Hmmm.. time for some crane gold's I guess
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Hmmm.. time for some crane gold's I guess

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    Senior Member H20MOFO's Avatar
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    Default Hmmm.. time for some crane gold's I guess

    My day was cut a little short today....broke a comp cam chrome moly rocker. The reason for my post is I'm not positive it's the rockers fault. The retainer on this particular ex. valve has/had hit the rocker. Not sure if it did that when it let go, or if I have other issues. Should the stud girdle be pretty uniform on the trunions(I guess thats what the stud extension dealios are called). I can put up a pic of mine, they don't really look uniform to me. Any suggestions????
    Another Hot Boat refugee

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    Senior Member VDRIVERACING's Avatar
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    Crane closed up recently and was just bought by S&S Cycle. Don't rule out Isky rockers. Their rockers are among the best.

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    Some guy obnoxious001's Avatar
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    Quote Originally Posted by VDRIVERACING View Post
    Crane closed up recently and was just bought by S&S Cycle. Don't rule out Isky rockers. Their rockers are among the best.
    I agree on the Isky rockers.

    Kreg,,, my first guess is that something else caused your rocker to fail, those have a pretty good reputation I think.

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    Senior Member H20MOFO's Avatar
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    Quote Originally Posted by obnoxious001 View Post
    I agree on the Isky rockers.

    Kreg,,, my first guess is that something else caused your rocker to fail, those have a pretty good reputation I think.
    Thanks Barry ...what should I look for anyone?? Checked the lash a couple of weeks ago. Looking at the bottom of this broken piece of rocker, it looks like it's leaning to the broken side. I haven't seen the other side yet though.
    Another Hot Boat refugee

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    steelcomp was here
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    Ditto on the Iskys...about the only aluminum rocker I'd use in an endurance app.
    H20...there could be a number of things going on, but yes...all the adjusters should be very close to being the same, except to say the intakes may look a little different tnan the exhausts, but you should be able to lay a straight edge across all the intakes, and then across all the exhausts. If you can see a visual difference, then something's out of adjustment.
    If everything was adjusted correctly, and you have rocker to retainer interfearance, then it should be that way on all of them. If none of the others are hitting, my guess would be the contact came with the failure.
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    Senior Member Morg's Avatar
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    Have you taken the rocker out to inspect?

    Those have a replacement warranty BTW.

    After I broke one, it was real evident why it broke. Looked a whole lot like what yours does, look at the metal where it broke.
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    steelcomp was here
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    Quote Originally Posted by Morg View Post
    Have you taken the rocker out to inspect?

    Those have a replacement warranty BTW.

    After I broke one, it was real evident why it broke. Looked a whole lot like what yours does, look at the metal where it broke.
    Beat me to it, but that was my next question. Where did the rocker break, and what does it look like? Maybe post a pic?
    ETA: How long did it run before it failed?
    Last edited by scott foxwell; 07-12-2009 at 05:00 PM.
    If God is your co-pilot, change seats!
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    Senior Member H20MOFO's Avatar
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    Quote Originally Posted by Morg View Post
    Have you taken the rocker out to inspect?

    Those have a replacement warranty BTW.

    After I broke one, it was real evident why it broke. Looked a whole lot like what yours does, look at the metal where it broke.
    I haven't pulled what is left of the rocker yet. I've already seen the bodies have a lifetime guarantee. Not going there unless I think it's their fault/not my fault. I can put up some pics of the broken piece, what should I look for on the rocker???? Btw the broken piece was off the bottom of the rocker.
    Another Hot Boat refugee

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    Senior Member Morg's Avatar
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    Quote Originally Posted by H20MOFO View Post
    I haven't pulled what is left of the rocker yet. I've already seen the bodies have a lifetime guarantee. Not going there unless I think it's their fault/not my fault. I can put up some pics of the broken piece, what should I look for on the rocker???? Btw the broken piece was off the bottom of the rocker.
    Mine had a flaw or pit in the casting.

    Mine was also off the bottom of the trunnion.
    It is supposed to be hard, if it wasn't hard everyone would do it. The "hard" is what makes it great. - Jimmy Dougan

    It's a celebration bitche's - Rick James

    Akita's & Boats: http://s255.photobucket.com/albums/hh149/K-Morg/

    Quote Originally Posted by Quickjet View Post
    Ok....I'm retarted....so what...
    Quote Originally Posted by Cole Man II View Post
    Tony, Tony, Tony....

    If dragboats were gay, that would make you Harvey Milk...
    Quote Originally Posted by steelcomp View Post
    Well if you want to make up a bunch of numbers to be right, then yes, that works.

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    Nice set of Crower's for sale in the Part's Spam section..

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    Senior Member BIGCHRIS's Avatar
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    Quote Originally Posted by H20MOFO View Post
    My day was cut a little short today....broke a comp cam chrome moly rocker. The reason for my post is I'm not positive it's the rockers fault. The retainer on this particular ex. valve has/had hit the rocker. Not sure if it did that when it let go, or if I have other issues. Should the stud girdle be pretty uniform on the trunions(I guess thats what the stud extension dealios are called). I can put up a pic of mine, they don't really look uniform to me. Any suggestions????
    is it my computer or is the valve stemm tip eat up

  14. #12
    Senior Member H20MOFO's Avatar
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    The valve stem isn't great, but that pic makes it look a little worse. I'll stick up another pic. Like I said, it looks like this retainer was hitting the rocker, what likely would cause that????
    Last edited by H20MOFO; 07-12-2009 at 07:30 PM.
    Another Hot Boat refugee

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    Senior Member H20MOFO's Avatar
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    Not only does the valve stem look not so purdy, note the racing stripe on the side of the roller tip.
    Another Hot Boat refugee

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    Senior Member Morg's Avatar
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    Quote Originally Posted by H20MOFO View Post
    The valve stem isn't great, but that pic makes it look a little worse. I'll stick up another pic. Like I said, it looks like this retainer was hitting the rocker, what likely would cause that????
    When it started to break it rolled over & hit the retainer.
    It is supposed to be hard, if it wasn't hard everyone would do it. The "hard" is what makes it great. - Jimmy Dougan

    It's a celebration bitche's - Rick James

    Akita's & Boats: http://s255.photobucket.com/albums/hh149/K-Morg/

    Quote Originally Posted by Quickjet View Post
    Ok....I'm retarted....so what...
    Quote Originally Posted by Cole Man II View Post
    Tony, Tony, Tony....

    If dragboats were gay, that would make you Harvey Milk...
    Quote Originally Posted by steelcomp View Post
    Well if you want to make up a bunch of numbers to be right, then yes, that works.

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