This tutorial is also available in French
➔
Front wheel bearings change on Austin Mini
Vehicle ➔ Mini 1000 year 1988
Difficulty ➔ Medium
Time ➔ 3 hours
Summary
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Use a very good quality ball joint puller to remove the track rod end and the ball joint because the force required is very important. If you break your ball joint puller, do not hesitate to invest in a better quality tool.
A bearing seal removed with a screwdriver is usually damaged. Provide a new seal before each disassembly.
The bearings are pre-adjusted assemblies. Each bearing's rings and rollers are held together with a plastic tie in the packaging. Never mix the elements of one bearing with those of another. This could impair their operation.
Required Tools
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Packaging :
•
GHK1140 : Bearing kit for one wheel (2 bearings + 1 spacer + 2 seals + 1 protective ring + 1 split pin). This kit can only be fitted on swivel hubs with disc brakes.
• The nuts and washers above are sold individually.
• The nuts and washers above are sold individually.
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Remove the swivel hub
Op 01
Remove the wheel and the brake pads (➔ see the tutorial ''Front brake pads change'' Op 01 to 06).
Op 02
Remove the caliper and the drive flange (➔ see the tutorial ''Front brake discs change'' Op 02 to 07).
Op 03
Remove the track rod end fixing nut. Use the 14 mm socket.
Op 04
Remove the brake disc shield.
Op 05
Detach the track rod end. Use the ball joint puller.
Op 06
Remove the upper ball joint fixing nut. Use the 18 mm socket.
Op 07
Detach the upper ball joint. Use the ball joint puller.
Op 08
Remove the lower ball joint fixing nut. Use the 18 mm socket.
Op 09
Detach the lower ball joint. Use the ball joint puller.
Op 10
Remove the swivel hub. Pull by hand.
Op 11
Remove the protective ring. Pull by hand.
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Remove the bearings
Op 12
Remove the outer seal. Use the flathead screwdriver.
The screwdriver must be long enough to have sufficient leverage.
Op 13
Remove the inner ring of the outer bearing (with its roller cage).
Op 14
Turn the swivel hub over and remove the inner seal.
Op 15
Remove the inner seal spacer.
Op 16
Remove the inner ring of the inner bearing (with its roller cage).
Op 17
Remove the bearing spacer.
Op 18
Remove the outer ring of the outer bearing. Use the pin punch and hammer.
Op 19
Remove the outer ring of the inner bearing. Use the pin punch and hammer.
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Fit the bearings
Op 20
Cut the 2 old outer bearing rings. Use the grinder.
These rings will be used to position the outer rings of the new bearings. This method can be used if you do not have a hydraulic press.
Op 21
Fit the outer ring of the new outer bearing (kit GHK1140).
Drive the ring in deeply. Use an old cut ring and a mallet.
Once the new ring is in place, the cut ring can be removed very easily by hand.
Op 22
Fit the outer ring of the new inner bearing (kit GHK1140).
Use the 2 old cut rings because this new ring is driven in more deeply.
Op 23
Fit the inner ring of the outer bearing (with its roller cage).
Grease the bearing abundantly.
Op 24
Fit the outer seal (kit GHK1140). The seal goes in easily by hand.
Pack grease into the space between the bearing and the seal.
The seal should be flush with the end of the swivel hub.
Op 25
Fit the bearing spacer (kit GHK1140).
Op 26
Fit the inner ring of the inner bearing (with its roller cage).
Grease the bearing abundantly.
Op 27
Fit the inner seal spacer (kit GHK1140).
Op 28
Fit the inner seal (kit GHK1140).
Pack grease into the space between the bearing and the seal.
A tip for identifying the inner seal : it has a lip on its outer face.
The seal must bear against the spacer.
You can use a cut ring and the mallet again to drive in the seal.
Fit the swivel hub
Op 29
Fit the protective ring (kit GHK1140) on the CV joint shaft.
It must be 6 mm from the shoulder. Use a ruler.
Grease the outer face of the protective ring.
Op 30
Engage the swivel hub on the CV joint shaft.
Engage the lower ball joint in the lower arm and the upper ball joint in the upper arm.
Fit the spring washers (GFK1127) and lightly screw on the nuts (GFK3214) of the 2 ball joints.
Op 31
Screw on the nuts of the lower and upper ball joints. Use the 18 mm socket.
Op 32
Tighten the nuts of the ball joints to a torque of 52 mN. Use the torque wrench + the 18 mm socket.
Op 33
Fit the brake disc shield.
Op 34
Engage the track rod end in the steering arm and in the stiffener bracket of the brake disc shield.
Op 35
Screw on the track rod end nut (GFK3323). Use the 14 mm socket.
Tighten this nut to a torque of 30 mN. Use the torque wrench.
Op 36
Fit the drive flange and the caliper (➔ see the tutorial ''Front brake discs change'' Op 12 to 18).
Op 37
Fit the brake pads and the wheel (➔ see the tutorial ''Front brake pads change'' Op 10 to 16).
The End
