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Thread: outdrive flush kit

  1. #1
    Join Date
    Sep 2007

    Default outdrive flush kit

    Is there any benefit to flushing the outdrive after every use with fresh water when the drive is left in the salt water? If so, what method do you recommend to flush the outdrive when left in water? I have an se116 outdrive attached to mercruiser 4.3l

    I'm thinking of installing the perko flush pro which blocks the water flow going into the engine from the outdrive when
    the engine is running. Will the back pressure damage my se116 outdrive and/or impeller? Boat will be in the water!!
    Last edited by rschupp; 10-02-2007 at 08:48 PM.

  2. #2
    Join Date
    Sep 2006


    It appears from looking at the flush pro that you would get a mix of fresh and salt water going to your engine. To flush your engine you would be better off removing the water hose from the drive to the engine and allowing it to pump overboard. You can fashion a hook up from a garden hose to the motor to flush it after you start the engine.

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Sterndrive Engineering, Inc. (SEI) manufactures a stern drive designed to replace Mercury Marine's MerCruiserŽ Alpha OneŽ, R, MR, Gen II and Bravo OneŽ stern drives. MerCruiserŽ Alpha One, R, MR, Gen II and Bravo OneŽ are trademarks of the Brunswick Corporation. SEI has no affiliation with the Brunswick Corporation. Consequently, any warranties governing products and or sold by Brunswick Corporation will not apply to products manufactured and or sold by SEI, or to products damaged due to the operation of an SEI product.