Hi,
It sounds like you are adjusting valve lash or valve clearance. If you look at the attachments below, they are the directions specific to this vehicle.
When you do this, make sure not to overtighten the lifters. If that happens, it will hold the valve open, and you will lose compression.
Take a look and let me know if it helps or if you have other questions.
Take care,
Joe
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Tuesday, April 26th, 2022 AT 2:18 PM