Craftsman Marine — Winter storage
Maintenance · Engine
From a Craftsman Marine owner's manual covering: CM 2.16, CM 3.27, CM3.27. Check it applies to your exact model before use.
Applies to: Craftsman Marine CM 2.16, Craftsman Marine CM 3.27
Before you start
- With this mixture: idling revolutions only, no revving up allowed!
- Anti-freeze liquid is very poisonous! Make sure anti-freeze is not getting mixed up with raw water.
- Make sure the cover of the raw water strainer tightens well to avoid false air and overheating.
Procedure
- Run the engine for some 10 minutes with a protective mixture of 10% lubrication oil and 90% clean diesel fuel.
- Replace the oil filter and change the engine lubrication oil with a good quality oil with protective properties.
- Close the raw water seacock and clean the raw water strainer.
- Drain enough cooling liquid from the inner cooling circuit to add 1 liter of extra anti-freeze.
- Have the motor idling for a few seconds so the additional anti-freeze spreads throughout the system.
- Make sure the inner cooling system contains sufficient anti-freeze, checking with a volume gauge.
- Disconnect the battery cables and charge the batteries from time to time during the winter period.
- Drain the water from the fuel filter/water separator to avoid frost damage.
- Fit a new fuel filter.
Tools required
- Volume gauge Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Protective fuel mixture: 10% lubrication oil and 90% clean diesel fuel
- Add 1 liter of extra anti-freeze to the cooling circuit
Source: Craftsman Marine owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.