OEM 2003 Toyota Camry Timing Chain

2003 Toyota Camry Parts Questions & Experts Answers

• Q: How to replace the timing chain on 2003 Toyota Camry?

  A: The replacement procedure for a timing chain begins with removing essential components including hood sub-assembly, front wheel RH, engine under covers LH and RH, and front fender apron seal RH. After draining the engine oil you should install a new gasket and drain plug and torque them to 25 Nm (255 kgf-cm, 18 ft. lbs.). The procedure begins by removing the exhaust pipe front assembly followed by engine moving control and bracket (3 bolts) alongside engine mounting stay No.2 RH, engine mounting bracket No.2 RH, fan generator V belt, and engine cover sub-assembly No.1. The procedure requires users to disconnect the engine wire followed by removal of the generator assembly and vane pump assembly while keeping the hose attached. Before proceeding with bolt removal, detach the engine wire harness clamp followed by 8 bolts and 2 nuts and ventilation hoses and ignition coil assembly and cylinder head cover sub-assembly. Start by bending cylinder No. 1 to TDC position and then use Service Tools 09213-54015 (91651-60855) or 09330-00021 for TMC versions or 09960-10010 (09962-01000, 09963-01000) for TMMK made to remove the crankshaft pulley. Finish the procedure by taking off the crank position sensor as well as the oil pan sub-assembly which has 12 bolts and 2 nuts. Special Service Tool: 09032-00100 enables users to cut through the sealer applied to the oil pan while they remove the device for inspection. The tool must not harm the contact surfaces. Install engine hangers No.1 and No.2 by applying 38 Nm torque to the bolt and remove the chain tensioner assembly No.1 and V-ribbed belt tensioner assembly through its two nuts. First position an engine chain hoist onto the hangers before separating the engine mounting insulator and steering gear return hose clamp and finally disassembling the engine mounting bracket RH through its 3 bolts. The technician removes the timing chain or belt cover sub-assembly with 14 bolts and 2 nuts. They also discard the crankshaft position sensor plate No.1, chain tensioner slipper, chain vibration damper No.1, chain sub-assembly and crankshaft timing gear or sprocket. The installation of No.2 chain sub-assembly requires turning the crankshaft counterclockwise by 90 degrees and using a 4 mm bar to lock the aligned oil pump drive shaft gear into position before removing the nut, bolt, chain tensioner plate and spring. Connect No.2 chain sub-assembly by first positioning the crankshaft key horizontally left while synchronizing mark links to timing marks followed by temporary tightening of the oil pump drive shaft gear. The installation process requires placement of the damper spring followed by the chain tensioner plate, then torque the components to 12 Nm (122 kgf-cm, 9 ft. lbs.). Next, align the oil pump drive shaft gear. Mount Chain Vibration Damper Number One with 9.0 Nm Torque (92 kgf-cm) and Chain Sub-Assembly under Condition where No.1 Cylinder Rests at TDC (Compression). Operators must use Special Service Tool: 09309-37010 to align timing marks before installing the sprocket and then placing the chain. Place the chain tensioner slipper at position and torque to 19 Nm (194 kgf-cm, 14 ft. lbs.) before adding the crankshaft position sensor plate No.1 with its "F mark in forward direction. The timing chain or belt cover sub-assembly goes next using seal packing (Part No. 08826-00080) with specified bead shapes and 14 bolts combined with 2 nuts torqued according to specifications. The service process requires installation of the V-ribbed belt tensioner assembly followed by transverse engine mounting bracket (3 bolts) and then transverse engine mounting insulator (4 nuts), torque all fasteners according to specifications. The oil pan sub-assembly should be mounted without applying oil on surfaces while using specified seal packing (Part No. 08826-00080) in a defined bead shape and fastening with 12 bolts and 2 nuts which require 9.0 Nm (92 kgf-cm, 80 inch lbs.) torque. Fitting begins with No.1 chain tensioner assembly followed by crank position sensor bolted at 9.0 Nm (92 kgf-cm) torque and using Special Service Tools to torque crankshaft pulley to 170 Nm (1,733 kgf-cm). The technician should install the cylinder head cover sub-assembly together with ignition coil assembly (torqued to 9.0 Nm (92 kgf-cm, 80 inch lbs.)) and the vane pump assembly followed by the generator assembly and engine wire before adding fan and generator V belt and engine mounting bracket No.2 RH (torqued to 52 Nm (531 kgf-cm, 38 ft. lbs.)) and engine mounting stay No.2 RH (torqued to 64 Nm (653 kgf-cm, 47 ft. lbs.)) before completing with engine moving Complete the installation of the front exhaust pipe assembly and front wheel RH unit by torquing to 103 Nm while mounting the hood sub-assembly to 13 Nm. After which add engine oil and check for any oil leakage conditions.