OEM 2009 Scion xB Camshaft

2009 Scion xB Camshaft Parts Q&A

• Q: How to remove the camshaft on 2009 Scion xB?

  A: The procedure of removing the camshaft from a 2AZ-FE engine begins with removing the rear engine under cover RH and then proceeding to take away the No. 1 engine cover sub-assembly and ignition coil assembly followed by the spark plug. After disconnecting the two ventilation hoses the technician should remove two wire harness bracket bolts before removing the eight bolts and two nuts holding the head cover and gasket. To set the No. 1 cylinder at TDC/compression position use the crankshaft pulley until you see the groove match timing mark "0" on the timing chain cover. Ensure the timing marks on the camshaft timing gear and sprocket show correct alignment with the No. 1 and No. 2 bearing caps; otherwise repeat the preceding manual turn of the crankshaft pulley. Use a marker to mark the chain at the position of its alignment with both timing marks. Use a wrench to hold the No. 2 camshaft before loosening the No. 2 camshaft timing gear or sprocket through the timing set bolt. Uniformly loosen and remove the specified sequence of 10 bearing cap bolts to access the No.2 camshaft and its components. Remove the 5 bearing caps and then the camshaft timing sprocket set bolt before separating the sprocket from the attached timing chain. When taking out the camshaft you must first evenly loosen and detach the 10 bearing cap bolts after that remove the 5 bearing caps and the camshaft along with camshaft timing gear when maintaining control of the timing chain. Secure the timing chain with string matter to stop it from falling inside the timing chain cover. The correct method to remove the camshaft timing gear assembly requires clamping the camshaft in a vise to stop rotation, taping all ports except the advance side port and applying 150 kPa (1.5 kgf/cm2, 22 psi) air pressure to the oil path and manually turning the gear counterclockwise. Maintain a piece of cloth to minimize oil drops while working with the paths. The procedure ends with the removal of the single flange bolt for the camshaft timing gear while keeping the 4 remaining bolts in place. Before reuse of the timing gear it is essential to free the straight pin lock.