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MerCruiser Vazer engineFeatures

Engine RELiABiLiTY

  • GM Vortec 1600 base engine with single overhead cam valvetrain features a sturdy cast iron block coupled with an aluminum cylinder head for excellent heat transfer and long engine life
  • MerCruiser-exclusive cast aluminum engine oil pan is corrosion resistant, provides added rigidity to the engine block and incorporates a special windage tray that ensures proper lubrication and improves power output
  • Electronic Control Module 555 Multi-Point Electronic Fuel injection system and distributorless ignition system ensure reliable starts and outstanding performance year after year
  • Exclusive Engine Guardian protection senses potential problems and virtually eliminates the chance for engine or drive damage due to overheating, low oil pressure or low drive lubricant
  • Spin-on water separating fuel filter helps protect engine and fuel system from damage
  • Closed cooling system includes the exhaust system water jacket for optimum corrosion resistance and features a patent-pending corrosion-resistant composite shell heat exchanger
  • Serpentine belt accessory drive system for quiet operation and long belt life features spring-loaded self tensioner to ensure correct belt tension with no belt adjustment ever required

Engine PERFORMANCE

  • Patent-pending Aluminum Tri-Y exhaust header is performance tuned to reduce backpressure for optimized torque and horsepower across the engine’s broad RPM range
  • Lowered center of gravity helps boats plane faster, stay on plane at lower speeds and provides more stable handling
  • Multi-Port Fuel injection provides easy starts, cold or hot, and automatically adjusts for changes in temperature, weather and altitude for maximum performance in any environment
  • High energy distributorless ignition for quick starts and maximum power
  • Low-restriction flame arrestor for added horsepower and torque
  • Standard anti-feedback power steering provides a large reduction in steering effort and provides enhanced control at all boat speeds

EASY OWNERSHiP

  • Patent-pending self-draining design means that no water remains in the engine or drive after the boat is removed from the water, eliminating the opportunity for expensive freeze damage to occur.
  • 100 Vazer operates best on easy-to-find and less expensive 87 octane gasoline
  • Single Overhead Cam engine design with hydraulic valve lifters means no valve adjustments for the life of the engine
  • 1 year/100 hour service intervals (see owners manual for specific details) for engine oil and drive lubricant
  • 3-year/300 hour maintenance interval for many periodic service items means less time servicing, more time on the water
  • Vital engine and drive fluids feature convenient translucent reservoirs for quick and easy level checks
  • Color-coded service points make checking and adding fluids simple and clear
  • Top-mounted remote spin-on oil filter and easy oil drain system with through-transom drain hose make routine oil changes easier than ever
  • Long-life anti-freeze only requires replacement every 5 years
  • Drive lubricant monitor warns of low fluid level and triggers Engine Guardian® protection
  • Vazer’s Permalube® U-joints are virtually maintenance-free
  • The Vazer drive utilizes self-lubricating bushings eliminating grease fittings and lubrication points for simplified maintenance
  • Gimbal bearing can be lubricated without removing the drive for easier service

Drive system RELiABiLiTY

  • The Vazer drive utilizes many of the MerCruiser Alpha drive’s internal components for reliability proven by millions of boaters around the world
  • Using gears, shafts and U-joints designed to handle up to three times the power, the Vazer drive system is designed to provide years of enjoyable trouble-free operation
  • Spiral-cut steel bevel gears for quiet operation and excellent durability
  • Housings cast from Mercury-exclusive XK 360 alloy for for the ultimate in strength and corrosion resistance
  • Tri-Paint system (irridite, EDP & powder paint) creates a beautiful yet incredibly durable barrier against harsh marine environments and damaging UV rays
  • Trim cylinders with internal hydraulic porting eliminate the need for exposed trim hoses and eliminate the potential for damage from snags or impact
  • Flo-Torq® ii propeller hub helps protect the entire driveline from damage from impact with an underwater obstacle
  • internal floppy-vane water pump is extremely resistant to run-dry and offers long 3-year recommended service intervals

Drive System PERFORMANCE

  • Reduced height upper driveshaft housing places propeller shaft in proper relationship with boat running surface for optimal planing and top speed
  • Drive geometry allows drive to tilt above the keel in most applications for enhanced shallow water capability and loading on steep boat ramps
  • Combination of low-drag hydrodynamic design and a 4.75” torpedo diameter means more efficiency and the ability to use propellers up to 15” in diameter versus a maximum of 14” diameter for most outboards in this power range
  • Trim limit switch sets drive trim angle for maximum performance every time
  • Through-prop exhaust maximizes power while reducing noise
  • Reduced sound level trim pump for a more pleasurable boating experience
  • Deeper torque-multiplying gear ratios (2.58 or 2.77:1) improve acceleration and allow the use of a wide variety of Mercury propellers in aluminum or stainless steel and in 3-, 4- and 5-blade configurations

Technology

  • First sterndrive canted to 50∞ to dramatically reduce overall engine height; patent- pending.
  • First sterndrive use of composite intake manifold and heat exchanger housing
  • Single overhead cam valvetrain offers broader operating RPM range, up to 6,000 RPM for better acceleration and top speed
  • Computer Aided Design (CAD) and Finite Element Analysis (FEA) were used to help develop the innovative Composite Scrolled Long Runner intake manifold. This design utilizes modern materials to provide long runners, which provide enhanced torque, in a compact low-profile design
  • Aluminum Tri-Y exhaust header and riser increase power and fight corrosion by being incorporated into the anti-freeze filled closed cooling circuit. Patents pending for both the cooling circuit design and exhaust tuning
  • improved engine mounts reduce unwanted vibration and noise for a smoother quieter ride; patent-pending
  • Engine cover requires no tools to remove
  • ECM 555 control module controls Multi-Point Fuel injection, High-Energy ignition, Engine Guardian®, and enables optional SmartCraft gauges and displays
  • Closed cooling system features standard heater connection port allowing boatbuilder or dealer installation of optional heater and hot water shower systems
  • Power Trim XD® system automatically returns the drive to the water in the event that the drive impacts an underwater obstacle allowing the operator to maintain steering control
  • Fluid-ported power trim cylinders feature innovative hydraulic system that utilizes mounting pin to route fluid into and from the cylinders, eliminating exposed trim lines for increased reliability and improved aesthetics