Deere 1 Posted August 6, 2010 Share Posted August 6, 2010 Can someone tell me the torque spec and pattern for the head bolts on a 1990 Ch613 with a 300 Mack in it?Thanks, Lee Quote Link to comment https://www.bigmacktrucks.com/topic/15182-head-bolt-torque/ Share on other sites More sharing options...
rhasler Posted August 7, 2010 Share Posted August 7, 2010 Can someone tell me the torque spec and pattern for the head bolts on a 1990 Ch613 with a 300 Mack in it?Thanks, LeeHere are the torque specs from the Mack E7 service manual.Torque all head mounting capscrews in three stages to the specified torque.Torque all head mounting capscrews in sequence to 50 lb-ft (68 N•m).Torque all head mounting capscrews in sequence to 125 lb-ft (170 N•m).Torque all head mounting capscrews in sequence to final torque value of 205 lb-ft (278 N•m).E7 Head Bolt Torque Sequence.pdf Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/15182-head-bolt-torque/#findComment-61125 Share on other sites More sharing options...
Deere 1 Posted August 7, 2010 Author Share Posted August 7, 2010 Thanks for the helpLee Quote Link to comment https://www.bigmacktrucks.com/topic/15182-head-bolt-torque/#findComment-61147 Share on other sites More sharing options...
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