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Volvo Penta AD31 Owner's Manual

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Summary of Contents for Volvo Penta AD31

  • Page 22 VOLVO PENTA DIESEL AND GASOLINE ENGINES LAYING-UP AND LAUNCHING GUIDE...
  • Page 23 You will find more detailed information in your engine instruction book and our do-it-yourself manuals. Or consult your authorized Volvo Penta dealer, he will be pleased to carry out your servicing and mainte- nance, if you do not wish to do it yourself. Certain...
  • Page 24 Oil and oil filter changes Cooling system Thermostat Impeller Cooling water hoses/Exhaust hoses Drive belts Fuel system Air filter/Air intake silencer Electrical system Oil changes – drive/reverse gear Drive Propeller Cleaning and painting Ventilation Corrosion protection – inside the engine Ignition system This symbol represents work in connection with the laying-up season...
  • Page 25 You should change the engine oil and oil filter after approx. 100 hours of operation, or at least once per season. Choose Volvo Penta engine oil which has good inhibiting qualities and you will not need to add any special inhibiting oil for a normal winter lay-up.
  • Page 26 Check the oil level before starting the engine.

  • Page 27: Cooling System

    COOLING SYSTEM INHIBITING SEA WATER COOLED ENGINES Regular maintenance and servicing of the cooling system is an effective way of preventing damage from overheating. It is also important to inhibit the cooling system for the lay-up season in order to avoid frost damage and corrosion.
  • Page 28 Then switch off the engine. Insert the free end of the hose into a solution of water and Volvo Penta coolant. Allow the liquid to circulate for a while, without the bucket becoming empty. Switch off the engine and replace the suction pipe.
  • Page 29 COOLING SYSTEM INHIBITING FRESH WATER COOLED ENGINES Regular maintenance and servicing of the cooling system is an effective way of preventing damage from overheating. It is also important to inhibit the cooling system for the lay-up season in order to avoid frost damage and corrosion.
  • Page 30 Check the freezing point of the coolant with a hydrometer and top up the cooling system if necessary. The coolant mixture looses its corrosion protective qualities with time and should therefore be changed every other year. Avoid mixing different types of coolants since N.B.
  • Page 31 THERMOSTAT If your instrument panel has a temperature gauge you will be able to see whether the engine stays at the right working temperature or not. Excessive temperatures are often caused by blockage in the coolant intake, cooling ducts or heat exchanger, or by a defective impeller.
  • Page 32 IMPELLER The impeller pumps cooling water through the engine cooling system. It is, therefore, an extremely vital safety feature. Replace the impeller at least every two years. However, a worn or damaged impeller must be replaced immediately. Make a habit of keeping a spare impeller, and seal for the impeller pump cover, on board.

  • Page 33: Exhaust Hoses

    COOLING WATER HOSES / EXHAUST HOSES As rubber becomes brittle with time, you should occasionally check the hoses for any signs of cracks or damage Leaking cooling water hoses are a safety hazard and can cause the engine to overheat or the boat to become filled with water.

  • Page 34: Drive Belts

    A perfect drive belt gives a better generator charging effect while, at the same time, reducing the risk of overheating. Always keep spare belts on board. Genuine Volvo Penta drive belts last much longer. Check the condition of the belts.

  • Page 35: Fuel System

    FUEL SYSTEM It is important, when overhauling and servicing the fuel system, to consider the safety aspects and always use Genuine Volvo Penta Parts. It is parti- cularly important to avoid getting any dirt into the system. Fill the fuel tank for the lay-up period and you won’t have to worry...

  • Page 36: Air Filter

    An engine with a clean air filter can work more efficiently and uses up less fuel. Use Genuine Volvo Penta filters, they are specially designed and tested for each particular engine type. Change the filter element or clean the air intake silencer.

  • Page 37: Electrical System

    ELECTRICAL SYSTEM Sea air, which can be very humid and salty, presents a tough environment for the electrical system to operate in. The electrical system of the engine can be affected by creeping current, oxidation and voltage drop if you do not overhaul it regularly. Make sure that the wires are undamaged and have not been subjected to bilge water.
  • Page 38 Clean and dry dirty and damp cables. Spray the connection points, contacts and fuse holders on the engine and under the instrument panel with Volvo Penta Univer- sal Oil. Also loosen and clean any oxidized connec- tion points. Check all fuses and make sure that there are spare fuses on board.

  • Page 39: Oil Changes

    If the old oil looks grey, it could be the result of water leaking into the drive. Contact your authorized Volvo Penta workshop if your oil looks grey. Check the oil level.
  • Page 40 And always keep a spare propeller on board. The mechanism of the folding propeller must be greased with Volvo Penta water resistant grease. Please see the detailed instructions in the manual when removing and refitting propeller/s.

  • Page 41: Cleaning And Painting

    Check the whole drive for damaged paintwork. Remove damaged paint and clean down to the bare metal with wet sandpaper. Then paint with Volvo Penta primer and top coat. It is important to use Genuine Volvo Penta N.B.
  • Page 42 VENTILATION Be careful to ensure good ventilation during the lay-up period. The air must be allowed to circulate throughout the boat. Keep the doors and hatches, including the engine compartment door, open in order to avoid condensation and mould. Clean the engine compartment. A clean engine compartment is a prerequisite for maximum safety on board, and makes servicing work that much more agreeable.

  • Page 43: Ignition System

    Faulty adjustment of the ignition can result in engine damage and reduced fuel economy. Use Genuine Volvo Penta components for the ignition system; they meet all marine safety requirements. Make it a rule to change spark plugs at least once every year.
  • Page 44 It is important, from a safety point of view, that all parts are clean and dry. Clean and dry the ignition cables and distributor cover, loosen the distributor cover and clean and dry inside. Spray inside and outside, using a moisture-repellant spray. Replace any damaged or worn parts.
  • Page 45 But it is just as important to ensure that the parts are Genuine Volvo Penta Parts. To locate your nearest Volvo Penta dealer, please go to www.volvopenta.com...

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