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  1. #1
    QATAR RXP TEAM qatar2000kk's Avatar
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    Thumbs down My Experience with New Ferrea Light weight Valves (Gen II)

    I used in previous the Ferrea Light weight valves … Old Gen thay are ok ... but I decide to go with the new Gen II … After I install them I had sound like the valve hitting the Piston … I took off the cylinder engine off and check and there is to signe of valves hitting the piston and I install the head aging and install new rocker arm .. Same problem … I decide to go back to the OEM valves the one I hade before and every thing goes back to normal and no sound at all …

    Any one out there had same experience with the ferrea Gen II valves?


  2. #2
    JESUS G's Avatar
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    Did you install normal size or oversize?

  3. #3
    deansta's Avatar
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    Quote Originally Posted by qatar2000kk View Post
    I used in previous the Ferrea Light weight valves … Old Gen thay are ok ... but I decide to go with the new Gen II … After I install them I had sound like the valve hitting the Piston … I took off the cylinder engine off and check and there is to signe of valves hitting the piston and I install the head aging and install new rocker arm .. Same problem … I decide to go back to the OEM valves the one I hade before and every thing goes back to normal and no sound at all …

    Any one out there had same experience with the ferrea Gen II valves?

    sound like you put in oversize not the normal size .....check that they are the same size as your OEM ones...

    im just about to order a set....keep us posted

  4. #4
    Richieb's Avatar
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    With oversize, you have to mill out a detent in the piston crown.

    It's not just as easy as head work only.

    The noise you may hear is the slapping of the lifters against the cam if the engine is not running, and no oil pressure.

    Of course, make sure you have it all timed correctly.

  5. #5
    2006 Turbo RXP boBO's Avatar
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    Quote Originally Posted by qatar2000kk View Post
    I used in previous the Ferrea Light weight valves … Old Gen thay are ok ... but I decide to go with the new Gen II … After I install them I had sound like the valve hitting the Piston … I took off the cylinder engine off and check and there is to signe of valves hitting the piston and I install the head aging and install new rocker arm .. Same problem … I decide to go back to the OEM valves the one I hade before and every thing goes back to normal and no sound at all …

    Any one out there had same experience with the ferrea Gen II valves?


    As I told you before, your machine shop must do 3 degree angle job

  6. #6
    westy's Avatar
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    what happend is it fixed? what was done incorrect??

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