Page 250
REPAIR INSTRUCTIONS
INSTALLATION PROCEDURE
1. Position the vibration damper and drive
pulley on the crankshaft hub.
2. Install the six mounting capscrews. Tighten
the capscrews to the specified torque,
45 lb-ft (61 N•m).
Oil Pan Installation
[211 NB]
GENERAL INFORMATION
With the isolating oil pan gasket arrangement,
8-mm mounting holes are tapped into the cylinder
block, front cover and flywheel housing.
Figure 271 shows the production arrangement.
Through late August 1999, the isolated oil pan
gasket mounting arrangement used shoulder
studs to secure the oil pan to the front timing
cover, flywheel housing and at certain locations
along the oil pan sides. Beginning approximately
late August 1999, the shoulder studs at the timing
cover and flywheel housing were changed to
shoulder capscrews (part No. 421GC289M), and,
approximately fourth quarter 1999, the shoulder
studs with a separate nut used at locations on the
sides of the oil pan were changed to a one-piece
integral hex-head shoulder stud assembly
(part No. 616GC39M3).
Prior to the fourth quarter 1999 introduction of the
one-piece integral hex-head shoulder stud
assembly, flat washers (part No. 37AX68) were
added to the shoulder studs (part No.
616GC239M) to compensate for the gap between
the nut and the shoulder stud and to ensure
sufficient clamp load to the gasket. This change
went into effect February 22, 1999, beginning
with engine serial No. 9C2735.
271
Figure 271 — Oil Pan Stud Identification
5_106_00.bk Page 250 Friday, August 4, 2000 11:17 AM
BDC for engine manuals and specs