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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 1.2L (LIH)) >> Repair Instructions >> Timing Belt Lower Cover Replacement

Timing Belt Lower Cover Replacement

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Special Tools

Equivalent regional tools: Special Tools

Removal Procedure

  1. Crankshaft Balancer - Remove - Crankshaft Balancer Replacement 
  2. GM5367763Courtesy of GENERAL MOTORS COMPANY

    Drive Belt Tensioner Bolt (1) - Remove [2x]

  3. Drive Belt Tensioner (2) - Remove
  4. GM5359974Courtesy of GENERAL MOTORS COMPANY

    Timing Belt Lower Cover Bolt (1) - Remove [9x]

  5. Loosen the timing belt lower cover carefully from the engine, use a suitable tool at the 2 locations (2, 3)
  6. GM5359975Courtesy of GENERAL MOTORS COMPANY

    Timing Belt Lower Cover (1) - Remove and DISCARD

Installation Procedure

    NOTE:

    DO NOT allow cleaning solvents to come in contact with either the timing belt or oil pump belt.

  1. Clean all sealing surfaces.
  2. GM5359982Courtesy of GENERAL MOTORS COMPANY

    Ensure proper use of room temperature vulcanizing (RTV) sealant. - Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant 

  3. NOTE:
    • All sealing surfaces must be free of contamination prior to applying the sealant.
    • Installation and final torque specification must be completed within 10 minutes of applying the sealant.
  4. Apply a 4 mm (0.16 in) bead of sealant (1) to the timing belt lower cover. Adhesives, Fluids, Lubricants, and Sealers 
  5. GM5359984Courtesy of GENERAL MOTORS COMPANY

    EN-52432  Front Cover Seal Installer (1) @ Crankshaft - Install

  6. GM5359985Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Use EN-52483  Cover Installation Guide Pins (2) to help align the cover with the locating pins and the EN-52432  Front Cover Seal Installer (3).

    EN-52483  Cover Installation Guide Pins (2) - Install

  7. Timing Belt Lower Cover (1) - Install NEW
  8. EN-52483  Cover Installation Guide Pins (2) - Remove
  9. Fig 1: Identifying Engine Front Cover Bolts With Tightening Sequence
    GM5359986Courtesy of GENERAL MOTORS COMPANY

    Engine Front Cover Bolt (1) - Loosely install [9x]

  10. Engine Front Cover Bolt (1) - Tighten in sequence [9x]
    1. First Pass: 4 N.m (35 lb in)
    2. Final Pass: 8.5 N.m (75 lb in)
  11. EN-52432  Front Cover Seal Installer (2) @ Crankshaft - Remove
  12. GM5367763Courtesy of GENERAL MOTORS COMPANY

    Drive Belt Tensioner (2) - Install

  13. Drive Belt Tensioner Bolt (1) - Install and tighten 22 N.m (16 lb ft) [2x]
  14. Crankshaft Balancer - Install - Crankshaft Balancer Replacement