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Old 04-25-2006, 07:05 PM   #1
Wolf
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Valve adjustment

I have a 88 GMC K1500 with a 5.7L and I just finished head gaskets in it.
After adjusting the valves by the book, the right side has a ticking sound.
I followed the servive manual, set to number one firing and adjust the following, Exh. 1,3,4,8 Int. 1,2,5,7. Turn motor one turn and adjust Exh. 2,5,6,7 Int.3,4,6,8.
I turned rocker nut one full turn after lash was gone.

Can someone tell me what the ticking might be?

Thanks
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Old 04-26-2006, 10:16 PM   #2
corn
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Re: Valve adjustment

After you ran it you should do it all over again. Does it sould like its coming from only one or both sides?
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Old 04-27-2006, 03:55 AM   #3
oldyeller
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Re: Valve adjustment

its messy, but I usually adjust them while its running for a final checkout. if you have a extra valve cover cut the top out and it will contain the oil better.

most of the time I only adjust 1/2 turn after the tick is gone, there was a issue years ago with the cams loosing their lobes when adjusted to 1 turn, I changed to a 1/2 turn and done so ever since.
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Last edited by oldyeller; 04-27-2006 at 03:58 AM.
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Old 04-27-2006, 06:05 PM   #4
Wolf
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Re: Valve adjustment

It's only coming from the right side. The left side sounds great!
I have adjusted valves while the motor was running before, but I felt I would try it with it not running.
So, I should adjust them again?

Thanks
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Old 04-27-2006, 08:15 PM   #5
piecesparts
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Re: Valve adjustment

I would back each one off a little until they click and then tighten until the noise stops and then turn a 1/4 turn more. This is done while the motor is running, and you do one at a time.
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