Engine Oil Sump - Install to Prevent Drive Plate Cracks

12-40

Engine Oil Sump - Installation Procedure -
To Prevent Engine Drive Plate Cracks

MODEL:
AJ6 Engines

DATE:
11/92

ISSUE:

Incorrect installation of the engine oil sump can distort the transmission adaptor and cause the engine drive plate to crack.

ACTION:

If the engine drive plate is cracked, perform the following:





^ Remove the drive plate. Check for distortion of the transmission adaptor using a straight edge across planes AB and CD, (Fig. 1).

^ If the adaptor is distorted, replace it. DO NOT install the two lower transmission to sump bolts at this time. Remove and install the engine sump as follows:

Revised oil sump installation procedure:

Refer to the XJS Service Manual section 12.60.38 and use the following additional instructions to seat the sump against the transmission adaptor:

^ While lifting the sump into position, push it rearward against the transmission adaptor.

^ Install four sump to crankcase bolts, two on each long side. Lightly tighten the four bolts in a diagonal pattern, then loosen 1/4 turn each. This will allow the sump to move as the adaptor plate bolts are tightened.

^ Install and tighten the two adaptor plate to sump bolts, then loosen 1/2 turn each.

NOTE:
If the transmission has been removed, use 1" spacers on the transmission to engine mounting bolts.

Install the remaining sump to crankcase bolts.

^ Torque all of the sump to crankcase bolts to 23-27, N-m (17-20 ft.lbs.)

^ Torque the two adaptor plate to sump bolts to 49-54 N-m (36-40 ft.lbs.).


WARRANTY INFORMATION:

Refer to the Warranty Codes & Repair Operation Times manual for appropriate fault codes and repair operation numbers.