Pushrod length checker with hydraulic lifters? - FirebirdV6.com/CamaroV6.com Message Board

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  • Pushrod length checker with hydraulic lifters?

    What's the best way to use a pushrod length checker with hydraulic lifters? The height of the lifter will change once the engine starts, so the results can't be accurate. Is there an easy way to do it, or do you need to swap in a solid lifter?

    I'm thinking my pushrods might be too long. Had some ticking the last year that's driving me crazy, and I'm surprised at how far the valves are being opened when I torque the rockers down.
    Matt
    1998 Mystic Teal Camaro M5
    Whisper Lid, Pacesetter Headers, Catco Cat, Dynomax Super Turbo, B&M Shifter, BMR STB, LSD, P&P Intakes, GT2 Cam, Comp OE Lifters, 1.7 Roller Rockers, Pushrods, SSM Heads, DHP PowrTuner.

  • #2
    The height of the lifters shouldn't change when the engine is running however, on the #1 cylinder, or whichever cylinder you want to use, roll it over until the exhaust lifter just barely opens. Put the length checker on the intake side and you just adjust the length until you have the amount of preload you want. After you get that, pull the checker out and check what length it is and order that long of a pushrod.
    <b>Black</b> 1998 Pontiac <i>Firebird</i> A-4 swap<br />271.4rwhp/259.4rwtq NA<br />13.30@102.44 <br /><a href=\"http://www.freewebs.com/wickedsix98\" target=\"_blank\">www.freewebs.com/wickedsix98</a>

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