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Johnson Evinrude Powerhead Installation

Manufacturer BRP Marine
Engine Type Outboard
Repair Time 1 to 2 hours
Repair Difficulty Professional
  • Install .0002" larger jets in carburetors.

  • Max timing MUST be retarded 2 degrees. Max timing MUST be set with engine running over 4500 RPM & under load. DO NOT STATIC SET MAX TIMING.

  • Re-torque cylinder heads to specs.

  • After 1 hour of break-in, allow engine to cool and retorque heads.

  • On 3 Cylinder engines, replace water pump with new high pressure water pump.

  • On 3 Cylinder engines, drill and relocate overboard sensors.

  • On 3 Cylinder engines, check latest OMC service bulletins and jet carburetors accordingly. THIS IS VERY IMPORTANT.

  • Use 92-94 octane premium fuel.

  • Clean and refill oil tank with TCW-3 oil.

  • Mark oil tank to verify oil comsumption during double oil usage of break-in period.

  • Run double oil during the first 30 gallons of fuel.

  • If running oil injection use 1 pint oil per 6 gallons gas.

  • If no oil injection, use 1 quart oil per 6 gallons gas.

  • Crowley Marine recommends installing water pressure gauge to monitor water flow.

  • Crowley Marine suggests removal of oil injection system or updating to latest VRO pump.

  • Crowley Marine recommends you replace water pump and gasket at time of powerhead replacement and every 2 years afterwards.

BRP292R - Johnson/Evinrude Two Cylinder 40-55HP 1989-2005
BRPC494R - Johnson/Evinrude V4 Bubbleback 110-140HP 1978-1998
BRPD401R - Johnson/Evinrude V4 60° Carbureted 90-115HP 1995-2006
BRPD404R - Johnson/Evinrude V4 60° FICHT 75-115HP 1998-2006
BRPL412R - Johnson/Evinrude V4 90° Looper 120-140HP 1985-2001
BRPC489R - Johnson/Evinrude V4 Flatback 88-115HP 1978-1998
BRPL619R - Johnson/Evinrude V6 90° FICHT 200-250HP 1999-2005
BRPL612R - Johnson/Evinrude V6 90° Looper Carb 200-250HP 1986-2001