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Thread: New ole guy

  1. #16
    Electronic Ignition!
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    Feb 2018
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    Sorry for delayed post, been buzy with docs&hosp. but i did the running valve adjustment & gave it a blip after i was done & it responded.

    Sorry for delayed post, been dealin with docs&hosp. but got running valve adjustment done & gave throttle a blip before i shut it off & it responded. Today i hope to remount the real valve cover, replug everything & c how it runs. I think the used roller lifters had a home at 1 turn & i had them set at 1/2 like the hp. guys suggest. Ill let results known soon.

  2. #17
    Electronic Ignition!
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    Feb 2018
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    I just received a new set of genuine GM lifters yesterday & i will post the results after they are installed. Thanks for your interest.

  3. #18
    LT1 specialist steveo's Avatar
    Join Date
    Aug 2013
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    4,002
    setting up hydraulic lifters can definitely be bitchy the first time. too loose shouldn't affect how the engine runs, but if they're way too loose they'll be noisy or smash the clip out. if your engine wouldn't rev up, you probably had one too tight, maybe because it was collapsed and you couldn't tell you were adding too much preload.

    one thing to consider is that you should set them up right now with the intake manifold off, you can find cam base circle and zero lash so easily when you're staring at the lifters themselves.

    you may even consider making yourself a round feeler gauge with a bent tip that you can put between the clip and the lifter to actually measure your lash, it should make things really obvious. i think 0.040" would be a good starting point for most sbc lifters but you might want to look that up.

  4. #19
    Electronic Ignition!
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    Lifters

    Thankx for the tip Steveo. Never heard of adjusting lifters that way! Nvr too old to learn. Makes sense to me. The running adjustment i did, didnt go as usual as some clacking was present when done & afterwards died on test ride up a steep hill.

  5. #20
    Administrator
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    i think 0.040" would be a good starting point for most sbc lifters but you might want to look that up.
    Hydraulic lifters are intended to be preloaded. .001" is a "loose" lifter preload setup for racing. Typically they'd be set around .015 to .020 based on commonly found internet instructions. (1/2 turn after 0 lash on 3/8 X 24 TPI results in 1/2 of 1/24" or 1/48" movement, equal to .0208"). Most lifter manufacturers actually recommend .020" -.040".
    Last edited by 1project2many; 03-26-2018 at 02:19 AM. Reason: Like my paycheck, there were too many zeros before a nonzero digit

  6. #21
    Electronic Ignition!
    Join Date
    Feb 2018
    Age
    73
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    Thankx for info One Project. Cant really do anything outside between 8.5" of sno the first day of spring & now 5 days of rain. Think ill go for .020 preload when i get a break frm the weather. Thankx for everyones imput.

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