Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 21
  1. #1
    Vern's Avatar
    Join Date
    May 2005
    Location
    Grand Haven, MI
    Posts
    3,594
    +1
    128

    200 hrs - change valves or head gasket?

    I have very close to 200 hours on my 2005 RXP, mods in signature. Ran great all year long, but since I am down for the winter, would it make sense to put in new valves or a new head gasket? Not looking forward to doing it, but would rather do it over the winter if needed ... input? Summer is so short in Michigan I try to do all reliability upgrades over the winter (did the flywheel bolts last winter among other things).


  2. #2

    valves

    Quote Originally Posted by Vern View Post
    I have very close to 200 hours on my 2005 RXP, mods in signature. Ran great all year long, but since I am down for the winter, would it make sense to put in new valves or a new head gasket? Not looking forward to doing it, but would rather do it over the winter if needed ... input? Summer is so short in Michigan I try to do all reliability upgrades over the winter (did the flywheel bolts last winter among other things).

    i am doing valves this winter too many scary stories about the 04 -05 valves being prone to failure.


  3. #3

    Join Date
    Jun 2005
    Location
    rome ga
    Posts
    938
    +1
    20
    If you are running high boost you want solid exhaust valves. The 03-06 are hollow gas filled and will eventually fail especially if you run on the rev limiter.
    Big cams and high rev ecu tend to hurt intake valves. Strongest lighest is a good approach.

  4. #4
    ecpChris's Avatar
    Join Date
    Jul 2007
    Location
    ocean county nj
    Posts
    2,912
    +1
    427
    What about timing chain? when is good time to replace these

  5. #5
    Vern's Avatar
    Join Date
    May 2005
    Location
    Grand Haven, MI
    Posts
    3,594
    +1
    128
    Anybody? I am still debating about head gasket & timing chain replacement ... it does seem that most timing chain failures follow ceramic washers going thru the motor. If I do pull the head I will do valves and head gasket, just not sure if it is worth doing with my hours and setup. I have had the motor out, but have not taken the head off, is it a big/nasty job?

  6. #6
    REID2168's Avatar
    Join Date
    Jun 2007
    Location
    My House
    Posts
    8,156
    +1
    241
    Quote Originally Posted by Vern View Post
    Anybody? I am still debating about head gasket & timing chain replacement ... it does seem that most timing chain failures follow ceramic washers going thru the motor. If I do pull the head I will do valves and head gasket, just not sure if it is worth doing with my hours and setup. I have had the motor out, but have not taken the head off, is it a big/nasty job?
    its obviously your $$$$$ Vern but if i went to that kind of trouble i would do the chain, valves and the head gasket just for piece of mind with that many hours on the motor.....throw a port job on that head too...good luck!

  7. #7
    Matthew K ReDevilRXP's Avatar
    Join Date
    Aug 2006
    Location
    Lemont, IL
    Posts
    2,477
    Quote Originally Posted by Vern View Post
    Anybody? I am still debating about head gasket & timing chain replacement ... it does seem that most timing chain failures follow ceramic washers going thru the motor. If I do pull the head I will do valves and head gasket, just not sure if it is worth doing with my hours and setup. I have had the motor out, but have not taken the head off, is it a big/nasty job?
    I don't think its bad at all. Just make sure you un tighten the head bolts opposite of the tightening sequence. If i were you i would replace the whole deal maybe even get a head job done while its off. Valves, head gasket, Valve guide seals, ect...

    Its like changing the timing belt on a car, you might as well change the water pump even though its not bad while your in there just to be done with it.

  8. #8
    rxp_boy's Avatar
    Join Date
    May 2005
    Location
    Malta
    Posts
    251
    I have an 04 and modding it

    I am putting new valves and headgasket , I have 140hrs

    I seen engines with exhaust valves dropping here on 04/05, beleive me you dont want to know !!! SO PLEASE CHANGE THE VALVES !!!

  9. #9
    Vern's Avatar
    Join Date
    May 2005
    Location
    Grand Haven, MI
    Posts
    3,594
    +1
    128
    My summers are very short, so I prefer to do work like this over the winter. My main question was whether I tear it down even tho it is running great ... if I do, I will replace the valves, deck the head, new head gasket, etc. The camchain too if I can get that off without tearing the motor all apart. It sounds like it might be smarter to do this now rather than run it another summer and see if I have any issues ...

  10. #10
    Banned User
    Join Date
    Dec 2006
    Location
    Crest Hill, IL
    Posts
    9,512
    +1
    215
    Just clicked 150 on my 04 yeaterday...it looks like it will be coming out this winter...

Page 1 of 3 1 2 3 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. WTB 07 or later Exhaust Valves or Head
    By mxl16 in forum Sea Doo Classifieds
    Replies: 3
    Last Post: 12-28-2009, 08:35 PM
  2. WTB head gasket, valves, bolts, etc
    By Vern in forum Sea Doo Classifieds
    Replies: 1
    Last Post: 01-14-2009, 08:12 PM
  3. Which head gasket stock or copper?
    By mstennes in forum 4-Tec Performance
    Replies: 6
    Last Post: 07-19-2008, 08:22 PM
  4. Replies: 1
    Last Post: 06-29-2006, 06:25 PM
  5. Rotax Racing Head Gasket good or bad
    By Jrsrxp in forum 4-Tec Performance
    Replies: 2
    Last Post: 09-06-2005, 08:33 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
  •