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  1. #1

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    How long does it take to lift the head and change valves and retainers on the 4-tech?

    Hi.

    Have a 2005 rxp with the old 72... valves and the old aluminium rotax retainers. Are now going to change the valves to the new riva or ferrera valves. And also put in titanium retainers. Running rotax racing ECU 8600rpm.

    How long does this work take approx. for a skilled seadoo mechanic?
    Thinking that this job you should be able to do without pulling the engine?

    Thanks


  2. #2
    If i knew,...I wouldn't ask sea-one's Avatar
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    you answered your own question,.. depends on how good the guy is? and im certain you dont have to pull the motor

  3. #3

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    Yes, but just looking for a ballpark figure,
    and lets say it´s a skilled mechanic.

  4. #4
    Moderator beerdart's Avatar
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    Aprox 4 hours start to finish.

  5. #5

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    Thanks, that was the kind of figure I was looking for.
    Does Anyone know if its possible to identify the CAM without taking the head of. Could you do this by just pulling the valve cover? The former owner told me it had a racing CAM.

  6. #6
    monaroman76's Avatar
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    Quote Originally Posted by argus View Post
    Thanks, that was the kind of figure I was looking for.
    Does Anyone know if its possible to identify the CAM without taking the head of. Could you do this by just pulling the valve cover? The former owner told me it had a racing CAM.
    Well the cam sits above the head, so there would certainly be no need to take the head off.

  7. #7
    West Texas RXP skoepp's Avatar
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    The oem cams are numbered on the gear end of shaft.
    Just remove the plastic cover (04-05) on end of head and look at the numbers on cam shaft.

    If your looking to save some coin, pull the head yourself (could even remove rocker and cam shaft) and take it to have work done then reinstall.

  8. #8

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    Thanks. Did that, but did not see any number, on the gear (chain) wheel there is stamped 254302, but don't think this is what I'm looking for. On the actual shaft end there is no number. If it is a RR CAM where is the number stamped.

    Thanks.

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