The replacement of the camshaft (RH or LH, 1NZ-FXE) starts with removing rear floor board No.2, deck floor box rear, and rear floor board No.3. Start the procedure by disconnecting the battery terminal then removing the engine under cover RH, windshield wiper link assembly, cowl top panel sub-assembly outer front, radiator support opening cover, and air cleaner assembly from the vehicle. You should suspend the brake master cylinder reservoir sub-assembly before removing its reservoir bracket and cylinder head cover sub-assembly. Check the camshaft timing gear marks after performing these steps: set the No. 1 cylinder to TDC/compression by directing the crankshaft damper in a clockwise motion until its timing mark notch reaches "0". Trace marks on the timing chain plates which correspond to camshaft timing gear marks. Use Special Service Tool: 09023-38400 with its 8 mm socket hexagon wrench to remove the service hole screw plug. Subsequently, apply a screwdriver to keep the stopper plate of the chain tensioner elevated while removing the plug. An adjustable wrench should be used to shift the right side hexagonal lobe of camshaft No. 2 until the chain tensioner's plunger is pushed out before removing the screwdriver while maintaining wrench pressure. Thread a 3.0 mm (0.118 inch) diameter bar into the hole of the stopper plate while attaching tape and grip the hexagonal lobe of camshaft No. 2. Special Service Tool: 09023-38400 lets the technician loose the bolt and remove camshaft bearing caps No. 1 and No. 2 in their correct order as long as the camshaft stays at a level position. A gentle upward lift of camshaft No. 2 will allow its removal together with the camshaft timing gear. Set the camshaft timing gear assembly into a vice for holding before covering its oil paths with vinyl tape and puncturing the tape followed by applying air pressure of 150 kPa (1.5 kgf/cm2). Confirm that the camshaft timing gear assembly rotates in advance direction before removing the air pressure in specific order to disconnect the bolt and gear assembly while keeping the remaining four bolts intact. To install the camshaft timing gear assembly position it accurately with respect to the camshaft while gently rotating the left with the straight pin. Tighten the bolt to 64 Nm (653 kgf-cm) with 47 ft. lbs. while maintaining the safety of the camshaft. Before camshaft installation, apply oil to the cam and cylinder head journal. Then mount the camshaft together with its timing gear assembly and align the paint mark of the chain to the timing mark of the assembly. Tighten bearing cap No. 2 bolts to 13 Nm (130 kgf-cm) followed by bearing cap No. 1 bolts to 23 Nm (235 kgf-cm) according to the specified bolt sequence. Use Special Service Tool: 09023-38400 to tighten the bolt on camshaft No. 2 to 64 Nm (653 kgf-cm, 47 ft. lbs.). After this, remove the 3.0 mm (0.118 inch) diameter bar. The crankshaft damper requires clockwise rotation until its timing mark notch appears at "0" while you verify the timing marks. Apply adhesive to the service hole screw plug bolt end, install it using an 8 mm socket hexagon wrench to 15 Nm (153 kgf-cm, 11 ft. lbs.), inspect and adjust valve clearance using Special Service Tool 10514, 09023-38400, then install the cylinder head cover sub-assembly, reservoir bracket (8.5 Nm (87 kgf-cm, 75 inch lbs.)), brake master cylinder reservoir sub-assembly (8.5 Nm (87 kgf-cm, 75 inch lbs.)), air cleaner assembly (7.0 Nm (71 kgf-cm, 62 inch lbs.) for bolt and 3.0 Nm (31 kgf-cm, 27 inch lbs.) for clamp), cowl top panel sub-assembly outer front, windshield wiper link assembly, and check for engine oil leaks. The service concludes with radiator support opening cover installation, engine under cover RH attachment and negative battery terminal reconnection (6.0 Nm (61 kgf-cm, 53 inch lbs.)) before rear floor board No.3 installation and deck floor box rear and rear floor board No.2. The power window control system requires initialization to complete.
Posted by ToyotaPartsNow Specialist 
