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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Engine Mechanical - 1.4L (LV7) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Cylinder Head Assemble (North America) >> Cylinder Head Assemble

Cylinder Head Assemble

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  1. Apply sealant to all plugs prior to installation. Refer to Adhesives, Fluids, Lubricants, and Sealers (North America LV7)Adhesives, Fluids, Lubricants, and Sealers (North America L5Q) .
    2. Fig 1: Rear Cylinder Head Core Hole Plugs
    GM4179383Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Component Fastener Tightening Caution .

  2. Install 2 NEW cylinder head core hole plugs (1) in the rear of the cylinder head. Tighten the plug to 25 N.m (18 lb ft).
    3. Fig 2: Side Cylinder Head Oil Gallery Plugs And Studs
    GM4171328Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque-to-Yield Fastener Caution .

  3. Install 2 NEW cylinder head oil gallery plugs (1) in the side of the cylinder head.
  4. Install 4 NEW cylinder head studs (2). Tighten the studs to 10 N.m (89 lb in)
    5. Fig 3: Cylinder Head Components
    GM4179382Courtesy of GENERAL MOTORS COMPANY
  5. Install 3 NEW cylinder head core hole plugs (1) in the top of the cylinder head. Tighten the plugs to 25 N.m (18 lb ft).
  6. Install a NEW cylinder head oil restrictor (2).
  7. Install a NEW cylinder head oil gallery plug (3).
  8. Install a NEW cylinder head core hole plug (4). Tighten the plug to 75 N.m (55 lb ft).
    9. Fig 4: Engine Oil Manifold Check Valve
    GM4064806Courtesy of GENERAL MOTORS COMPANY
  9. If necessary, install new engine oil manifold check valves (3):
    1. Use lubricant included with EN-46122  remover/installer to lubricate the outside of the new check valve (3).
    2. With the check ball end of the check valve facing DOWN, towards the head, insert the NEW check valve into the check valve bore in the cylinder head.
    3. Place EN-46122-2  collar (2) over the new check valve with the slightly-larger inside diameter of the collar DOWN toward the cylinder head.
    4. Using the EN-46122-1  driver (1), lightly tap the new check valve into place until the driver stops against the top of the collar.
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