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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 160 (Engine Mechanical - 4.8L, 5.3L, 6.0L And 6.2L (3 Of 5)) >> Off-Vehicle Repair Instructions (1 Of 3) >> Engine Block Cleaning and Inspection >> Inspection Procedure

Inspection Procedure

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  1. Inspect the following components:
    • Cylinder walls for excessive scratches, gouging, or ring ridge
    • Cylinder bores for excessive ring ridge at the top of the cylinder
    • Coolant jacket for cracks
    • Valve lifter bores for excessive scoring or wear
    • Crankshaft bearing webs for cracks
    • Gasket sealing surfaces for excessive scratches or gouging

      Refer to Replacing Engine Gaskets .

    • Oil galleries for restrictions
    • Threaded bolt holes for damaged threads
    • Cylinder bores for excessive ring ridge at the top of the cylinder
  2. Measure the cylinder bores for an oversize condition:
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