OEM 2007 Scion tC Wheel Hub

2007 Scion tC Parts Questions & Experts Answers

• Q: How do you service and repair the front Wheel Hub components on 2007 Scion tC?

  A: A proper inspection of front axle hub bearing starts with these steps: remove the front wheel and disconnect the front disc brake caliper before removing the front disc. The backlash measurement from the axle hub needs a dial indicator to verify that the value stays below 0.05 mm (0.0020 inch). Breach of this limit requires the replacement of the bearing. Check whether the axle hub deviation reaches its maximum value with this tool during the inspection process and exchange the bearing if this limit is exceeded. For removal start by taking out the front wheel and then disconnect the front stabilizer link assembly after unthreading the nut from it before using a hexagon 6 mm wrench to clamp the stud only when the ball joint moves. Using SST 09930-00010 unfasten the front axle hub nut then remove it after applying vehicle brakes. Detach the front speed sensor by pulling off its bolt and removing it from the steering knuckle without causing any damage to the equipment. The front disc brake cylinder assembly can be removed after detaching the 2 bolts and suspending the caliper with a string. Check that oil and grease cannot be found on the friction surfaces before disc removal. Use SST 09628-00011 to disconnect the steering knuckle while removing its tie rod end sub-assembly using a nut along with the needed cotter pin. Remove the front No. 1 suspension lower arm sub-assembly by unfastening its bolt and 2 nuts. You should disconnect the drive shaft using a plastic-faced hammer to prevent boot and speed sensor rotor damage and afterward remove the steering knuckle. SST 09628-62011 allows the removal of front lower ball joint assembly before proceeding to pull out the front axle hub hole snap ring utilizing snap ring pliers. The technician places the steering knuckle into a soft vise and utilizes SST 09520-00031 to extract the axle hub after which they install SST 09950-40011 and multiple variants to extract the bearing inner race. Detach 3 bolts from the front disc brake dust cover before removal. To install the new axle hub bearing into the steering knuckle users should apply SST 09950-60020 and 09950-70010 tools. Press in the axle hub sub-assembly using SST 09608-32010 and 09950-60010 after installing the front disc brake dust cover with 3 bolts which need torquing to 8.3 Nm (85 kgf-cm, 73 inch lbs.). The hole snap ring installation requires snap ring pliers and completion requires attaching the lower ball joint followed by tightening the nut to 103 Nm (1,050 kgf-cm, 76 ft. lbs.) while adding a new cotter pin. The front axle assembly installation requires bolting the drive shaft to the steering knuckle using 2 bolts with 2 nuts which should be tightened to 240 Nm (2,447 kgf-cm, 177 ft. lbs.) while applying engine oil to screw parts if reusing bolts and nuts. Install the front No. 1 suspension lower arm sub-assembly by attaching the lower ball joint first and torques it to 89 Nm (908 kgf-cm, 66 ft. lbs.) before installing the tie rod end sub-assembly and torquing it to 49 Nm (500 kgf-cm, 36 ft.lbs.). When installing the front stabilizer link assembly thread on the nut then tighten it to 74 Nm (755 kgf-cm, 55 ft. lbs.) but maintain the stud with a 6 mm hexagon wrench if the ball joint starts to turn. The front disc assembly requires installation with the front disc brake cylinder assembly using two bolts that should be torqued to 107 Nm (1,090 kgf-cm, 79 ft. lbs.). Ensure that the friction surfaces remain free of oil or grease. Place the new axle hub nut in position through the use of a 30 mm socket wrench and torque it to 216 Nm (2,200 kgf-cm, 159 ft. lbs.). After torquing, use a chisel along with a hammer to stake the axle hub nut. To complete the installation finish by checking the ABS speed sensor signal while inspecting and adjusting the front wheel alignment before torquing the front wheel to 103 Nm (1,050 kgf-cm, 76 ft. lbs.).