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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.0L V8 - VIN [H] >> Removal & Installation >> Timing Chain & Sprockets >> Installation

Timing Chain & Sprockets: Installation

  1. Install Woodruff key in crankshaft (if removed). Using Crankshaft Sprocket Installer (J-5590), install crankshaft sprocket. Install camshaft sprocket and timing chain, ensuring timing marks on sprockets are aligned. See Fig 1.
  2. Install and tighten camshaft sprocket bolts to specification. See TORQUE SPECIFICATIONS . Install gasket to front cover with gasket sealant. Install front cover and gasket.
  3. Apply RTV sealant to Woodruff keyway in crankshaft damper. Install crankshaft damper. Install crankshaft damper bolt and tighten to specification. See TORQUE SPECIFICATIONS . To install remaining components, reverse removal procedure.
Fig 1: Aligning Timing Marks
G91009Courtesy of GENERAL MOTORS CORP.
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