Majestic L6-4.0L (1990)
Bell Housing: Technical Service Bulletins
Engine Oil Sump - Install to Prevent Drive Plate Cracks
Engine Oil Sump - Installation Procedure -
To Prevent Engine Drive Plate Cracks
Incorrect installation of the engine oil sump can distort the transmission adaptor and cause the engine drive plate to crack.
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
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.
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.).