Define 2nd torquing of headbolts

2009 HUMMER H2
114,000 MILES • 6.2L • V8 • 4WD • AUTOMATIC
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HUMMERDUTY
I'm not familiar with the 2nd and 3rd reference of tightening in degrees. Is there a tool or diagram that is used?
Aug 4, 2025 at 11:39 PM
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STRAILER
  • ✓ASE Certified Mechanic
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Sure, here is a video that show how to do the angle torque.

https://youtu.be/p4krsFVguD0?si=ZFgrz5I6GAyUCjZ0&t=834

Let us know if you need anything else.
Aug 5, 2025 at 10:13 AM
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