LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 326 (Engine Mechanical - 3.0L (LGY) - Repair Instructions) >> Repair Instructions >> Crankshaft and Bearing Removal and Installation >> Visual Inspection

Visual Inspection

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
  1. Fig 1: Identifying Crankshaft Inspection Areas
    GM1866878Courtesy of GENERAL MOTORS COMPANY

    Perform the following visual inspections:

    • Inspect the crankshaft balancer bolt hole (1) for thread damage.
    • Inspect the crankshaft balancer mounting area (2) for damage.
    • Inspect the crankshaft keyway (3) for damage.
    • Inspect the oil pump drive flats (4) for damage.
    • Inspect the crankshaft main journals (5) for damage.
    • Inspect the crankshaft connecting rod journals (6) for damage.
    • Inspect the crankshaft oil passages (7) for obstructions.
    • Inspect the crankshaft main bearing thrust wall surfaces (8) for damage.
    • Inspect the crankshaft counterweights (9) for damage.
    • Inspect the crankshaft reluctor ring teeth (10) for damage.
    • Inspect the crankshaft rear main oil seal surface (11) for damage.
    • Inspect the crankshaft engine flex plate mounting surface (12) for damage.
    • Inspect the crankshaft pilot hole (13) for damage.
    • Inspect the crankshaft engine flex plate bolt holes (14) for thread damage.
  2. Repair or replace the crankshaft as necessary.