Camshaft, Engine

2003 Chevrolet Malibu V6-3.1L VIN JSECTION Camshaft, Engine
Camshaft Lobe Lift - Intake and Exhaust 6.9263 mm (0.2727 inch)
Journal Diameter 47.45 - 47.48 mm (1.868 - 1.869 inch)
Camshaft Bearing Bore Diameter-Front and Rear 51.03 - 51.08 mm (2.009 - 2.011 inch)
Camshaft Bearing Bore Diameter-Middle #2 and #3 50.77 - 50.82 mm (1.999 - 2.001 inch)
Camshaft Bearing Inside Diameter 47.523 - 47.549 mm (1.871 - 1.872 in)
Journal Clearance 0.026 - 0.101 mm (0.001 - 0.0039 in)
Journal Runout-Max 0.025 mm (0.001 in)
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.