Cummins Isx Head Bolt Torque
| Tool | Purpose | |------|---------| | (250 ft·lb capacity) | Initial 60 & 90 ft·lb stages | | Angle gauge (electronic or mechanical) | +180° and +90° stages | | 30W engine oil | Thread lubricant (never use grease or anti-seize – alters friction) | | Thread chaser (M18x2.5) | Clean block threads | | Straight edge & feeler gauges | Check head flatness | | Liner protrusion gauge | Verify liner height before head install | | New TTY head bolt set | 26–28 bolts + washers (if separate) |
Before you start swinging a king-size torque wrench, preparation is key to preventing "false torque" readings. cummins isx head bolt torque