Winterizing an engine requires method and organization. Although this task usually takes no more than half a day, it's essential not to rush. Good preparation ensures that every step is carried out correctly, and that nothing is overlooked. Indeed, seemingly insignificant details can cause major problems when you try to restart your engine in the spring.
This period of dormancy is a privileged moment for yachtsmen: it allows them to check every engine component, maintain sensitive parts and anticipate any repairs that may be required, which can be carried out quietly over the winter. A good winterization is first and foremost a guarantee of peace of mind
The logbook, an indispensable tool
Keeping a mechanical logbook throughout the season is a simple but effective way of facilitating winterization. It's not necessary to record everything in minute detail, but noting any abnormalities observed during the year, such as a difficult start-up or abnormal vibrations, ensures that you don't forget the warning signs of a breakdown. This regular monitoring helps to pinpoint the points to watch out for during wintering, and to intervene before more serious problems develop.
Understanding the engine's specific features
Inboard diesel engines are very robust, but they require special care. Unlike other types of engine, diesel engines need time to warm up. Forcing a diesel engine cold can lead to premature wear, or even mechanical damage. This is especially true after a long period of inactivity.
Another important point to consider is the diesel engine's sensitivity to humidity. Condensation, which can form inside the tank, is a frequent source of problems. Another aspect not to be overlooked is the fuel return system specific to diesel engines. Part of the fuel injected into the engine returns to the tank after being heated. This return of hot fuel to a colder tank encourages the formation of condensation inside the tank, a phenomenon that can lead to water infiltration into the system. It is therefore crucial to prevent this build-up of water by using suitable additives or filtration devices, which prevent water droplets from entering the engine circuit.
Document every intervention, a good habit to adopt
When winterizing, it's a good idea to make a note of every action carried out, and to photograph certain parts of the engine before and after the operation. This not only keeps a record of the engine's condition, but also facilitates future maintenance. This documentation is particularly useful if problems arise when the engine is put back into service: it provides a valuable point of comparison.
Preserving engine durability
Winterization isn't just about avoiding breakdowns. It's also a way of prolonging the life of your engine and maintaining its performance season after season. A well-maintained engine is more reliable and requires fewer costly repairs. What's more, careful winterization means you can drive off in the spring without fear of unpleasant surprises.
Summary of the report
1
How do you drain your engine in board?
2
Check the water pump of your motor in board
3
How do I winterize my speedboat?
4
How do I winterize my boat's batteries?
5
Winterization of an outboard engine
6
In-board engine: put the cooling system out of freezing
7
Oil: When is the best time to change oil? At the beginning or at the end of the season?
8
Engine, check and maintain the rotating joint of your engine in line shaft
9
