LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2015 >> Verano Premium, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 2.4L (Lea)) >> Repair Instructions - Off Vehicle >> Exhaust Manifold Installation (LAF, LEA, or LUK)

Exhaust Manifold Installation (LAF, LEA, or LUK)

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Exhaust Manifold Studs
    GM412550Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  1. Install new exhaust manifold studs and tighten to 10 N.m (89 lb in).
    2. Fig 2: Secondary Air Injection Pipe Assembly
    GM2512855Courtesy of GENERAL MOTORS COMPANY
  2. Install the secondary air injection pipe assembly (1).
  3. Install the secondary air injection pipe assembly bolts (2) and tighten to 10 N.m (89 lb in).
    4. Fig 3: Exhaust Manifold Components
    GM2206983Courtesy of GENERAL MOTORS COMPANY
  4. Install the exhaust manifold gasket (3).
  5. Install the exhaust manifold (2) to the cylinder head.
  6. Install NEW exhaust manifold to cylinder head retaining nuts (1) finger tight.
    7. Fig 4: Exhaust Manifold Bolt Tightening Sequence
    GM2210038Courtesy of GENERAL MOTORS COMPANY
  7. Tighten the NEW exhaust manifold to cylinder head retaining nuts two passes in sequence:
    1. Tighten first pass in sequence to 14 N.m (124 lb in).
    2. Tighten final pass in sequence to 14 N.m (124 lb in).
    8. Fig 5: Block Heater
    GM2206982Courtesy of GENERAL MOTORS COMPANY
  8. Install the block heater (1). Tighten the bolt to 10 N.m (89 lb in).
    9. Fig 6: Exhaust Manifold Heat Shield
    GM2206981Courtesy of GENERAL MOTORS COMPANY
  9. Install the exhaust manifold heat shield (1).
  10. Install the exhaust manifold heat shield bolts and tighten to 9 N.m (80 lb in).
    11. Fig 7: Oxygen Sensor
    GM2206980Courtesy of GENERAL MOTORS COMPANY
  11. Coat the threads of the oxygen sensor (1) with antiseize. Refer to Adhesives, Fluids, Lubricants, and Sealers .
  12. Install the oxygen sensor and tighten to 42 N.m (31 lb ft).
    13. Fig 8: Secondary Air Injection Studs
    GM2512851Courtesy of GENERAL MOTORS COMPANY
  13. Install the secondary air injection studs (3 and 4) and tighten to 10 N.m (89 lb in).
  14. Install the secondary air injection valve assembly (1) with a NEW gasket (2).
    15. Fig 9: Secondary Air Injection Bolts And Nuts
    GM2512844Courtesy of GENERAL MOTORS COMPANY
  15. Install the secondary air injection bolts (2 and 3) and nuts (1).
    • Tighten the secondary air injection assembly to cylinder head bolts (3) to 22 N.m (16 lb ft).
    • Tighten the secondary air injection assembly to pipe assembly bolts (2) to 10 N.m (89 lb in).
    • Tighten the secondary air injection assembly nuts (1) to 22 N.m (16 lb ft).
scientia non olet · About LEMON Manuals