Front and rear axle-pinion oil leak

FRONT AND REAR AXLE-PINION OIL LEAK

Model

New Range Rover-all derivatives

Affected vehicles

300000 onwards

Date

1995-09-27

Reference

27/09/95

Bulletin text

Front and Rear Axle-Pinion Oil Seal Leak

MODEL

New Range Rover-all derivatives

DETAIL

New Range Rover enquiries through the nerve centre have identified a small number of vehicles that have an oil leak from the differential pinion oil seal. Investigations by Land Rover transmission engineers have found that although a seal when replaced may initially overcome oil leaks from this area, the root cause may be due to an incorrectly machined differential drive flange, If the drive flange has been machined away from tolerance, it can result in flange peripheral run out and flange face run out.

Note: This bulletin supersedes 51/01/95/EN information in the SRO box has been amended

ACTION REQUIRED

Upon pre-delivery service or customer complaint follow the procedure below

PARTS INFORMATION

Input shaft seal FTC 2016

Input flange FTC 1853

PROCEDURE

In the event of a pinion seal oil leak carry out the following procedure.

1) Remove the propshaft. 2) Using a dial test indicator measure and record - drive flange spigot concentricity, -drive flange face run out. 3) Remove drive flange (do not wipe seal clean) and retain for return to Land Rover. 4) Check for dirt ingress between main seal lip and dust lip - record findings. 5) Check if seal is square to pinion housing end face - record findings. 6) Check seal for any damage and record findings. 7) Remove seal as carefully as possible and retain for return to Land Rover . 8) Fit new seal in accordance with the workshop manual section 51,( ensure seal is square and flush to the housing end face.

Issue 2 27/09/95 NRR/51/01/95/EN

AFFECTED VEHICLES

LP 300000 onwards LH LJ LD

WARRANTY

Normal warranty policy and procedures apply

COMP. CODE

4S1N 4S5N

SRO

51.20.01 Rear oil seal pinion renew 00.40 hour 54.10.20 Front oil seal pinion renew 00.40 hour 51.20.89/26 Check with Dti and re-position flange 00.30 hour

Front and Rear Axle-Pinion Oil Seal Leak

MODEL

New Range Rover-all derivatives

9) Inspect the new drive flange for sharp edges or damage which may affect sealing performance. NOTE: a replacement drive flange must be used if any damage is evident ie scratching / bruising. 10) Fit new drive flange in accordance with the workshop manual section 51. 11) Using a DTI check the drive flange Maximum permissible run out - 0.004 Face run out 0.004 NOTE: run out and face run out may be optimised by removing the driveflange and rotating it through 180 degrees prior to refitting. 12) UK market only - Return the seal, driveflange and the inspection results to Land Rover Service. European and restof world markets fax results to Land Rover Service marked for the attention of the Nerve Centre. Facsimile Number 021-742-8310.

27/09/95 NRR/51/01/95/EN

AFFECTED VEHICLES

LP 300000 onwards LH LJ LD