
Water Pump Belt (88 Big Cam IV)
• New Belt Tension 620 N 140 lbf
• Used Belt Tension 270-490 N 60-110 lbf
Note: A belt is considered used if it has been in operation for more than 10 minutes. If
used belt tension is below the minimum, tighten to the maximum value.
Idler Pulley (88 Big Cam IV) 45 35
Fan Hub Support Bracket 100 75
Brace to Fan Hub Bracket 70 50
Brace to Rocker Housing 80 60
Fan Drive Belts
• New Belt Tension 620 N 140 lbf
• Used Belt Tension 270-490 N 60-110 lbf
Note: A belt is considered used if it has been in operation for more than 10 minutes. If the belt
tension is below the minimum, tighten to the maximum value.
Fan Hub 110 80
Piston Cooling Nozzles
• Hexagon Head 15 140 in-lb
• Slotted Head 10 95 in-lb
Engine Assembly - Capscrew Torque Values Specifications
Page 18-22 NT 855
Torque Values
Part or Assembly Step N•m ft-lb
Perfect..