Free mercruiser 4.3l service manuals download pdf






















Ignition Timing. Thunderbolt V Models. Cold Weather or Extended Storage. Power Package Layup. Draining Instructions. Draining Sterndrive. Previous Page. Next Page. Page 3: Maintenance Schedules In consideration of these factors, Mercury MerCruiser has adjusted some maintenance intervals and corresponding tasks to be performed.

In some cases, this may allow for more individual tasks to be performed in a single visit to the serving dealer, rather than multiple visits. Change crankcase oil and filter. Change drive unit oil and retorque connection of gimbal ring to steering shaft. Page 5: Engine And Tune-Up Specifications Timing must be set using a special procedure as outlined in the appropriate section of this manual.

Timing can- not be properly set using the conventional method. A special procedure must be followed to adjust idle rpm. Quarts Liters All capacities are approximate fluid measures. Page 7: Hour Break-In Period full throttle rpm. If you are in an area where the product is operated continuously year-round operation , you should contact your dealer at the end of the first hours of operation, or once yearly, whichever occurs first. Mercury MerCruiser V-8 engines can use any type of permanent antifreeze or any brand antifreeze solution that meets GM specification M.

The over-full condition results in the engine crankshaft splashing and agitating the oil, causing it to foam become aerated. It is normal for an engine to use a certain amount of oil in the process of lubrication and cooling of the engine.

The amount of oil consumption is greatly dependent upon engine speed, with consumption being highest at wide-open-throttle and decreasing substantially as engine speed is reduced. Gasoline is extremely flammable and highly explosive under certain conditions. Be sure ignition key is OFF. Do not smoke or allow spark or open flame in area when changing fuel filter. Wipe up any spilled fuel immediately.

Remove water separating fuel filter and sealing ring from mounting bracket and discard. Coat sealing ring on new filter with motor oil. Thread filter onto bracket and tighten securely by hand. Do not use a filter wrench. Stop engine.

Position drive unit so that it is straight back. All air must be removed, or fluid in pump may foam during operation and be discharged from pump reservoir. Sudden loss of pressure could cause hot coolant to boil and discharge violently. Thoroughly flush the seawater cooling system prior to storage.

NOTE: For additional protection against freezing and rust to the exhaust manifolds and other components, a mixture of antifreeze and water can be run through the engine during Power Package Layup. Install flushing attachment over water pickup holes in gear housing as shown. Attach a water hose between the flushing attachment and a water tap.

Lubricate pivot points and guide contact surfaces with SAE 30W motor oil. Be careful when cleaning flame arrestor and crankcase ventilation hoses. Remove flame arrestor cover. Remove crankcase ventilation hose from fitting on side of flame arrestor housing. Remove flame arrestor. Clean flame arrestor in solvent. Blow dry with compressed air. Longitudinal cracks in direction of belt length that join transverse cracks are NOT acceptable.

Run engine for a short period of time and recheck belt adjustment. Connect timing light to number 1 spark plug wire. Start engine and run at rpm until it reaches normal operating temperature. Fill fuel tank s with fresh gasoline that does not contain alcohol and a sufficient amount of Quicksilver Gasoline Stabilizer for Marine Engines to treat gasoline.

Prepare EFI fuel system for extended storage as follows: a. Allow engine to cool down. Remove the water separating fuel filter. Pour out a small amount of fuel into a suitable container, then add approximately 2 fluid ounces 60 ml of Quicksilver 2-Cycle Outboard Oil to fuel in the water separat- ing fuel filter. Remove drain plugs from bottom of port and starboard manifold fittings. Repeatedly clean out drain holes using a stiff piece of wire. Do this until entire system is drained.

Tim hunter Friday, 27 August I have a Bayliner with an engine Mercriser V8 7. Victor T. Martinez Thursday, 26 August Alan Wednesday, 28 July Jason Friday, 23 July Looking for a manual for a Sea Ray Sundancer sport Cruiser 3. Daniel Sarrubbo Wednesday, 21 July I am looking to get a hardcopy of a manual for a Mercruiser 5. Was wondering if you know where I could get one.

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If there is a cost let me know where and how to pay and who to get the motor information. Thank you Thomas. Alexandr Wednesday, 11 November Hello, I need a service manual for Mercury Verado f Mail address: Cob gmail. Eric Mitran Monday, 26 October I have a 5. Thanks Eric. Hi please send me the manual for a 6. Jesus Monday, 24 August Bruce Hanley Sunday, 23 August Hi, I'm looking for a manual for inboard Mercruiser 7. Thanks in advance. Mary Gonzalez Sunday, 16 August Bossert Wednesday, 08 July Hello, I am looking for a Mercury Outboard 90HP 2 stroke repair and service manual with a complete parts list.



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