Page 1 of 2 1 2 LastLast
Results 1 to 10 of 15
  1. #1
    GPRXP vspec1's Avatar
    Join Date
    Jun 2009
    Location
    Orlando, Fl.
    Posts
    1,517
    +1
    253

    Broken rocker arm, any idea's

    Well it was a very short ride for me today, ski shutoff less than a mile from the ramp. Took it home and this is what I found..... Any ideas as to what might have caused this? Is this a common failure with an aftermarket ecu? Thanks in advance !!! Anyone have an extra one?
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	tx crowd 003.JPG 
Views:	56 
Size:	1.55 MB 
ID:	162605   Click image for larger version. 

Name:	tx crowd 004.JPG 
Views:	46 
Size:	1.45 MB 
ID:	162606  


  2. #2
    JPR's Avatar
    Join Date
    Mar 2007
    Location
    Down under
    Posts
    934
    +1
    53
    what dose cylinder below that arm look like ?

  3. #3
    GPRXP vspec1's Avatar
    Join Date
    Jun 2009
    Location
    Orlando, Fl.
    Posts
    1,517
    +1
    253
    need to get the head off, but from what I can see everything looks good. I did have a previous problem with an intake valve breaking and the piston came up and smacked the valve. Maybe it cracked the arm and it just finally came apart?

  4. #4
    dduck dduck1628's Avatar
    Join Date
    Apr 2007
    Location
    St Augustine FL
    Posts
    623
    Timing Chain?

  5. #5
    Richieb's Avatar
    Join Date
    Oct 2008
    Location
    Sydney, Australia.
    Posts
    1,001
    I'd be surprised if you didn't have bent, broken or binding with that set of valves.

    The rocker arms are very strong camparitively.

    Are the valve springs ok?

    Get a look inside. Use a mechanics endoscope with the mirror end fitted.

    They are the best thing you can get for cylinder problems as a quick look.
    One of the major manufacturers makes one, and it is superb for pumps, cylinder, under the engine... almost anywhere, and you can big screen it too!!

  6. #6
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
    Location
    Morgan City, LA
    Posts
    36,398
    +1
    2,524
    which valve train upgrade are you running? Were you hitting the limiter?

  7. #7
    GPRXP vspec1's Avatar
    Join Date
    Jun 2009
    Location
    Orlando, Fl.
    Posts
    1,517
    +1
    253
    Running the Ferrera valve springs, last time the head was off the spring pressure was 80 closed and about 120 open. These are stock 2008 valves. I was about 8,000 rpm when this happened. I'm running a Riva ecu. The timing chain is fine

  8. #8

    Join Date
    May 2005
    Location
    Minneapolis
    Posts
    763
    +1
    26
    I'll bet the previous touchdown stress the arm. Best luck.

  9. #9
    speedskixp's Avatar
    Join Date
    Feb 2008
    Location
    venice fl.
    Posts
    8,117
    +1
    120
    Quote Originally Posted by vspec1 View Post
    need to get the head off, but from what I can see everything looks good. I did have a previous problem with an intake valve breaking and the piston came up and smacked the valve. Maybe it cracked the arm and it just finally came apart?
    This would be my guess.

  10. #10
    GPRXP vspec1's Avatar
    Join Date
    Jun 2009
    Location
    Orlando, Fl.
    Posts
    1,517
    +1
    253
    Thanks Jim, You wouldnt have an extra laying around would you?

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. Trailer Problem - Any Ideas?
    By Jarrett in forum Sea Doo Open Discussion
    Replies: 27
    Last Post: 05-22-2013, 03:31 PM
  2. Broken rocker arm and who knows what else
    By icdoo in forum 4-Tec Performance
    Replies: 54
    Last Post: 05-05-2013, 08:53 PM
  3. New RR IC still not helping, any ideas ????
    By 1 FAST VE in forum 4-Tec Performance
    Replies: 30
    Last Post: 08-24-2005, 09:41 PM
  4. Was not impressed with new IC any ideas??
    By 1 FAST VE in forum 4-Tec Performance
    Replies: 21
    Last Post: 07-10-2005, 11:15 AM
  5. Any ideas for a club name??
    By SuzanGPR in forum Sea Doo Open Discussion
    Replies: 21
    Last Post: 05-14-2005, 08:26 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
  •