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Thread: Raptor 400 Impeller Change

  1. #1
    Join Date
    Aug 2019
    Location
    Northern Utah
    Posts
    25
    Boat
    2015 Tige Z3

    Raptor 400 Impeller Change

    Hey everyone, Here is a Video of how I changed the Impeller on my Raptor 400 Engine. Boat is a 2015 Z3. Perhaps this will help someone looking to tackle this job.

    https://www.youtube.com/watch?v=q8KkXYnRO6I

  2. #2
    Join Date
    Jan 2018
    Location
    Boise, ID
    Posts
    98
    Boat
    2018 R23, Centurion Avalanche (previous)
    Thanks for the vid man! Ill be tackling changing mine next time I think.

  3. #3
    Join Date
    Aug 2019
    Location
    Northern Utah
    Posts
    25
    Boat
    2015 Tige Z3
    Quote Originally Posted by Sublimer23 View Post
    Thanks for the vid man! Ill be tackling changing mine next time I think.
    Sure thing! It’s not hard, the only challenge is just getting access to the impeller, but as you can tell it can be done.

  4. #4
    Join Date
    Dec 2015
    Location
    Denver, CO
    Posts
    996
    Boat
    2007 22ve
    Do yourself a favor and buy the $40 sea dog impeller puller, it makes this job so easy and won’t damage the impeller or housing like pliers or screwdrivers.
    I like to keep my old impeller as a backup in case I have an issue with the new one throughout the season. I replace mine yearly. For the cost of a $35-40 part I get the piece of mind it’s gonna work all year.
    Another tip, remove it during winterization and replace it in the spring, or if you cycle antifreeze through your engine just remove and replace in the spring, that way the impeller blades can’t take a set.

    https://www.discountmarinesupplies.c...YaAnwbEALw_wcB

    EFCD6E93-68DC-4B8B-A60D-89D8ABAF5363.jpg
    Last edited by Jetdriver; 09-04-2019 at 06:52 PM.

  5. #5
    Join Date
    Aug 2019
    Location
    Northern Utah
    Posts
    25
    Boat
    2015 Tige Z3
    Quote Originally Posted by Jetdriver View Post
    Do yourself a favor and buy the $40 sea dog impeller puller, it makes this job so easy and won’t damage the impeller or housing like pliers or screwdrivers.
    I like to keep my old impeller as a backup in case I have an issue with the new one throughout the season. I replace mine yearly. For the cost of a $35-40 part I get the piece of mind it’s gonna work all year.
    Another tip, remove it during winterization and replace it in the spring, or if you cycle antifreeze through your engine just remove and replace in the spring, that way the impeller blades can’t take a set.

    https://www.discountmarinesupplies.c...YaAnwbEALw_wcB

    EFCD6E93-68DC-4B8B-A60D-89D8ABAF5363.jpg
    Thanks for the suggestions

  6. #6
    Join Date
    Oct 2018
    Location
    Parker, TX
    Posts
    346
    Boat
    Tige R23
    What is the difference between the raw water impeller and the closed cooling impeller that causes the raw water impeller to be changed each year?

    What is the likelihood of having an impeller issue if you didn’t change it? Don’t jump on me here, I am planning to replace it each year I am just curious as to why!

    My previous 18 years of boat ownership was with mercrusier I/O alpha one drives and those raw water impellers do not need to be changed but once ever 3years or 100hrs which ever comes first.

    Please help educate me!!!


    Sent from my iPhone using Tapatalk

  7. #7
    Join Date
    Apr 2006
    Location
    Lake Wylie area, NC
    Age
    51
    Posts
    28,283
    Boat
    Back in the good ol' days a 2006 22ve
    What is the difference between the raw water impeller and the closed cooling impeller that causes the raw water impeller to be changed each year?
    I think you might be talking about the same pump. Both open cooling and closed cooling systems have a raw water impeller pump. On an open cooling, it feeds the entire engine. On a closed cooling, it supplies the heat exchanger ( radiator on a car) and exhaust manifolds.

    The raw water impeller is a consumable, like belts, brake pads and wiper blades. But a failed impeller means an overheating engine compared to a streaking windshield. Replace as preventative so to avoid a roined weekend/blown engine.
    Mikes Liquid Audio: Knowledge Experience Customer Service you can trust-KICKER WetSounds ACME props FlyHigh Custom Ballast Clarion LiquidLumens LEDs Roswell Wave Deflector And More

  8. #8
    Join Date
    Oct 2018
    Location
    Parker, TX
    Posts
    346
    Boat
    Tige R23
    Quote Originally Posted by chpthril View Post
    I think you might be talking about the same pump. Both open cooling and closed cooling systems have a raw water impeller pump. On an open cooling, it feeds the entire engine. On a closed cooling, it supplies the heat exchanger ( radiator on a car) and exhaust manifolds.

    The raw water impeller is a consumable, like belts, brake pads and wiper blades. But a failed impeller means an overheating engine compared to a streaking windshield. Replace as preventative so to avoid a roined weekend/blown engine.
    But the closed cooling section of my raptor must have a pump too that circulates the coolant right?


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  9. #9
    Join Date
    Apr 2006
    Location
    Lake Wylie area, NC
    Age
    51
    Posts
    28,283
    Boat
    Back in the good ol' days a 2006 22ve
    Yes, the circulation pump. Open cooling has one also.
    Mikes Liquid Audio: Knowledge Experience Customer Service you can trust-KICKER WetSounds ACME props FlyHigh Custom Ballast Clarion LiquidLumens LEDs Roswell Wave Deflector And More

  10. #10
    Join Date
    Oct 2018
    Location
    Parker, TX
    Posts
    346
    Boat
    Tige R23
    Quote Originally Posted by chpthril View Post
    Yes, the circulation pump. Open cooling has one also.
    Does the closed cooling section pump need to be replaced or is it not considered as a wear item like the raw water impeller and will last a lot longer like a water pump on a car engine?


    Sent from my iPhone using Tapatalk

  11. #11
    Join Date
    Apr 2006
    Location
    Lake Wylie area, NC
    Age
    51
    Posts
    28,283
    Boat
    Back in the good ol' days a 2006 22ve
    The circulation pumps on either engine cooling type, would not be considered a wear item, needing regular replacement like the impellers on the raw water pumps.
    Mikes Liquid Audio: Knowledge Experience Customer Service you can trust-KICKER WetSounds ACME props FlyHigh Custom Ballast Clarion LiquidLumens LEDs Roswell Wave Deflector And More

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