OEM 2006 Toyota 4Runner Timing Chain

2006 Toyota 4Runner Parts Questions & Experts Answers

• Q: How to replace the Timing Chain sub-assembly on 2006 Toyota 4Runner?

  A: Starting the chain sub-assembly replacement requires users to remove power steering link assembly and differential carrier assembly front (4WD drive type) while draining engine coolant and oil and removing battery and V-bank cover. The procedure begins by removing the radiator support seal upper through clip removal of 11 components then loosening the fan with fluid coupling which permits the removal of both fan and generator V belt. Ventilation hose No.2 should be disconnected before removing the air cleaner assembly along with the oil level gauge guide replacement that requires removal of the oil level gauge, bolt, and O-ring. Use a screwdriver to disconnect the P/S oil pressure switch connector then take out the 2 assembly bolts and.preventDefault damage to all elements with the pulley during disassembly. The removal process requires discarding 5 bolts to separate the generator assembly in combination with cooler compressor assembly and V-ribbed belt tensioner assembly. The process requires separating idler pulley sub-assembly No.2 and No.1 through pulley and bolt removal. The crankshaft pulley requires SST 09213-54015 (91651-60855), 09330-00021 while removing the pulley set bolt before uninstalling it with SST 09950-50013 (09951-05010, 09952-05010, 09953-05020, 09954-05030). You must first remove 10 bolts and 2 nuts from oil pan sub-assembly No.2 followed by using SST 09032-00100 to cut off the applied sealer before proceeding carefully to avoid contact surface damage. I will remove the oil strainer sub-assembly by uninstalling two nuts and its strainer and gasket. The oil pan sub-assembly needs to be removed by unfastening the 4 housing bolts and 17 bolts and 2 nuts while using a screwdriver to pry it off then extracting the O-ring from the oil pump. The procedure starts by removing the intake air surge tank and the ignition coil assembly and then proceeding with the removal of cylinder head cover sub-assembly followed by cylinder head cover sub-assembly LH. Two connectors and two bolts must be removed to detach the camshaft timing oil control valve assembly. You must separate the VVT sensor together with the timing chain or belt cover sub-assembly as well as the timing gear case or timing chain case oil seal. Align the crankshaft set key with the cylinder block timing line while having all timing marks properly aligned in their positions to set No.1 cylinder at TDC/compression. Garage technicians should remove Chain tensioner assembly No.1 while being cautious not to rotate the crankshaft and fix the stopper plate after pushing in the plunger. Securely detach the chain tensioner slipper with an idle gear No.1 through use of a 10 mm hexagon wrench together with chain vibration damper No.2. Place the chain tensioner slipper and chain tensioner assembly No.1 properly then tighten it following the documented specifications. Assembly the chain sub-parts by setting their timing marks right while using SST 09213-54015 (91651-60855), 09330-00021 to bolt down the crankshaft pulley with 250 Nm (2,549 kgf-cm, 184 ft. lbs.). Proper installation of V-ribbed belt tensioner assembly demands specific tightening procedure and torque followed by idler pulley sub-assembly No.1 and No.2. The specified torque limits guide the installation of the P/S oil pressure switch connector as you reinstall it between the components. Properly install the water inlet together with the oil level gauge guide that includes a new O-ring while putting on the air cleaner assembly. The installation process includes connecting ventilation hose No.2 followed by installing the fan with fluid coupling combined with the fan and generator V belt before the fan receives a tight bolt-down. The procedure requires installation of the radiator support seal upper and battery followed by the differential carrier assembly front for vehicles with 4WD drive type and a power steering link assembly. Engine oil and coolant go into the system while leak detection takes place before installing the V-bank cover with its specified torque requirement and measuring ignition timing with SST 09843-18040.