Q: How to replace the camshaft (RH) on 2004 Toyota Camry?
A: To replace the camshaft (RH), first drain the engine coolant, then remove the V-bank cover sub-assembly, front suspension upper brace center, air cleaner assembly with hose, intake air surge tank, spark plug, cylinder head cover sub-assembly, front wheel RH, front fender apron seal RH, V (cooler compressor to crankshaft pulley) belt No.1, vane pump V belt, engine moving control rod, engine mounting stay No.2 RH, generator bracket No.2, crankshaft pulley, timing belt No.1 cover, timing belt No.2 cover, engine mounting bracket RH, timing belt guide No.2, timing belt, and timing belt idler sub-assembly No.2. The removal and reorganization of the camshaft timing pulley requires Special Service Tools 09960-10010 (09962-01000, 09963-01000) and 09249-63010 for both right-hand and left-hand operations. Disconnect the engine wire harness clamps from the timing belt No. 3 cover before removing the 6 bolts and the timing belt cover. The camshaft requires level positioning to prevent damage and install a service bolt at the exhaust camshaft sub-gear (torque to 5.4 Nm) before evenly loosening and removing the 10 bearing cap bolts followed by removal of the 5 bearing caps and camshaft without using force to extract it. When removing the No. 2 camshaft proceed with the same bearing cap bolt and cap removal method before extracting the oil seal. The procedure for removing the camshaft timing gear assembly includes fixing the camshaft in a vise before using a 46 mm socket wrench (left-hand threaded) to extract the lock nut and finally taking out the timing gear (VVT-i) while leaving the 3 gear bolts in place. Insert the camshaft sub-gear into a vise before applying counterclockwise torque to uninstall the service bolt through use of Special Service Tool: 09960-10010 (09962-01000, 09963-00500). The technician should then extract the snap ring and wave washer and finally remove the camshaft sub-gear and its camshaft gear spring. The procedure to install the camshaft sub-gear involves clamping it in a vise before adding gear bolt washers and sub-gear followed by wave washers and a snap ring until main gear holes match sub-gear holes followed by service bolt tightening at 5.4 Nm. First align the alignment pin with the gear groove and install VVT-i while applying engine oil on the nut and mounting surface before tightening the lock nut to 150 Nm. The installation procedure requires new engine oil application to the thrust portion and the journal of the No. 2 camshaft before proper positioning at the 90° angle to the timing mark and new oil seal installation together with seal packing (Part No. 08826-00080) to the No. 1 bearing cap before bearing cap assembly and bolt tightening to 16 Nm torque. Perform the same installation steps for the main camshaft by positioning it at the proper level and follow with the timing belt No.3 cover installation process along with needed gasket checks and seal packing applications. Position and tighten the hardware for the camshaft timing pulley by using Special Service Tool: 09960-10010 (09962-01000, 09963-01000) to bolt the RH part (torque: 125 Nm) and then bolt the LH part (torque: 125 Nm). The correct installation procedure comprises timing belt idler sub-assembly No.2 (torque: 43 Nm), plus all steps needed to install the timing belt and its tensioner assembly with guide No.2, then engine mounting bracket RH (torque: 28 Nm), timing belt No.2 cover, timing belt No.1 cover, crankshaft pulley, generator bracket No.2 (torque: 28 Nm), engine mounting stay No.2 RH, and engine moving control rod. The last step requires valve clearance inspection followed by V belt installation for the vane pump and No.1 belt that connects the cooler compressor to the crankshaft pulley and drive belt tension checking and installation of the cylinder head cover sub-assembly with its torque set at 8.0 Nm. Intake air surge tank installation precedes the procedure by connecting vacuum hoses then putting on the front suspension upper brace center,V-bank cover sub-assembly, front wheel RH, add engine coolant, and check for leaks.