OEM 2010 Scion tC Timing Chain

2010 Scion tC Parts Questions & Experts Answers

• Q: How to remove the timing chain on 2010 Scion tC?

  A: Disconnection of the negative cable from the battery and waiting ninety seconds is essential when removing a 2AZ-FE timing chain to avoid Air Bag activation. Begin by removing the hood sub-assembly with the front wheel RH as well as engine under covers RH and LH along with the front fender apron seal RH and No. 1 engine cover sub-assembly through the removal of their corresponding 2 nuts. The first step requires draining engine coolant followed by removal of the front exhaust pipe assembly with fan & generator V belt and generator assembly and vane pump assembly. The engine mounting insulator RH requires removal by unbolted radiator reservoir and the vane pump oil reservoir needs separation from the No. 1 oil reservoir bracket without breaking connected 2 oil reservoir hoses followed by removal of all necessary bolts and nuts. The engine wire clamps should be disconnected while lowering the engine with a transmission jack. The procedure requires the ignition coil assembly and cylinder head cover sub-assembly removal after disconnecting ventilation hoses and engine wire and V-ribbed belt tensioner assembly removal during engine elevation. Install the engine hangers at positions 1 and 2 before securing the engine with a chain block during a bolt and nut removal operation of the crankshaft position sensor combined with the oil pan sub-assembly. The work technician performs precise cutting of the applied sealer when removing the oil pan. To set the No. 1 cylinder at TDC/compression you must align the crankshaft pulley groove with "0" mark and both camshaft timing gears need proper alignment. Begin by fixing the crankshaft pulley using Special Service Tools: 09213-54015 91651-60855 to loosen the bolt before removing it with the Special Tools: 09950-50013 09951-05010. It is necessary to remove the No. 1 chain tensioner assembly together with the timing chain cover sub-assembly while safeguarding contact surfaces. Then extract the No. 1 crankshaft position sensor plate and timing chain guide along with the chain tensioner slipper. Finally, obtain the chain sub-assembly, No. 1 chain vibration damper, crankshaft timing sprocket, and No. 2 chain sub-assembly after aligning the oil pump drive shaft gear by turning the crankshaft and securing it in position followed by component removal.