8.8.1 Engine exhausts




The engine exhausts are semi-submerged silenced exhausts.
The exhaust gases leaving the engine are conveyed, through insulated stainless steel manifolds, to the mixer where they are cooled with the sea water on leaving the engine. Subsequently, they are conveyed to the muffler and, through the cooled fiberglass end-pipe, they exit through the transom at a semi-submerged level.
The exhausts have to be checked at regular intervals to avoid the formation of build-ups that could prevent the correct gas ejection.

WARNING

When starting the engines, check that water comes out of the exhausts; this means that the engines cooling system works correctly and that the exhaust is cooled. Accelerate if no water comes out.
If the problem continues, contact the Service Department.

CAUTION

A strong smell and a light smoke from exhaust insulation are normal during the first period of use.

MAINTENANCE

At least once every three months carry out the tightening of the discharge raiser bolts.

CAUTION

Temperature sensors have been installed on both engine exhausts, the warning lights are visible on the sun deck and on the helm station; when they come on, they indicate the temperature inside the exhausts is too high.

CAUTION

Avoid prolonged use of engines at low speeds to avoid overheating of the exhaust pipes due to reduced cooling water circulation.

Main engines exhaust system diagram