Camshafts - Removal/Installation

Installing a set of aftermarket camshafts can improve your engine's performance by opening your engines valves farther, keeping them open longer.

Time Required:
Give yourself at least 2 hours, and take your time

Tools Needed:

  • Torque Wrench
  • TDC Pin and Cam alignment tool (available cheap from New Edge Performance)
  • T55 TORX bit
  • 10mm Socket and wrench
  • 18mm Socket

    Procedure:


    Note:
    Be prepared to replace the cam bolts with something more durable. The specs are:
  • M10x1.50 (Metric 10 by 1.50 pitch)
  • 1.25" long
  • 10.9 Grade (class)


    Removal

    1. Remove the intake pipe.
    2. Detach the accelerator cable and the speed control cable (if equipped).
    3. Remove valve cover and the timing belt. For additional information, refer to Adjustable Cam Gear Installation Instructions
    4. Remove the camshaft timing pulleys.
    5. Note: Loosening sequence.
    Unscrew the bolts of the camshaft bearing caps evenly in several stages two turns at a time.
    A. Remove the oil seals.
    B. Remove the camshafts.



    Installation

    1. Note: Identification numbers are provided on the outer face of the camshaft bearing caps.
    Apply sealant to camshaft bearing cap numbers 0 and 5 in the areas shown.

    2. Turn the crankshaft to approximately 60 degrees before TDC on cylinder number 1.
    3. Note: Lay the camshaft in place so that none of the cams is at full lift.
    Lubricate the camshaft and camshaft bearing caps with engine oil.

    4. Note: Screw in the camshaft bearing cap bolts evenly, in the sequence shown, a half turn at a time and tighten them in two stages.
    Tighten the bolts of the camshaft bearing caps.
    A. Stage 1: 89 in/lb
    B. Stage 2: 14 ft/lb

    5. Install the camshaft oil seals.
    A. Lubricate the camshaft and oil seal lip with engine oil.
    B. Install a new oil seal.
    Note: Do not tighten the bolts. The camshaft timing pulleys must be able to turn freely on the camshafts. Install the camshaft timing pulleys.
    6. Install the timing belt. For additional information, refer to Adjustable Cam Gear Installation Instructions
    7. Lower the vehicle.
    8. Attach the accelerator cable and the speed control cable (if equipped).
    9. Install the intake pipe.
    10. Note: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.

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