GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Cobalt 🢒 Engine 🢒 Engine Mechanical - 2.4L 🢒 Exhaust Camshaft, Bearing Cap, and Lash Adjuster Installation

    Object Number: 1403926 Size: SH
  1. Install the hydraulic lash adjusters into their bores in the cylinder head. Apply lubricant GM P/N 12345501 (Canadian P/N 992704) or equivalent.

    2. Object Number: 1403895 Size: SH
  2. Lubricate the valve tips with GM P/N 12345501 (Canadian P/N 992704) or equivalent.

    3. Object Number: 1403921 Size: SH

    Important: Used roller followers must be returned to the original position on the camshaft. If the camshaft is being replaced, the roller followers actuated by the camshaft must also be replaced.

  3. Position the roller followers on the tip of the valve stem and on the lash adjuster. Apply lubricant GM P/N 12345501 (Canadian P/N 992704) or equivalent.

    4. Object Number: 1825076 Size: SH
  4. When installing the camshafts, ensure the intake camshaft notch is in the 5 o'clock position (2) and the exhaust camshaft notch is in the 7 o'clock position (1). The number 1 piston should be at top dead center (TDC), crankshaft key at 12 o'clock.

    5. Object Number: 1403931 Size: SH
  5. Set the exhaust camshaft on top of the roller followers in the camshaft bearing journals. Lubricate with GM P/N 12345501 (Canadian P/N 992704) or equivalent.
  6. Install the camshaft caps and hand start the camshaft cap bolts.

    7. Notice: Refer to Fastener Notice in the Preface section.

  7. Tighten the camshaft cap bolts in increments of 3 turns until they are seated, lubricate.

    8. Tighten
    Tighten the camshaft caps to 10 N·m (89 lb in).