2004 Engine Preview Page 4

Engines — Elizabeth Ginns Britten, Capt. Ken Kreisler, and Capt. Patrick Sciacca

2004 Engines Preview
Outboards: Mercury

 More of this Feature
Part 1: Engine Overview

  • Evinrude/Johnson
  • Honda
  • Mercury
  • Nissan/Tohatsu
  • Suzuki
  • Yamaha

  • Bugatti Marine
  • Cummins MerCruiser
  • Deutz
  • John Deere
  • Lugger
  • MAN
  • MTU
  • Steyr
  • Volvo Penta
  • Yanmar

    Diesel Gensets
  • Caterpillar
  • Kohler
  • Northern Lights
  • Onan
  • Westerbeke

  • Crusader
  • Mercury
  • Volvo Penta

    Gasoline Gensets
  • Onan
  • Westerbeke

  •  Related Resources
    • Engines Editorial Index
    • Engines Resources Index

    Mercury has added 115-, 90-, and 75-hp models to its OptiMax line. All feature a 1.5-liter, four-cylinder block and the company’s OptiMax direct fuel-injection process. Mercury’s 038 Motorola control module manages the engines and offers SmartCraft capabilities with dashboard displays.

    The heart of these engines is OptiMax, a two-stage system whereby fuel is discharged into a holding cavity before being shot into the cylinder by a burst of pressurized air. This results in a finer dispersion of fuel, creating a more complete burn; smoother, more efficient operation; and fewer emissions. According to Mercury, OptiMax creates the finest atomization of fuel in any system available and uses up to 45 percent less fuel than traditional two-stroke engines. OptiMax engines also feature a self-contained 60-amp/756-watt belt-driven alternator and a five-quart integral oil reservoir.

    All three engines are CARB three-star compliant.

    Mercury Phone: (920)929-5000. www.mercurymarine.com.

    Next page > 2004 Engine Preview: Nissan/Tohatsu >

    This article originally appeared in the December 2003 issue of Power & Motoryacht magazine.

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