat has already been removed from the water, before starting the
engine a source of water must be supplied to the seawater pump inlet. Follow all
warnings and flushing attachment procedures stated in SECTION 5 - Flushing The
Seawater System.
CAUTION
Overheating from insufficient cooling water will cause engine and drive system
damage. Ensure that there is sufficient water always available at water inlet
openings during operation.
1. Supply cooling water to the seawater pump inlet.
2. Start the engine and operate until it reaches normal operating temperature.
3. Stop the engine.
4. Change the engine oil and oil filter.
5. Start the engine and operate for about 15 minutes. Check for oil leaks.
6. Flush the seawater cooling system. Refer to Section 5 - Flushing The Seawater
System procedure shown earlier in this manual.
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