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valve/lifter adjustment

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Old Sep 10, 2013 | 10:22 PM
  #1  
gcusmano74's Avatar
gcusmano74
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Default valve/lifter adjustment

Is there any reason I couldn't adjust the hydraulic lifters at each cylinder's TDC? Chevrolet says do half the valves at #1 TDC and the rest at #6 TDC.
I was going to leak down the engine and figured I would do both at the same time.
Thanks in advance.
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Old Sep 11, 2013 | 12:16 AM
  #2  
my 76 ray's Avatar
my 76 ray
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From: Hinckley OH
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Both the intake and the exhaust valve are closed at TDC. The reason Chevrolet says to do the ones they say when #1 is at TDC is that both the valves on those cylinders are also closed. Likewise for when #6 is at TDC.

Keep in mind that all pistons are at TDC twice, once on the compression stroke and once on the exhaust stroke. You must adjust the rockers/lifters when the piston is on the compression stroke.

So, yes, you can adjust then at each cylinder's TDC as long as it is on the compression stroke.
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Old Sep 11, 2013 | 03:35 PM
  #3  
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From: Laguna Niguel California
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It saves you time, only having to adjust at two rotation positions instead of eight.
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Old Sep 11, 2013 | 03:52 PM
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I always adjust what valves are closed (to be sure of this I adjust the ones opposite of the valve that is opening) and then rotate 360 and adjust the rest.
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