How to Fix the Flywheel on an Outboard

The flywheel on an outboard engine is a round, metal mechanical piece that stores and uses rotational energy to power engines and to give balance to the crankshaft. The outboard flywheel is attached directly to the crankshaft. If the flywheel ever becomes stuck or otherwise damaged, it will have to be replaced. Removing a flywheel is a job that has to be done with an assistant. It takes an hour or two to replace a flywheel.

Things You'll Need

  • Socket set
  • Flywheel holder
  • Flywheel removal tool
  • Replacement flywheel
  • Protector cap
  • Rag scrub brush
  • Rubber mallet
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Instructions

    • 1

      Use the socket set to remove the flywheel cover bolts. Set these bolts, along with the flywheel cover, to the side.

    • 2

      Place the flywheel holder onto the center of the flywheel and then clamp it down so that it securely holds the flywheel. Have the assistant to hold the flywheel holder in place.

    • 3

      Remove the flywheel nut by turning it to the left with the socket set. Make sure your assistant has a firm hold on the flywheel so it does not move while you remove this nut.

    • 4

      Slip the flywheel protector cap over the center of the flywheel and then position the flywheel puller down over the flywheel. Tighten the wrench until the force eventually pops the old flywheel free. Remove the old flywheel and clean the seating area off with a rag and scrub brush if necessary.

    • 5

      Set the new flywheel in place and use a rubber mallet to tap it firmly into place.

    • 6

      Have the assistant attach the flywheel holder again as you install the new flywheel bolt.

    • 7

      Replace the flywheel cover and the flywheel cover bolts.