Page 1 of 2 1 2 LastLast
Results 1 to 10 of 13
  1. #1

    who can record engine sound...?

    can any of you guys audio record your engine running on the hose? I don`t need to hear the exhaust tone, I`d like to hear the engine itself. Mine is a little noisey and I need something to compare it to?

    I can not isolate this sound, does it at all RPM`s and considerable amount of vibration, what could it be?...PR...


  2. #2
    Moderator
    I build Horsepower
    NitroShark's Avatar
    Join Date
    Jan 2006
    Location
    Greenville,SC
    Posts
    1,388
    +1
    13
    old racer trick


    take a long screwdriver and put it to your ear. You it to listen to different parts of the engine running. put the blade end to the valve cover, blower any part. You will hear noise and rattles and anything that sounds funny will give you a better idea of where to look for trouble.

    This method works well for bearing noise also.

    Shawn

  3. #3
    Hi Shawn, yeah, I know that trick, had stethescope until I lost ear piece, lol.
    anyway this thing is loud, the WHOLE engine is loud. If it were a rod knock I`d think I`d be able to distinguish which cylinder but no ,
    I don`t know what noises are considered normal for the 4-tec anymore since things have escaladed...PR...

  4. #4
    Hydrotoys's Avatar
    Join Date
    Jul 2005
    Location
    Mesa, AZ
    Posts
    16,712
    +1
    85
    flywheel bolts on the 2004 ones??

  5. #5
    EZ Dock of Long Island Shibby1485's Avatar
    Join Date
    May 2005
    Location
    Long Island, NY
    Posts
    9,464
    +1
    4
    is it running on all 3 cylinders?

  6. #6
    Moderator
    I build Horsepower
    NitroShark's Avatar
    Join Date
    Jan 2006
    Location
    Greenville,SC
    Posts
    1,388
    +1
    13
    Quote Originally Posted by Pale Rider View Post
    , had stethescope until I lost ear piece, ...

    I use a Chassis Ear now,, and it works well when i tune the ski for detonation. most Top tuners use a ear piece over electronics, then compare the two.

    Shawn


  7. #7
    Quote Originally Posted by Shibby1485 View Post
    is it running on all 3 cylinders?
    Hi Steve, I think so, exhaust tones sound normal...PR...

  8. #8
    EZ Dock of Long Island Shibby1485's Avatar
    Join Date
    May 2005
    Location
    Long Island, NY
    Posts
    9,464
    +1
    4
    Quote Originally Posted by Pale Rider View Post
    Hi Steve, I think so, exhaust tones sound normal...PR...
    our skis will run on 1 cylinder no problem, two it will do with ease..

    make sure she's running on all three first as that could be a source of vibration...

    start the ski up on the trailer, u dont need a hose or anything, just start it and let it idle for 10 seconds and then one by one just unplug the connector going into each coil... u'll hear and feel a difference if u unplug a cylinder that was firing... if u pull a plug and hear and feel no difference than it's not running... it's worth a shot

    u dont need the hose or anything, just start it and let it run, they can run plenty of time with no damage with no water for diagnostic purposes.. this will take you all of 30 seconds to do

  9. #9
    gotcha... ski pulls to strong to be plugs or coils I would think.
    more noise than performance issue ...PR...

  10. #10
    EZ Dock of Long Island Shibby1485's Avatar
    Join Date
    May 2005
    Location
    Long Island, NY
    Posts
    9,464
    +1
    4
    also could be engine alignment, no?

    you have a solid front mount or stock?

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 3
    Last Post: 03-08-2010, 01:54 AM
  2. rxt troubles - Engine sounds like it's shaking apart
    By rxtscott in forum 4-Tec Performance
    Replies: 6
    Last Post: 08-11-2006, 02:07 PM
  3. who can get valve seats!
    By beachboy66 in forum 4-Tec Performance
    Replies: 12
    Last Post: 08-09-2006, 07:00 AM
  4. Who can tune seadoo engines in Houston?
    By ron00023 in forum Yamaha PWC Performance (2-stroke)
    Replies: 8
    Last Post: 04-18-2006, 06:34 AM
  5. WHO can help???
    By CRAZEDRXP in forum Sea Doo Open Discussion
    Replies: 3
    Last Post: 06-08-2005, 11:52 AM

Posting Permissions

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