+ Reply to Thread
Results 1 to 9 of 9

Thread: N19 Vibration cause?

  1. #1
    Christian Rasmussen depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth's Avatar
    Join Date
    Aug 2006
    Location
    Denmark
    Posts
    1,022

    N19 Vibration cause?

    Hi RW members

    My Silent Submersion N19 is shaking a bit during operation at it is quite anoying. I checked the axle when it spins and it does not seem to be off center. What is the usual cause for this?:

    1. Is one of the blades are damaged or is not pitched at the same angle as the two others?

    2. Do I need to change the motor bearings?

    3. Other?

    Thanks

    /Christian
    Come to the darkside.... we have cookies...

  2. #2
    RBW Member Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36's Avatar
    Join Date
    Aug 2007
    Location
    Deerfield_Beach, Florida
    Posts
    4,064
    rEvo

    Defender Optima Dolphin

    Re: N19 Vibration cause?

    If the bearings are bad enough to cause a vibration, then i have to think it would be bad enough for the seal to leak also.

    If any of the blades are damaged in any way this will cause it quickly.

    Troubleshoot it like this:

    1 - Remove the entire clutch hub and blades. Do not run very long out of water. if the vibration is still there, then it is most likely an internal problem. If the vibration is not there, go to #2.

    2 - Replace the hub and blades. Run again for a very short time. If the vibration is there, then there is most likely an issue with one or more of the blades. If the vibration is not there, go to #3.

    3 - Submerge and test again. If the vibration is there, it is either the blades or a problematic clutch.

    Check to see if the ends of any of the blades have hit the shroud. This can cause the ends to wear down and make things off balance. check to see if all the blades run in the same rotation and there is no run out (this could be a worn center hub or pivot on blade).

  3. #3
    Christian Rasmussen depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth's Avatar
    Join Date
    Aug 2006
    Location
    Denmark
    Posts
    1,022

    Re: N19 Vibration cause?

    Quote Originally Posted by Dsix36  View Original Post
    If the bearings are bad enough to cause a vibration, then i have to think it would be bad enough for the seal to leak also.

    If any of the blades are damaged in any way this will cause it quickly.

    Troubleshoot it like this:

    1 - Remove the entire clutch hub and blades. Do not run very long out of water. if the vibration is still there, then it is most likely an internal problem. If the vibration is not there, go to #2.

    2 - Replace the hub and blades. Run again for a very short time. If the vibration is there, then there is most likely an issue with one or more of the blades. If the vibration is not there, go to #3.

    3 - Submerge and test again. If the vibration is there, it is either the blades or a problematic clutch.

    Check to see if the ends of any of the blades have hit the shroud. This can cause the ends to wear down and make things off balance. check to see if all the blades run in the same rotation and there is no run out (this could be a worn center hub or pivot on blade).
    Thanks mate, I will test it later this week.

    I tried searching the web for a exploded view of the scooter but no luck. Any chance you got one?

    regards

    Christian
    Come to the darkside.... we have cookies...

  4. #4
    RBW Member Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36 has a reputation beyond repute Dsix36's Avatar
    Join Date
    Aug 2007
    Location
    Deerfield_Beach, Florida
    Posts
    4,064
    rEvo

    Defender Optima Dolphin

    Re: N19 Vibration cause?

    Only this one:

    PROPELLER AND HUB

    Also, check the shafty for play when the hub is removed.

  5. #5
    Christian Rasmussen depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth's Avatar
    Join Date
    Aug 2006
    Location
    Denmark
    Posts
    1,022

    Re: N19 Vibration cause?

    Quote Originally Posted by Dsix36  View Original Post
    Only this one:

    PROPELLER AND HUB

    Also, check the shafty for play when the hub is removed.
    DOH! Can't believe i missed that.

    Ok, I will check and post my result here...

    /Christian
    Come to the darkside.... we have cookies...

  6. #6
    RBW Member AzTek Diver is an unknown quantity at this point AzTek Diver's Avatar
    Join Date
    Sep 2007
    Location
    Phoenix, AZ/Tulum MX
    Posts
    169

    Re: N19 Vibration cause?

    Replace the hub/yoke, it is broken.
    Last edited by AzTek Diver; 20th September 2015 at 23:58.

  7. #7
    RBW Member tbone1004 is an unknown quantity at this point tbone1004's Avatar
    Join Date
    Jul 2014
    Location
    Greenville, South Carolina, United States
    Posts
    141
    Meg

    Homebuilt

    Re: N19 Vibration cause?

    could also be an issue with one of the blades if one got nicked and is off balance.

  8. #8
    RBW Member cameron is just really nice cameron is just really nice cameron is just really nice cameron is just really nice cameron is just really nice cameron is just really nice cameron is just really nice cameron is just really nice cameron is just really nice cameron is just really nice cameron's Avatar
    Join Date
    Apr 2005
    Location
    Toronto, Ontario, Canada
    Posts
    700
    KISS Classic

    Re: N19 Vibration cause?

    Check the yoke. If one of the blade pins is cracked it can cause a terrible vibration.

  9. #9
    Christian Rasmussen depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth is just really nice depth's Avatar
    Join Date
    Aug 2006
    Location
    Denmark
    Posts
    1,022

    Re: N19 Vibration cause?

    An small update:

    Dismantled the whole prop assembly.
    Rinsed it all down in water with a toothbrush.
    Lubricated all joint-surfaces with high quality silicone.
    Re-assembled everything.

    Went for a dive today, no more vibrations :)

    Thank you all for tips and suggestions...

    /Christian
    Come to the darkside.... we have cookies...

+ Reply to Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts