SEAT Workshop Service and Repair Manuals

Notes:

• ◆ Heat taper roller bearing inner race to
  100 °C before installing.
• ◆ Always renew both taper roller bearings together as a set.
• ◆ If differential housing, gearbox housing or clutch housing taper roller bearings are renewed adjust differential .

• Circlip
• ◆ Always renew
• Protective cap
• ◆ Pressing off => Fig.13
• ◆ Pressing on => Fig.15

• Centre bearing
• ◆ Pressing off => Fig.13
• ◆ Pressing on => Fig.14
• Axle shaft
• Oil seal
• ◆ Pulling out => Fig.1
• ◆ Driving in =>Fig.2
• Clutch housing
• Shim
• ◆ For differential
• ◆ Determining thickness => Page 39-21
• Taper roller bearing outer race
• ◆ Pressing out => Fig.3
• ◆ Pressing in => Fig.4
• Taper roller bearing inner race
• ◆ Pulling off => Fig.5
• ◆ Pressing on => Fig.6

• Speedometer drive wheel
• ◆ Fit onto differential housing as far as stop before pressing on inner race
• ◆ Must engage in housing cut-out
• Hexagon bolt, 85 Nm
• Differential cage
• ◆ Bolt to final drive gear => Fig.8
• ◆ When renewing: Observe adjustment overview => Page 39-20
• Final drive gear wheel
• ◆ Bolt to differential housing => Fig.8
• ◆ Pressing off => Fig.7
• ◆ Is paired with output shaft, only renew as a set

• Taper roller bearing inner race
• ◆ Pulling off => Fig.5
• ◆ Pressing on => Fig.6
• Taper roller bearing outer race
• ◆ Pulling out => Fig.9
• ◆ Pressing in => Fig.10
• Gearbox housing
• Thrust washer
• ◆ For sun wheels
• Sun wheel
• ◆ Installing => Fig.12
• Planet pinion axis shaft
• ◆ Knock out with drift
• Thrust washer
• ◆ For planet pinions
• Planet pinion
• ◆ Installing => Fig.12
• Spring pin
• ◆ For securing planet pinion axis shaft
• ◆ Removing and installing => Fig.11

→ Fig.1    Pulling out oil seal.

A - Counter support, e.g. Kukko 22/2

B - Internal puller 36...46 mm, e.g. Kukko 21/6

Note:

Pulling the left and right-hand seals out is the same.

→ Fig.2    Driving in oil seal

Note:

Pressing the left and right-hand seals in is the same.

→ Fig.3    Pressing taper roller bearing outer race -A- out from clutch housing

B - Internal puller 46...58 mm, e.g. Kukko 21/7

→ Fig.4    Pressing taper roller bearing outer race into clutch housing

• ‒ Fit shim under outer race.

→ Fig.5    Pulling off taper roller bearing inner race

• ‒ Before fitting the extractor position press piece 40-105 on differential housing.

Note:

Both both taper roller bearing inner races are pulled off the differential housing in the same way.

→ Fig.6    Pressing on taper roller bearing inner race

Note:

The taper roller bearing inner races for gearbox housing and clutch housing are pressed on with the same press tools.

→ Fig.7    Pressing off final drive gear

• ‒ Place thrust piece 40-105 on differential housing.

→ Fig.8     Bolting final drive gear and differential housing together

Note:

Tighten final drive gear wheel evenly and diagonally.

→ Fig.9    Pulling taper roller bearing outer race out from gearbox housing

A - Counter support, e.g. Kukko 22/2

B - Internal puller 46...58 mm, e.g. Kukko 21/7

→ Fig.10    Pressing taper roller bearing outer race into gearbox housing

→ Fig.11    Removing and installing planet wheel axis shaft spring pin

Removing

• ‒ Knock into planet pinion axis shaft.
• ‒ Knock-out of planet pinion axis shaft when shaft has been removed.

Installing

• ‒ Knock-in flush with differential housing.

→ Fig.12    Installing differential bevel wheels

• ‒ Coat thrust washer for sun wheel with oil and fit on sun wheel.
• ‒ Install both sun wheels and secure.
• ‒ Coat thrust washer for planet wheel with oil and fit on planet wheel.
• ‒ Insert planet wheels turned through 180°and pivot into position (arrow).
• ‒ Drive planet wheel axis shaft into final position and secure with spring pin.

→ Fig.13    Pressing off centre bearing with protective cap

→ Fig.14    Pressing on centre bearing

→ Fig.15    Pressing on protective cap