Wheel Bearing - Front (Write-Up)
#1
Wheel Bearing - Front (Write-Up)
Got bored while changing font wheel bearing alst thursday and figured I would make a write up.
Tools Needed:
Sockets - 36mm, 15mm
Box Wrench - 13mm, 10mm
External Torx - E16
Jack/Jack Stand
Pounding Device
1) Before jacking up car, loosen axle nut (36mm socket) In the pic is my 4 foot pipe over socket to get extra torque. (image 1)
2) Safley jack up the vehicle and remove tire. (image 2)
3) Remove 2 15mm bolts to remove the caliper assembly and safley secure it out of the way. (image 3 and image 4)
4) Remove mini stud in rotor with 10mm box wrench or deep socket. (image 5)
5) Remove Rotor. Take care of braking surface as rotor is to be re-used. I hit center rim area and it popped right off. (image 6)
6) Remove axle nut completely (image 7)
7) Remove one side of control arm. I chose to do the Ball joint end. Bolt 13mm and Nut 15mm (image 8)
8) Wack out axle from the wheel bearing (image 9)
(suggestion: leave the nut on the end of the shaft flush with the end to protect the threads and give you a larger striking surface. Also remember the axle is still in the transmission and if you don't hold the spindle out a bit you are banging that shaft into the transmissions guts. If it's difficult I suggest going to the auto parts store and getting the loaner tool that bolts to the wheel studs and screws down on the shaft forcing it out of the hub assembly rather than a bigger hammer. A good coat of anti-seize on the splines is good when reassembling.)
Kiss4aFrog
9) Remove 4 E16 bolts from rear of wheel bearing. (image 10)
10) Assmeble in reverse order
Torque Specs:
E16 bolts - 65 Nm + 60*
Ball Joint - 37 Nm
Brake Caliper - 100 Nm
Axle Nut - 120 Nm + 60*
Notes: Took me just under 2 hours including needing to find a ride to get the external torx socket (i had up to e14 and needed a larger one)
Also, my bearing did not come with new hardware so I was careful when taking off older bolts to re-use them.
Tools Needed:
Sockets - 36mm, 15mm
Box Wrench - 13mm, 10mm
External Torx - E16
Jack/Jack Stand
Pounding Device
1) Before jacking up car, loosen axle nut (36mm socket) In the pic is my 4 foot pipe over socket to get extra torque. (image 1)
2) Safley jack up the vehicle and remove tire. (image 2)
3) Remove 2 15mm bolts to remove the caliper assembly and safley secure it out of the way. (image 3 and image 4)
4) Remove mini stud in rotor with 10mm box wrench or deep socket. (image 5)
5) Remove Rotor. Take care of braking surface as rotor is to be re-used. I hit center rim area and it popped right off. (image 6)
6) Remove axle nut completely (image 7)
7) Remove one side of control arm. I chose to do the Ball joint end. Bolt 13mm and Nut 15mm (image 8)
8) Wack out axle from the wheel bearing (image 9)
(suggestion: leave the nut on the end of the shaft flush with the end to protect the threads and give you a larger striking surface. Also remember the axle is still in the transmission and if you don't hold the spindle out a bit you are banging that shaft into the transmissions guts. If it's difficult I suggest going to the auto parts store and getting the loaner tool that bolts to the wheel studs and screws down on the shaft forcing it out of the hub assembly rather than a bigger hammer. A good coat of anti-seize on the splines is good when reassembling.)
Kiss4aFrog
9) Remove 4 E16 bolts from rear of wheel bearing. (image 10)
10) Assmeble in reverse order
Torque Specs:
E16 bolts - 65 Nm + 60*
Ball Joint - 37 Nm
Brake Caliper - 100 Nm
Axle Nut - 120 Nm + 60*
Notes: Took me just under 2 hours including needing to find a ride to get the external torx socket (i had up to e14 and needed a larger one)
Also, my bearing did not come with new hardware so I was careful when taking off older bolts to re-use them.
Last edited by Kiss4aFrog; 10-07-2013 at 12:30 AM.
#9
Nope... probably the spring seat/ strut mount. Or a bad sway bar link. A bad wheel bearing will make a rumbling or grinding noise that changes with speed, and usually gets worse when changing lanes in the opposite direction of the side the bad bearing is on and quieter when changing lanes the other way.(a bad left bearing will get louder when changing lanes to the right, and quieter when changing to the left)
#16
Mine (1996 850 Turbo) is an E14 Torx socket. Otherwise the same. I was replacing my axle (your boot looks iffy), when the "bashing the axle out" method managed to blow apart the bearing. It's just held together with seals, so try to take the axle out as gently as possible (if you're not replacing the hub assembly anyway).
#18
#20
To everyone who was able to just release the the 4 torx bolts without a fight, you were lucky.
I just replaced both front bearings 2 months ago after 14 NE winters and road salt, those bolts were brutally tight and the bolt head flanges were beginning to thin out.
Nex time I will liquid wrench the bolts for a day, heat the bells out of them, wack the heads a few times, thighten them down first and then back them out. Hopefully that will save me a trip to the machine shop to remove 4 stripped heads. Otherwise that job is a snap.
I just replaced both front bearings 2 months ago after 14 NE winters and road salt, those bolts were brutally tight and the bolt head flanges were beginning to thin out.
Nex time I will liquid wrench the bolts for a day, heat the bells out of them, wack the heads a few times, thighten them down first and then back them out. Hopefully that will save me a trip to the machine shop to remove 4 stripped heads. Otherwise that job is a snap.