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  1. #1
    Focker Foggy's Avatar
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    Supercharger alignment issues ?????? Need suggestions on problem

    This is on my 03 gtx sc 185 hp boat.

    Went to replace my carbon seal due to water leak.
    Noticed SC had worked "loose". the 3 bolts had all backed
    out a bit. (only about 10 hrs since rebuild by Jerry).
    Anyway, put it back on . Replaced carbon seal, bellows, retainer, etc

    The charger really "whines" loudly now. Checked everything out..
    Is tight to engine. After an easy ride it has quieted down a little, but still
    sounds like i've got some monter charger on it...
    And, I can only get 7000 rpms now... I switched impellers, so thought that
    was problem.. NOT
    Still only 7000 rpms. Was getting 7500 before I discovered my
    loose charger problem..
    I have another charger I can try, but it is 215 hp charger with the
    different gear tooth count. Can I just switch out the drive gear
    or maybe that is my problem..
    Any help appreciated


  2. #2
    speedskixp's Avatar
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    Quote Originally Posted by Foggy View Post
    This is on my 03 gtx sc 185 hp boat.

    Went to replace my carbon seal due to water leak.
    Noticed SC had worked "loose". the 3 bolts had all backed
    out a bit. (only about 10 hrs since rebuild by Jerry).
    Anyway, put it back on . Replaced carbon seal, bellows, retainer, etc

    The charger really "whines" loudly now. Checked everything out..
    Is tight to engine. After an easy ride it has quieted down a little, but still
    sounds like i've got some monter charger on it...
    And, I can only get 7000 rpms now... I switched impellers, so thought that
    was problem.. NOT
    Still only 7000 rpms. Was getting 7500 before I discovered my
    loose charger problem..
    I have another charger I can try, but it is 215 hp charger with the
    different gear tooth count. Can I just switch out the drive gear
    or maybe that is my problem..
    Any help appreciated
    Did you install the 3 washers between the sc and the motor. They are required on the 03's.

  3. #3
    Focker Foggy's Avatar
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    Well, Crap....
    I don't think I did 3. Just 1. They must have fallen into hull when I removed it.

    What is the reason for the spacing ?????? my 215's don't do that...

    And , do you think I';ve done any damage to SC gear or flywheel in engine ???

    To clarify, just use 3 standard style washers to space it out ??

  4. #4
    speedskixp's Avatar
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    Quote Originally Posted by Foggy View Post
    Well, Crap....
    I don't think I did 3. Just 1. They must have fallen into hull when I removed it.

    What is the reason for the spacing ?????? my 215's don't do that...

    And , do you think I';ve done any damage to SC gear or flywheel in engine ???

    To clarify, just use 3 standard style washers to space it out ??
    Yes 3 washers 1.5mm thick. i believe the reason they need spaced is because of the updated shaft kit with the old style housings on the 03's. You'll have to insoect for damage. Hopefully you got lucky.

  5. #5
    Focker Foggy's Avatar
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    AH.. now I see.. due to the updated shaft that spaces it "inward" a bit..
    makes sense.
    The excess whining must be from gears meshing not be on the money..
    hope no damage too.
    It sounds pretty mean... too bad no performance to go with it !!!

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