OEM Toyota MR2 Spyder Timing Chain

Toyota MR2 Spyder Timing Chain Parts Questions & Experts Answers

• Timing Chain
  13506-0D010
  Q: How to service and repair the timing chain on Toyota MR2 Spyder?

  A: The timing chain servicing process starts by draining engine coolant before removing the rear suspension upper brace along with the engine under covers, Drive Belt and generator and the drive belt idler through removal of 2 bolts and 2 nuts and the idler itself. A wooden or rubber block placed between the oil pan will accept a jack while you remove three bolts along with three nuts and one right-hand engine mounting insulator. The procedure includes disconnecting 2 PCV hoses and the noise filter and heated oxygen sensor (bank 1 sensor 1) connector before you remove 9 bolts, 2 nuts and 2 seal washers along with the cylinder head cover. For servicing the cylinder head start by disconnecting the engine wire along with its 3 brackets and remove the cylinder head cover while also taking off its gasket. Use the crankshaft pulley to turn the engine until the No.1 cylinder reaches TDC/compression while aligning its groove with timing mark 0 on the timing chain cover and ensuring both sprocket point marks run parallel; adjust the crankshaft if necessary by turning it one revolution for alignment. The crankshaft pulley requires removal through the use of Special Service Tools: 09213-70011, 09330-00021 and if needed requires assistance from Special Service Tool: 09950-50013 (09951-05010, 09952-05010, 09953-05020, 09950-05021). The drive belt tensioner along with the right-hand engine mounting bracket and chain tensioner and Water Pump and crankshaft position sensor need to be extracted through the removal of 11 bolts and a nut while requiring gentle prying to protect contact surfaces. To access the sprockets it is essential to first remove the crankshaft position sensor plate combined with the chain tensioner slipper, timing chain, crankshaft timing sprocket and VVT timing sprocket by firmly holding the hexagonal head wrench portion of the camshaft when loosening the sprocket. Check the timing chain and sprockets for elongation which must not reach 122.6 mm (4.827 inch) and verify drive belt idler rotation smoothness then replace the bearing when necessary. Check the plunger movement of the chain tensioner as well as the slipper and vibration damper wear which should not exceed 1.0 mm (0.039 inch). Use Special Service Tool: 09309-37010 to put on the crankshaft front oil seal when the timing chain cover is taken off. The Special Service Tool: 09308-10010 is needed if the timing chain cover stays in position. Install the drive belt idler bearing using Special Service Tool: 09950-60010 (09951-00240), 09950-70010 (09951-07100) for correct installation steps. When installing bolt the camshaft timing sprocket and VVT timing sprocket along their knock pin and timing marks before tightening to 54 Nm (551 kgf-cm, 40 ft. lbs.). Reposition the timing chain damper on the TDC/compression of No. 1 cylinder and fasten it with two bolts tightened to 9 Nm (92 kgf-cm, 80 inch lbs.). Then place the timing chain on the crankshaft and camshaft timing sprockets while ensuring correct alignment. The repair requires installation of the timing chain cover together with water pump while using Part No. 08826-00100 seal packing on the cover and tightening all bolts to their proper torque values. Following the mounting of the right-hand engine bracket with seal packing (Part No. 08826-00080 or equivalent) on the threads, install the drive belt tensioner then the crankshaft position sensor, crankshaft pulley, and chain tensioner before torquing all components at specified values. The procedure ends with valve timing inspection after which you should add the oil dipstick and guide and cylinder head cover with new gasket before installing the right-hand engine mounting insulator and ignition coils and drive belt idler. Finally replace generator assemblies followed by engine under covers and suspension upper brace then fill with engine coolant and start the engine to verify leak-free performance.