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Thread: valve adjustment

  1. #1

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    valve adjustment

    From cylinder #1 @TDC on the compression stroke and adjusting #1 exhaust and intake, the crankshaft is rotated 360 degrees to get #4 @TDC...is this correct?

  2. #2



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    To adjust the valves each piston should be on TDC but you can adjust the valves in other ways. Look in the manuals and source info section for a first gen manual. The process is the same for nearly all engines. When the engine is on #1 TDC you can adjust other valves same with #2 and so on. But if you are unsure then the best way to do things is 1 at a time. You will rotate the crank 2 full times to make all the adjustments this way.
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  3. #3

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    with number 1 tdc adjust exhaust 1, 2,3 and Intake 1
    rotate crank 360 (Timing mark on cam will be off 180) adjust Exhaust 4 and intake 2,3,4

  4. #4

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    Are you guys setting the valves when the engine comes up to temperature? Or when it is cold? Also what size feeler gauge? I am told it is better to error on the loose side rather than to tight. Is this correct? Thanks

  5. #5

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    Quote Originally Posted by mikewarme View Post
    with number 1 tdc adjust exhaust 1, 2,3 and Intake 1
    rotate crank 360 (Timing mark on cam will be off 180) adjust Exhaust 4 and intake 2,3,4
    news to me but def. good to know. im curious, are da valves adjusted closer to "perfection" if done one cylinder TDC at a time? or makes no diff. and using the method u mentioned produces great end results as well.
    Last edited by ikeepzitclean; 12-27-2012 at 07:35 PM. Reason: revised; spelling

  6. #6

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    I may be a little late but I thought I'd post here anyways. How I do it is:
    From what I recall the gap (in inches) is between 0.0012-0.0024 on the intake and 0.0018-0.003 on the exhaust (I think I have the intake/exhaust the correct way around). I turned my crank pulley bolt until the rocker arm on #1 cylinder intake was as high as it would go, right before it starts falling and then I set the exhaust gap. Turned the pulley bolt until the Exhaust was as high as it would go and I set the Intake gap. Repeated that for the remaining cylinders.

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