Page 1 of 2 1 2 LastLast
Results 1 to 10 of 12
  1. #1

    wsm valve failure

    Hey . i have a 215 hp rxp and did up the engine using wsm valves. The exaust valve snapped and trashed the engine after a few hours.

    Is this happen often?


  2. #2
    formerly Gold06RXP Turbo Nick's Avatar
    Join Date
    May 2007
    Location
    Dayton, OH
    Posts
    2,095
    +1
    97
    WSM must make shitty valves. The stock ones are the best IMO.

  3. #3
    The most interesting man in the world. Nils888's Avatar
    Join Date
    Jun 2005
    Location
    California
    Posts
    4,230
    +1
    1,043
    I love the way every one points the finger at the valve being bad.

    I have seen every manufacture of valves break. Including stock.

    What most people fail to take into consideration is. WHY DID THE VALVE BREAK!!!

    From my experience. Most of the valve failure I have seen in seadoo is from running lean and over heating the exhaust valve witch results in valve stem expanding and sticking in the valve guide and getting hit by the piston.

    Another cause is from low valve spring pressure. This causes Valve float or bounce at high RPM. Plus running lean. The valve dose not have a chance.

    Almost all of the valve failure I have seen has been an exsaust valve.


    And the third reason for the valve failure is!!! Camshaft timing set incorrectly Yes I have see this many times!!!!

  4. #4
    Moderator Snoman's Avatar
    Join Date
    Apr 2006
    Location
    South Chicagoland
    Posts
    14,688
    +1
    846
    Quote Originally Posted by Nils888 View Post
    I love the way every one points the finger at the valve being bad.

    I have seen every manufacture of valves break. Including stock.

    What most people fail to take into consideration is. WHY DID THE VALVE BREAK!!!

    From my experience. Most of the valve failure I have seen in seadoo is from running lean and over heating the exhaust valve witch results in valve stem expanding and sticking in the valve guide and getting hit by the piston.

    Another cause is from low valve spring pressure. This causes Valve float or bounce at high RPM. Plus running lean. The valve dose not have a chance.

    Almost all of the valve failure I have seen has been an exsaust valve.


    And the third reason for the valve failure is!!! Camshaft timing set incorrectly Yes I have see this many times!!!!


  5. #5
    jbombino's Avatar
    Join Date
    Jun 2007
    Location
    Hialeah, FL
    Posts
    636
    +1
    17
    I have also seen people not warming the ski and give chance to lubricate the cylinder head. It is importan to warm the ski before going max RPM.

  6. #6
    GPRXP vspec1's Avatar
    Join Date
    Jun 2009
    Location
    Orlando, Fl.
    Posts
    1,517
    +1
    253
    Quote Originally Posted by Nils888 View Post
    I love the way every one points the finger at the valve being bad.

    I have seen every manufacture of valves break. Including stock.

    What most people fail to take into consideration is. WHY DID THE VALVE BREAK!!!

    From my experience. Most of the valve failure I have seen in seadoo is from running lean and over heating the exhaust valve witch results in valve stem expanding and sticking in the valve guide and getting hit by the piston.

    Another cause is from low valve spring pressure. This causes Valve float or bounce at high RPM. Plus running lean. The valve dose not have a chance.

    Almost all of the valve failure I have seen has been an exsaust valve.


    And the third reason for the valve failure is!!! Camshaft timing set incorrectly Yes I have see this many times!!!!

    This is a very good description !!!

  7. #7

    valve

    so what caused the carnage?

  8. #8
    Any other experiences with WSM valves? I am considering using them. Also are they sodium filled like the stockers?

  9. #9
    Booner76's Avatar
    Join Date
    Oct 2009
    Location
    Stirling ,Ont.
    Posts
    222
    +1
    5
    Another reason for exhaust valve failed..so I have been told.....Is not winterizing properly.Making sure that you fog the valves well before winter storage. (Prevent rust on the valves caused by humidity build up in the exhaust system.

    I fog each winter by both removing plugs and fogging and removing fuel injectors and fogging while cranking motor.(throttle depressed fully)

    My 2 cents

    Cheers

  10. #10

    wsm valve failure

    Early days we used a few of the wsm stainless valves and found they were tuliping from the heat. I'm not sure if they've changed but the WSM dealer sells a different valve that I only had 1 issue but was a bad injector that damaged them.

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. Schrader Valve Failure MSX 140
    By SMOKEWAGON in forum MSX/Matrix
    Replies: 27
    Last Post: 03-10-2015, 07:27 AM
  2. What causes valve failures on Inconel Valves?
    By snowrunner in forum 4-Tec Performance
    Replies: 13
    Last Post: 06-26-2009, 05:25 PM
  3. Cylinder down - Billet Valve Failure
    By CanadianGPR in forum Yamaha PWC Performance (2-stroke)
    Replies: 7
    Last Post: 06-19-2008, 11:13 AM
  4. Gas valve failure
    By Duke in forum Yamaha PWC Performance (2-stroke)
    Replies: 27
    Last Post: 01-27-2008, 08:58 AM
  5. S/S Valve Failure!
    By ActionR32 in forum 4-Tec Performance
    Replies: 26
    Last Post: 09-30-2006, 10:30 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
  •