Tartan 3700, Owner'S Manual

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understood. The life and performance of the engine will depend upon the care it is given
6.4 Propellers
The standard propeller supplied with the yacht is a folding three or four bladed bronze unit.
When sailing, it is advised to lock the propeller by putting the engine "in reverse" after it has been
shut off. This will prevent the propeller from rotating or "free wheeling". The folding propeller on the
Saildrive unit is a geared propeller, which will automatically close the propeller blades when sailing.
6.5 Removal of Propeller
Refer to the engine Owner’s Manual for detailed instructions on removal of the propeller.
6.6 Installation of the Propeller
Refer to the engine Owner’s Manual for detailed instructions on installation of the propeller.
6.8 Exhaust System
The exhaust system utilizes a horizontal type muffler. In operation, the engine water pump draws
water through the engine intake port, circulates it through the engine block then into the muffler. The
water is mixed with the exhaust gases in the muffler and discharged overboard through the exhaust
port in the stern of the yacht.
In a yacht fitted with fresh water cooling, an auxiliary pump draws water through the intake port,
circulates it through a heat exchanger then pumps it into the muffler and overboard through the
exhaust port. Seawater in the heat exchanger lowers the temperature of the engine coolant circulated
through the engine block by means of the normal engine water pump.