OEM 2006 Toyota 4Runner Timing Cover

2006 Toyota 4Runner Parts Questions & Experts Answers

• Q: How to replace the timing chain or Timing Cover sub-assembly on 2006 Toyota 4Runner?

  A: Replacement of the timing chain or belt cover sub-assembly begins with removing the power steering link assembly, differential carrier assembly front, draining engine coolant and oil, and removing both the battery and V-bank cover. You must begin by removing 11 clips from the upper radiator support seal then loosen the fan coupling before taking out the fan assembly and V belt of the generator. After disconnecting the ventilation hose No.2 the technician will remove the air cleaner assembly while removing the oil level gauge guide which requires unloading the oil level gauge along with its bolt and O-ring. Remove the water inlet while performing the separation of vane pump assembly then take out the generator assembly and cooler compressor assembly and V-ribbed belt tensioner assembly and the idler pulley sub-assemblies No.1 and No.2. SST 09213-54015 (91651-60855), 09330-00021, 09950-50013 (09951-05010, 09952-05010, 09953-05020, 09954-05030) should be utilized to remove the crankshaft pulley. Subsequently, SST 09032-00100 is used to extract oil pan sub-assembly No.2 before moving on to the oil strainer sub-assembly and oil pan sub-assembly. The technician must discard the intake air surge tank followed by the ignition coil assembly and both cylinder head cover sub-assemblies. Disengage the two oil control valve connectors before you remove the camshaft timing oil control valve assembly and VVT sensor. Take out three bolts and two nuts on the oil filter bracket sub-assembly while removing the sub-assembly for timing chain cover using 24 bolts and two nuts followed by employing careful prying to avoid surface damage before O-ring removal from the LH cylinder head. After wrapping a screwdriver with tape use it to pry the timing chain cover oil seal out. Install New oil seal through SST 09226-10010 and apply a hammer while lubricating the oil seal lip with MP grease. The timing chain cover installation process requires cleaning old packing materials then applying the new O-ring to the LH cylinder head and using Part No. 08826-00080 or equivalent seal packing at specified areas. Align the key way of the oil pump drive rotor to the crankshaft timing gear before placing the timing chain cover on its position and securing it by tightening 24 bolts and two nuts to 23 Nm (235 kgf-cm, 17 ft. lbs.) while verifying the chain and slipper maintain a distance from the seal line. The procedure requires installation of the new gasket between the oil filter bracket sub-assembly and the torque application of three bolts and two nuts to 19 Nm (194 kgf-cm, 14 ft. lbs.) before adding the VVT sensor, camshaft timing oil control valve assembly, and both cylinder head cover sub-assemblies. Correctly install the ignition coil assembly to 10 Nm torque (102 kgf-cm, 7 ft. lbs.) then continue installation with the intake air surge tank and three parts of the oil pan sub-assembly. The crankshaft pulley gets installed using SST 09213-54015 (91651-60855), 09330-00021 while idler pulley sub-assemblies No.1 and No.2, the V-ribbed belt tensioner assembly, cooler compressor assembly, generator assembly, vane pump assembly, water inlet, oil level gauge guide, and air cleaner assembly receive their installation. The ventilation hose No.2 requires attachment and the fan system must be installed with the fluid coupling followed by securing the fan V-belt. Fully tighten the fan using the fluid coupling. You should install the upper radiator support seal before adding the battery as well as the differential carrier assembly front and power steering link assembly. Engine oil and coolant are added before the technician checks for leaks then installs the V-bank cover by tightening two nuts to 7.5 Nm (76 kgf-cm, 66 inch lbs.).