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Thread: cam break in

  1. #1
    Senior Member EXPERT BUILDER
    Join Date
    Jul 2009
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    nekoosa wisconsin
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    308

    cam break in

    when doing my cam break in i know i need about 2000 rpms at about 20 min
    can i just set the idle high and let it run or do i have to manualy do it with my foot

    thanks logan

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    Nov 2005
    Location
    Mobile,Al.
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    127

    cam

    If it's a flat tappet cam,I like to vary the rpm's and not let it stay in the same rpm range for a long period of time 1800 to 2500 or so.I if it's a solid roller,5 minutes bring up to temp,shut it down and check fluid levels,look for leaks and reset lash and timing.then straight to the race track.!!!!LOL

  3. #3
    Senior Member EXPERT BUILDER
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    Jul 2009
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    nekoosa wisconsin
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    ok it is a flat tappet thanks for the info

  4. #4
    Senior Member RACING JUNKIE
    Join Date
    Dec 2008
    Location
    Sugar Hill, GA
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    1,365

    Re: cam

    Quote Originally Posted by contagious
    If it's a flat tappet cam,I like to vary the rpm's and not let it stay in the same rpm range for a long period of time 1800 to 2500 or so.I if it's a solid roller,5 minutes bring up to temp,shut it down and check fluid levels,look for leaks and reset lash and timing.then straight to the race track.!!!!LOL
    X2 FLAT TAPPET - Vary the RPM to get oil splashed up on the lower cylinder walls/ inside piston skirts. Solid rollers are broken in in 60 seconds / they work or they have failed.
    Dave
    http://www.racingjunk.com/profile/343797
    "All that is necessary for the triump of evil is for good men to do nothing" Edmund Burke

  5. #5
    Member CRAFTSMAN
    Join Date
    Dec 2010
    Location
    anchorage alaska
    Posts
    56
    Dont forget to take the long bolt that holds the fuel pump rod in place and install the short bolt as a plug to prevent oil from spraying out the front of the block. learned that one the sucky way.
    This wouldn't have happened if only you had been paying attention!


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