Corolla 2006-2007

Timing Chain Cover & Seal


Removal & Installation

  1. Before servicing the vehicle, refer to the Precautions section.
  3. Drain the cooling system.
  5. Remove or disconnect the following:

    Negative battery cable
    Right engine cover
    Accessory drive belt and generator
    Power steering pump, without disconnecting the hoses.
    Right engine mount
    Cylinder head cover
    Crankshaft pulley
    Crankshaft position sensor from the timing chain cover.
    Accessory drive belt tensioner.
    Right engine mounting bracket
    Chain tensioner
    Water pump
    Timing chain cover


To install:

  1. Install or connect the following:

    New seal in the front cover
    Silicone sealant to the timing chain cover
    Timing chain cover

  3. Water pump. Tighten the 10mm bolts marked -C- to 80 inch lbs. (9 Nm), those marked -A- to 10 ft. lbs. (13 Nm), and the remaining 10mm bolts to 96 inch lbs. (11 Nm). Tighten the 12mm bolts to 14 ft. lbs. (18.5 Nm). Be sure to install the bolts in their original locations. Bolt lengths:
    1. A: 1.77 in. (45mm).
    3. B: 1.38 in. (35mm).
    5. C: 1.18 in. (30mm).
    7. D: 0.98 in. (25mm).

  5. With a Torx® wrench, tighten the stud bolt to 82 inch lbs. (9.3 Nm).

    Right engine mounting bracket and mount. Bolts, with sealant applied: 35 ft. lbs. (47 Nm).
    Drive belt tensioner. Bolt: 51 ft. lbs. (69 Nm). Nut: 21 ft. lbs. (29 Nm).
    Crankshaft position sensor. Tighten to 80 inch lbs. (9 Nm).
    Crankshaft pulley. Bolt: 102 ft. lbs. (138 Nm).

  7. Install or connect the following:

    Silicone sealant to the 2 areas where the timing chain cover meets the cylinder head.
    Cylinder head cover. Bolts with washers in the sequence shown: 80 inch lbs. (9 Nm). Bolts without washers: 96 inch lbs. (11 Nm).
    Right engine mount. Bolts and nuts: 38 ft. lbs. (52 Nm).
    Power steering pump
    Alternator and drive belt
    Right engine undercover
    Negative battery cable
    Washer tank

  9. Fill the cooling system to the proper level.
  11. Start the vehicle, check for leaks and repair if necessary.