OEM 2006 Toyota Matrix Timing Chain

2006 Toyota Matrix Parts Questions & Experts Answers

• Q: How to replace the timing chain sub-assembly on 2006 Toyota Matrix?

  A: The procedure to replace the timing chain sub-assembly begins with negative terminal battery disconnect followed by the removal of front wheel RH and engine under cover RH and cylinder head cover No. 2 through the process of 2 nuts and 2 clips removal. The maintenance process begins with draining engine coolant followed by removal of the fan and generator V belt and subsequent separation of the vane pump assembly before extracting the generator assembly. First disconnect the oil reservoir bracket No. 1 after extracting its 2 bolts then remove the engine mounting insulator RH through 2 bolts. Place a wooden block on a jack to support the engine before removing 4 bolts and 2 nuts. You must first disconnect the 4 ignition coil connectors, remove 2 nuts to separate the engine wire before taking out 4 bolts for ignition coil assembly removal. The cylinder head cover removal requires disconnecting ventilation hoses while removing 3 clamps from the engine wire followed by taking out 9 bolts, 2 seal washers and 2 nuts and 3 clamp brackets. The V-ribbed belt tensioner assembly removal process begins by disassembly of the bolt and nut before engineers perform engine jack motions to simplify bolt removal and conclude with extraction of three mounting bracket RH bolts. Separating the crankshaft position sensor requires two bolt removal and subsequent separation of the water pump assembly. We must position the No. 1 cylinder at TDC/compression by using the crankshaft pulley groove with the timing mark "0" on the timing chain cover while making certain the camshaft timing gears remain aligned. Use Special Service Tool: 09960-10010 (09962-01000, 09963-01000) to remove the crankshaft pulley bolt before taking off the crankshaft pulley. First remove two nuts from chain tensioner assembly No. 1 but do not rotate the crankshaft without the tensioner. Proceed to remove the timing chain or belt cover sub-assembly from its ten bolts and two nuts followed by using a torx wrench socket (E8) to remove the stud bolt and carefully pry off the cover. First remove the timing chain or belt cover oil seal using a screwdriver. After that remove the crankshaft position sensor plate No. 1. The team must first detach the chain tensioner slipper's bolt before using two screwdrivers to loosen the chain sub-assembly while still protecting the engine with a shop rag by turning the crankshaft 1/4 revolution if the camshafts need to be rotated with the chain not on the gears. The first step in chain sub-assembly installation involves setting the No.1 cylinder at TDC compression while positioning the point marks of camshaft timing gears correctly before linking the chain in place with the yellow link mark aligned to the timing mark. To install the crankshaft timing gear and camshaft timing gears with the chain first use Special Service Tool: 09223-22010 together with the recommended tool. The chain tensioner slipper goes beneath the bolt before tightening it to 18.5 Nm (189 kgf-cm, 14 ft. lbs.). After that, position the "F" mark on the crankshaft position sensor plate No. 1 while installing it facing forward. First tap an oil seal using Special Service Tool: 09223-22010 to fit it while applying a thin coat of multi-purpose grease on a new oil seal lip. Next apply seal packing before installing the timing chain or belt cover sub-assembly to specified torque values (Water pump part: Part No. 08826-00100 or equivalent; Other part: Part No. 08826-00080 or equivalent). Install the chain tensioner assembly No. 1 using an O-ring that is clean and lubricated while the pulley set key should align with the key groove before torquing the bolt to 138 Nm (1,407 kgf-cm, 102 ft. lbs.). The engine repair requires installation of crankshaft position sensor followed by water pump assembly and finally all components including engine mounting bracket RH, V-ribbed belt tensioner assembly, cylinder head cover sub-assembly, ignition coil assembly, engine mounting insulator RH, generator assembly, vane pump assembly, and fan and generator V belt. The last steps include engine coolant addition, battery negative terminal reconnection, checking for coolant and oil leakage, installing the second cylinder head cover and finally reattaching the RH front wheel while torquing all components to their stated values.