Yanmar 1GM, Operation Manual

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Piping Diagram
1. Inside Packing
2. Kingston cock cover
3. Outside Packing
4. Direction of vessel movement
5) Seawater strainer
The seawater pump will be damaged if foreign matter is allowed to get into it. Therefore,
attach a seawater strainer between the seawater pump inlet and the seawater cock when the
sea water cock is not already equipped with a strainer.
6) Exhaust pipe layout
Be sure to use the water-lock. Installation of piping should be done as shown in the following
diagram.
6-a)
In case the water outlet of the engine side (A) is above water line.
6-b)
In case the water outlet of the engine side (A) is below water line.
7) Air ventilation and Intake pipe
If the engine is operated at below normal output, incomplete combustion can occur as a result
of an overheated engine room. Therefore, the engine room should be adequately ventilated.
Important
During piping works be sure to cover the intake opening to prevent the entry
of foreign matter.