Nanni N4.60 Instruction Manual

Also see for N4.115: Operator's manual User manual

Contents

Nanni N4.60 Instruction Manual Manual pdf 8 page image

88I Warning! : Your engine must be installed by an authorised shipyard or a qualified Nanni Industries representative inaccordance with the on board assembly instructions.However, you can check some important points on the installation of the engine. However, your installation can be differentthan the one that is indicated in this chapter.1. Engine frameThe engine frame must be solid and able to absorb allthe dynamic stress as well as the weight of the engine. Itmust be connected to the hull by a big a surface area aspossible.The engine must not be at an angle of more than 15° whenthe boat is stopped.2. Propeller shaftThe choice of propulsion system must be made accordingto the restrictions arising from the engine and the boat.3. Water exhaust box (waterlock)The waterlock must be positioned as close to the engineand as low as possible. Its volume must be of 15 litresminimum. The maximum allowable back pressure is 10.5kPa (1.523 PSI).4. Hull outletThe hull outlet must be located 15cm above the water line.The tube between the exhaust box and the hull outlet mustform a swan-neck shape to avoid any water getting into theexhaust system through the hull outlet.5. Anti-siphon valveThis is obligatory on boats whose engine is below thewaterline. The anti-siphon valve must be installed at theend of the seawater system before injection in the exhaustelbow and must be positioned above the waterline, between0.5 and 2 meters.6. Seawater filterThis must always be positioned at least 15cm above thewaterline.7. Through-hull valveOn yachts and boats that do not go above 12 knots, thewater inlet must be turned towards the end of the boat.On motor boats that go over 12 knots, the water inlet mustbe turned forwards.Engine roomThe temperature inside the engine compartment must notexceed 50°C with a maximum difference of 20°C with theoutside temperature.Slow boats must have a ventilator fitted. Fresh air from thefront is circulated from front to back. The front air intake islocated low down at the front of the engine compartmentand the outlet high at the back for optimum air circulation(engine air consumption : 460 m 3 /h).The cables and extensions must be securely fastened tothe engine and / or on the walls of the engine room (donot let it dangle in the hold or let it exposed to water ormoisture).6743512WaterlineInstallation Inspection