OEM Toyota Echo Timing Chain

Toyota Echo Timing Chain Parts Questions & Experts Answers

• Timing Chain
  13506-21050
  Q: How to remove and replace the timing chain on Toyota Echo?

  A: The first step to remove the timing chain begins with engine coolant drain and continues with removal of the RH front wheel and RH engine under cover. The following steps need completion: first disconnect the Drive Belt and generator followed by disconnecting the PS pump from the engine and removing the RH engine mounting insulator after setting a jack with wooden block under the engine. The removal process starts with disconnecting the bolt securing the liquid tube to the RH engine mounting insulator and continues by extracting the 5 bolts, nut and insulator from models with A/C. Start by removing the cylinder head cover through its four nuts and No.2 cover then proceed to take away the Ignition Coils and the two PCV hoses. First detach all seven bolts and two seal washers, two nuts, the cylinder head cover along with its gasket. Indicate TDC/compression of the number one cylinder by delivering the crankshaft pulley until the groove coincides with timing mark "0" on the timing chain cover. Both marks on the camshaft timing sprocket and valve timing controller assembly must point upward. If the alignment requires adjustment, spin the crankshaft through one revolution before realigning the marks. Start by removing the crankshaft pulley through the application of Special Service Tools numbered: 09213-70010 and 09330-00021. Optional assistance can be provided using Special Service Tool: 09950-50013 (09951-05010, 09952-05010, 09953-05020, 09954-05021). Start with sensor removal of crankshaft position while taking out bracket for engine mounting on right hand side and Water Pump. The technician should first remove the oil control valve and timing chain cover by extracting the 13 bolts and nut followed by using an E8 torx wrench socket to remove the stud bolt and carefully prying off the cover without harming contact surfaces. Disassemble the cylinder block and oil pan by removing their 2 O-rings followed by the chain tensioner and chain tensioner slipper and chain vibration damper. Vernier calipers should be used to measure 16 links of the timing chain and timing sprockets. Chain replacement should be considered when elongation reaches above 123.2 mm (4.850 inch). The minimum distance requirements for timing sprocket diameters must be checked with the chain installed. The measurements should show that both the camshaft sprocket is 96.2 mm (3.787 inch) and the crankshaft sprocket is 50.5 mm (1.988 inch). When chain tensioner slipper and vibration damper wear reaches 1.0 mm (0.039 inch), they must be replaced. Verify that the chain tensioner plunger displays fluid motion until it successfully engages in position. When performing oil seal replacement cut off the seal lip before gently pulling out the seal without damaging the crankshaft while using Special Service Tool: 09612-22011 to install the new seal. Place the crankshaft at ATDC positions between 40 - 140 degrees before positioning the intake and exhaust sprocket timing at ATDC 20 degrees and re-establish the crankshaft point at ATDC 20 degrees. Install the chain vibration damper while using two bolts that must reach 9.0 Nm (92 kgf-cm, 80 inch lbs.) torque force. The timing chain requires proper alignment of the Yellow mark plate and the camshaft timing sprocket and gear and the crankshaft timing sprocket mark to prevent exhaust camshaft movement. Use the chain tensioner slipper before rotating its lock plate upwards and pushing in the plunger. Following this, install a 2.5 mm (0.098 inch) bar into the lock plate holes while installing the chain tensioner with two bolts at 9.0 Nm (92 kgf-cm, 80 inch lbs.). Verify the strain between the intake and exhaust camshaft timing sprockets after taking out the bar. Amply coat the contact areas of the timing chain cover and cylinder head and cylinder block by removing existing packing materials and installing either seal packing Part No. 08826-00100 or equivalent to ensure 3-minute assembly time. The installation process includes applying Part No. 08826-00080 or equivalent seal packing at 4 locations before installing 2 new O-rings to the cylinder block and oil pan No. 1 and the timing chain cover, new O-ring, and water pump with 16 bolts and 3 nuts that require uniform torque value tightening. Start by installing the engine mounting bracket to its threads and packing it with seal before adding the position sensor and control valve and pulley then torque their connections properly. The procedure concludes with cylinder head cover installation followed by an application of RH engine mounting insulator and addition of PS pump and generator before drive belt placement and completion with RH engine under cover and RH front wheel attachment and insertion of engine coolant and engine startup for leakage inspection.