5_108.bk Page 206 Thursday, October 4, 2001 11:45 AM
REPAIR INSTRUCTIONS 8. Reposition the cap on the journal. Lubricate the capscrews with clean engine oil of the proper specification. Lubricate and install the bearing cap buttress capscrews as required, finger-tight. Install the bearing cap capscrews and tighten to the specified torque value, using torque wrench J 24407, or equivalent.
New standard bearing inserts (manufacturing date of 10-00 or later) are 0.0006 inch larger than the old standard bearings. These new bearings reduce the bearing running clearance to provide a slight increase in engine oil pressure. This reduction of bearing running clearance makes it absolutely essential that Plastigage check be performed to verify that a minimum running clearance of 0.0018 inch (0.045 mm) is maintained.
Refer to Figure 274.
There are two buttress capscrew dimensions: r
LH side 2, 3, 5, 6 and RH side 5 and 6 (6 total) are 80 mm long (1).
r
RH side FRT 2 and 3 (2 total) are 110 mm long (2).
274
Figure 274 — Buttress Capscrew Locations 1. 80-mm Buttress Capscrews
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2. 110-mm Buttress Capscrews
