Rear Hub Seal - Oil Leaks
12/31/9851/07/96/US
SUBJECT:
PRIDE - Rear Hub Seal Replacement
M0DEL:
Discovery
Discovery
Defender
AFFECTED VEHICLES:
LP
LJ up to TA197004
LJ up to TA527786
LD up to SA989050
DETAIL
On 1994-96 Discovery vehicles the rear hub oil seal may leak. The following procedure has been developed to replace the existing seal (FTC 2783) with an improved design (FTC 4785). If one hub seal is observed to be leaking, the hub seal on the opposite side of the axle must also be replaced. Vehicles past the above VIN range have the new seal factory fitted.
The diagnostic steps and repair procedures detailed in this bulletin were developed as an element of the Land Rover Way OPERATION PRIDE. This TIB provides a library location for PRIDE information within the Land Rover North America technical literature system.
ACTION REQUIRED
In the event of a rear hub seat leak, fit the latest improved seat.
PARTS INFORMATION
571752 - Gasket (qty. 1 per side)
FTC3185 - Washer key (qty. 1 per side)
FTC3179 - Washer Lock (qty. 1 per side)
FTC4785 - Hub Oil Seal (qty. 1 per side)
LRT-54-011 - Special Tool
PROCEDURE
Perform the repairs outlined in this bulletin for the rear hub seal replacement.
WARRANTY:
Normal warranty procedures and policies apply.
COMP.CODE:
SRO:
Rear LH: 54.15.15
Rear RH: 64.15.15/03 - Time 0.75 hr.
Replace rear hub seal
REAR REMOVAL
1. Place rear axle onto axle stands and remove road wheel.
2. Release brake hose clips and remove brake caliper bolts.
Take care to support caliper so brake hose is not stressed or kinked.
3. Remove five bolts and withdraw axle shaft.
4. Remove gasket.
5. Bend back lock washer tabs.
6. Remove locknut and lock washer. Discard lock washer.
7. Remove hub adjusting nut.
8. Remove spacing washer.
9. Remove hub and brake disc assembly.
10. Remove hub grease seal.
INSTALLATION
1. Apply grease between seal lips.
2. Install the new seal, lip side first, into hub using tool # LRT-54-011 (figure 2).
3. Clean stub axle. If applicable, retract ABS sensor slightly from sensor sleeve.
4. Install hub assembly onto stub axle.
5. Install spacing washer.
6. Fit hub nut.
7. Tighten hub nut to 50 Nm (37 lbf. ft.).
8. Rotate hub assembly and ensure free rotation with no bearing play.
9. Back nut off 90° and torque to 10 Nm (90 lbf. in.). This will give the required end play of 0.01 mm (0.0004 in).
10. Fit locking tab washer.
11. Fit second hub nut and tighten to 50 Nm (37 lbf. ft.).
12. Lock both inner and outer nuts with locking tab washer.
13. Using new gasket, install axle shaft into hub and secure with five bolts. Tighten to 65 Nm (48 lbf. ft.).
14. Install brake caliper. Tighten to 82 Nm (60 lbf. ft.). Secure brake hose to axle housing.
15. If applicable, push ABS sensor fully into bush until it touches sensor ring and rotate hub to set sensor.
16. Install road wheel and tighten nuts to 126 Nm (93 lbf. ft.).
17. Remove axle stands and operate foot brake to locate brake pads before road test.