Crankshaft Main Bearing

2013 Chevrolet Express 1500 RWD V6-4.3LSECTION Crankshaft Main Bearing





Crankshaft Bearing Cap Bolt - Preferred Method

First Pass 20 Nm (15 lb ft)
Final Pass 73 degrees

Crankshaft Main Bearing Clearance

#1 - Production 0.02-0.05 mm (0.0008-0.0020 in)
#2, #3, and #4 - Production 0.028-0.058 mm (0.0011-0.0023 in)

#1 - Service 0.0254-0.05 mm (0.0010-0.0020 in)
#2, #3, and #4 - Service 0.025-0.063 mm (0.0010-0.0025 in)

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.