Page 1 of 2 1 2 LastLast
Results 1 to 10 of 13
  1. #1
    GasResearch-VT.SE's Avatar
    Join Date
    Nov 2012
    Location
    Melbourne, Australia
    Posts
    1,172
    +1
    207

    When a flywheel sheers

    Whats the best and worst case scenario when flywheel bolts have sheered?

    Is it common to just replace the bolts if there is no gear damage anywhere?


  2. #2
    Sayers's Avatar
    Join Date
    Jul 2010
    Location
    Melbourne AUS
    Posts
    2,300
    +1
    134
    More than likely you will have damage to the stator and probably mag cup at the very least.

  3. #3
    Sayers's Avatar
    Join Date
    Jul 2010
    Location
    Melbourne AUS
    Posts
    2,300
    +1
    134
    One good thing about the failure is that when it lets go it instantly kills the engine stoping shit from getting pumped through the engine, so clean out is easy.

  4. #4
    Water4fire's Avatar
    Join Date
    May 2005
    Location
    New Braunfels TX.
    Posts
    10,062
    +1
    790
    Bits and pieces go through the oil pumps and starve the rods bearings of oil. I have seen this twice if it is not pproperly cleaned out. That flywheel eats that stator to hell and then flushes that copper everywhere. Please dont just pull it and replace and put back togethere. Split case and clean all oil ports and pumps.

  5. #5
    GasResearch-VT.SE's Avatar
    Join Date
    Nov 2012
    Location
    Melbourne, Australia
    Posts
    1,172
    +1
    207
    I wish I spoke to you Sayers earlier... The ski did exactly that and then threw 'sc maint' light (weird) and would not crank...

    Now the crank and cam turn together but sc does not and the starter does not crank(locked) so I'm guessing fly wheel bolts?

    Tomorrow I have some helpers over to give meotivation as I'm pretty over it. (Remember it's an iS)

  6. #6
    GasResearch-VT.SE's Avatar
    Join Date
    Nov 2012
    Location
    Melbourne, Australia
    Posts
    1,172
    +1
    207
    Quote Originally Posted by Water4fire View Post
    Bits and pieces go through the oil pumps and starve the rods bearings of oil. I have seen this twice if it is not pproperly cleaned out. That flywheel eats that stator to hell and then flushes that copper everywhere. Please dont just pull it and replace and put back togethere. Split case and clean all oil ports and pumps.
    Ill run past a friends shop before making decisions, thanks for the heads up

  7. #7
    Sayers's Avatar
    Join Date
    Jul 2010
    Location
    Melbourne AUS
    Posts
    2,300
    +1
    134
    Be careful which parts you buy, stator and mags are different sizes when they switched manufactures from Denso and then back without a part number change.

  8. #8

  9. #9
    GasResearch-VT.SE's Avatar
    Join Date
    Nov 2012
    Location
    Melbourne, Australia
    Posts
    1,172
    +1
    207
    Quote Originally Posted by Sayers View Post
    More than likely you will have damage to the stator and probably mag cup at the very least.

    This was my exact damage...

    Nothing in screen, heaps of copper everywhere, oil pumps clean.... Probably very lucky.

    Thanks for the help guys....

    12.9 tension bolts it is! Any recommendation for torque specs?

  10. #10
    Sayers's Avatar
    Join Date
    Jul 2010
    Location
    Melbourne AUS
    Posts
    2,300
    +1
    134
    Quote Originally Posted by GasResearch-VT.SE View Post
    Quote Originally Posted by Sayers View Post
    More than likely you will have damage to the stator and probably mag cup at the very least.

    This was my exact damage...

    Nothing in screen, heaps of copper everywhere, oil pumps clean.... Probably very lucky.

    Thanks for the help guys....

    12.9 tension bolts it is! Any recommendation for torque specs?
    I would go with Sniper300 advice in my thread, 26 ft-lbs and Red loctite.

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. 2002 Virage i 800di flywheel sheers key way
    By sandonut in forum Polaris Open Discussion
    Replies: 2
    Last Post: 09-03-2014, 05:36 PM
  2. Replies: 18
    Last Post: 04-29-2014, 05:59 AM
  3. When did your SC fail?
    By Jarrett in forum 4-Tec Performance
    Replies: 22
    Last Post: 07-11-2005, 09:36 AM
  4. Strong Recommendation when changing clutches
    By Cutter in forum 4-Tec Performance
    Replies: 1
    Last Post: 07-06-2005, 03:58 PM
  5. Replies: 3
    Last Post: 05-17-2005, 02:50 PM

Posting Permissions

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