torque
torque
05-08-2011, 03:24 PM
#3
Cummins Guru
03 and up common rail 5.9
Install fuel injector holdown clamp (mounting flange) bolts. Do a preliminary tightening of these bolts to 5 N·m (44 in. lbs.) torque. This preliminary tightening insures the fuel injector is seated and centered. After tightening, relieve bolt torque, but leave both bolts threaded in place.
If required, assemble o-ring to injector fuel supply connector. Lubricate connector bore and threads. Install fuel supply connector into cylinder head by engaging locator into groove and push to engage o-ring. Install fuel supply connector nut (fitting) into cylinder head. Do a preliminary tightening of this nut to 15 N·m (11 ft. lbs.) torque.
Perform final tightening of fuel injector mounting clamp bolts to 10 N·m (89 in. lbs.) torque.
Perform final tightening of fuel connector nut to 50 N·m (37 ft. lbs.) torque.
Install fuel injector holdown clamp (mounting flange) bolts. Do a preliminary tightening of these bolts to 5 N·m (44 in. lbs.) torque. This preliminary tightening insures the fuel injector is seated and centered. After tightening, relieve bolt torque, but leave both bolts threaded in place.
If required, assemble o-ring to injector fuel supply connector. Lubricate connector bore and threads. Install fuel supply connector into cylinder head by engaging locator into groove and push to engage o-ring. Install fuel supply connector nut (fitting) into cylinder head. Do a preliminary tightening of this nut to 15 N·m (11 ft. lbs.) torque.
Perform final tightening of fuel injector mounting clamp bolts to 10 N·m (89 in. lbs.) torque.
Perform final tightening of fuel connector nut to 50 N·m (37 ft. lbs.) torque.
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