
Rocker Housing Covers
• Big Cam IV/New Big Cam IV 20 15
• 88 Big Cam IV 16 12
Note: Tighten in the sequence shown.
Oil Pan (7/16-inch Mounting Capscrews) 20 15
Note: Tighten one of the 7/16-inch oil pan mounting capscrews on each side of the oil pan, halfway
between the front and the rear of the oil pan.
Oil Pan
• Four 5/16-inch capscrews in rear of 25 20
the oil pan.
• Thirty-two 7/16-inch capscrews 70 50
Note: Tighten in the sequence shown.
Lubricating Oil Transfer Tube
• First, tighten the two capscrews (1)
at the oil pan. 45 35
• Second, tighten the capscrews (2)
at the lubricating oil pump. 45 35
DFC Signal Line Tube Nuts 15 120 in-lb
Aftercooler
• Big Cam IV Unitized Aftercooler 70 50
Note: Tighten the nine capscrews in the sequence shown. Use only grade 8 capscrews.
Air Compressor 65 50
Specifications Engine Assembly - Capscrew Torque Values
NT 855 Page 18-19
Torque Values
Part or Assembly Step N•m ft-lb
Perfect..