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  1. #1
    XLTNoob
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    Cylinder replacement quirks.

    So I'm putting my old powervalve assembly on my NEW cylinder, and I notice how black and sooty my old powervalve is..

    I cleaned it the best I could with some degreaser, Is this okay?
    It's slides freely, there's just some deposits still on the underside of the valve.


    Last edited by Jolly Roger; 08-10-2007 at 07:00 PM.


  2. #2
    sleeplessnMS's Avatar
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    I think you will be fine as long as they are freed up. Wont take long they will be all oily again. I just spray mine off with carb cleaner then wd 40 em and stick it in....

  3. #3
    XLTNoob
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    Okay, got the powervalve put in, it seems like the little sleeve sticks out of the hole some... Does this sound normal?

    Secondly, the cylinder I bought was missing that little tab thing inside the water jacket. I can transplant the one off of my old one.

    What's this for, anyway? Is there a specific placement it needs to have?


  4. #4

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    Quote Originally Posted by fuxxy View Post

    What's this for, anyway? Is there a specific placement it needs to have?

    It is a "sacrificial" anode. All of the electrolysis or corrosion that will occur will happen to it before electrolysis attacks your cylinder. Look at your other cylinders to see how it should be installed.

    You could have used a wire wheel or brush to clean up that valve to "like new".

  5. #5
    spud's Avatar
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    Good deal Fuxxy. Take your time and check everything twice. Use your manual diligently. Perfection is the key. The powervalve sleeve doesn't sit flush. It is probably about .100" proud. Powervalves when installed properly look like they are in upside down. Before you put the head back on turn your engine over by hand with the valves all the way down. This is just a sanity check for clearance. You should have about .030" between the rings and the powervalve.

    Good luck.

  6. #6
    XLTNoob
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    Quote Originally Posted by salty View Post
    You could have used a wire wheel or brush to clean up that valve to "like new".
    Okay, I cleaned it as best I could with a mild solvent..
    I was worried that I would nick up the valve with a wheel or brush, so I stuck with a stiff plastic bristle brush and some degreaser..

    Oh, that sacrifitial anode thing - I remember reading about that but didn't realize that's what it was.. I noticed in the other cylinders that it was just screwed in haphazardly, without any regard to direction or what it was touching - makes sense now.

    More questions to come as the engine comes together..

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