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  1. #1

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    Valve spring replacement without removing the head?

    Hi everyone, you have all been really kind with the helpful ideas and knowhow ways of getting it done!

    I am about to receive a nice new set of supertech valve springs and titanium retainers. (Christmas gift to myself)... Muuhhhaaa...

    After removing the rocker arm and replacing the valve springs with retainers...
    Will the rocker arm simply go back on as it was?
    Will I need to spin the engine to align for the cam locking tool to fit?
    Will the cam locking tool fit back in with the timing chain etc in already?

    Thank you in advance!


  2. #2
    Bob 1tommygunner1927's Avatar
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    Buy this from the GH performance store....can't get any easier than this:
    https://www.4-tecperformance.com/ind...3n02vn6umk9qm1

  3. #3
    ncdoo's Avatar
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    Good video here.
    No need to worry about the cam timing. You don't remove the cam sprocket, just the rocker arm assembly. Make sure to use new rocker arm bolts.

  4. #4

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    Thank you as usual!

    I guess the rocker arm should sit nice and even right across before bolting it down. You can see this happening on the youtube video as the engine is spun by hand.

  5. #5

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    So the Supertech springs 85lbs and titanium retainers are in. They look AWESOME, quality is unbelievable! I added an air intake girdle for insurance. Valves are high performance stainless intake and Inconel exhaust with single groove keepers. 30 hours ago, cylinder diameter measured to spec before and after honing for new piston rings. All bearings are 30 hours as well.

    I think everything is covered for a 137+4mm wheel with 60 injectors and tune.

    Any other areas that should require attention? Connecting rods have about 130 hours on them..

    Thank you.

  6. #6

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    Are the seadoo stage 2 cams worth installing with the ET137+4mm setup? Thanks

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