Torque Specs For The Cummins KTA19

April 7, 2023

CYLINDER HEAD

PART/MATERIAL/COLOR

LENGTH

TORQUE VALUE IN NM [ FT-LB ]

SHINEY CHROME HEAD BOLT	170MM [6¾ IN]	1. 65 N•M [ 48 FT-LB ] 2. 160 N•M [ 118 FT-LB ] 3. 250 N•M [ 184 FT-LB ] 4. 345 N•M [ 254 FT-LB ]
BLACK HEAD BOLT	170 MM [6¾ IN]	1. 65 N•M [ 48 FT-LB ] 2. 200 N•M [ 148 FT-LB ] 3. 340 N•M [ 251 FT-LB ] 4. 490 N•M [ 361 FT-LB ]
ZINC PHOSPHATE GRAY HEAD BOLT	203 MM [8 IN]	1. 65 N•M [ 48 FT-LB ] 2. 200 N•M [ 148 FT-LB ] 3. 340 N•M [ 251 FT-LB ] 4. 490 N•M [ 361 FT-LB ]
ZINC PHOSPHATE GRAY BOLT	203 MM [8 IN]	1. 65 N•M [ 48 FT-LB ] 2. 200 N•M [ 148 FT-LB ] 3. 300 N•M [ 221 FT-LB ] 4. ADVANCE 90 DEGREES

OVERHEAD SET

PART/MATERIAL/COLOR

LENGTH

TORQUE VALUE IN NM [ FT-LB ]

ROCKER ADJUSTING SCREW	N/A	1. 11 N•M [ 100 IN-LB ] 2. LOOSEN ADJUSTING SCREW 1 REVOLUTION. 3. 10 N•M [ 90 IN-LB ]
ROCKER LOCK NUT W/ TORQUE WRENCH ADAPTER	N/A	1. 45 N•M [ 33 FT-LB ]
ROCKER LOCK NUT W/O ADAPTER	N/A	1. 60 N•M [ 44 FT-LB ]
INTAKE AND EXHAUST CROSSHEAD LOCK NUT	N/A	WITHOUT JACOBS® BRAKE (WITH ADAPTER) 1. 35 N•M [ 25 FT-LB ]
INTAKE AND EXHAUST CROSSHEAD LOCK NUT	N/A	WITHOUT JACOBS® BRAKE (WITH ADAPTER) 1. 40 N•M [ 30 FT-LB ]
INTAKE AND EXHAUST CROSSHEAD LOCK NUT	N/A	WITH JACOBS® BRAKE (WITH ADAPTER) 1. 40 N•M [ 30 FT-LB ]
INTAKE AND EXHAUST CROSSHEAD LOCK NUT	N/A	WITH JACOBS® BRAKE (WITH ADAPTER) 1. 45 N•M [ 33 FT-LB ]
VALVE ADJUSTMENTS (EXHAUST VALVE)	N/A	0.69 MM [0.027 IN]
VALVE ADJUSTMENTS (INTAKE VALVE)	N/A	0.36 MM [0.014 IN]
VALVE RECHECK LIMITS (EXHAUST)	N/A	MINIMUM OF 0.610 MM [0.024 IN]
VALVE RECHECK LIMITS (EXHAUST)	N/A	MINIMUM OF 0.762 MM [0.030 IN]
VALVE RECHECK LIMITS (INTAKE)	N/A	MINIMUM OF 0.279 MM [0.011 IN]
VALVE RECHECK LIMITS (INTAKE)	N/A	MINIMUM OF 0.432 MM [0.017 IN]
VALVE LASH CLEARANCE – VALVE LASH SPECIFICATION FOR TIGHTENING ADJUSTING SCREWS (TORQUE WRENCH METHOD)	N/A	TIGHTEN THE ADJUSTING SCREW TO 0.68 N•M [6 IN-LB] AGAINST THE FEELER GUAGE
VALVE LASH CLEARANCE – VALVE LASH SPECIFICATION FOR TIGHTENING ADJUSTING SCREWS (TORQUE WRENCH METHOD W/ ADAPTER)	N/A	45 N•M [ 33 FT-LB ]
VALVE LASH CLEARANCE – VALVE LASH SPECIFICATION FOR TIGHTENING ADJUSTING SCREWS (TORQUE WRENCH METHOD W/O ADAPTER)	N/A	60 N•M [ 44 FT-LB ]
VALVE LASH CLEARANCE – VALVE LASH SPECIFICATION FOR TIGHTENING ADJUSTING SCREWS (FEEL METHOD) *	N/A	TURN THE ADJUSTING SCREW UNTIL THE LEVER TOUCHES THE FEELER GAUGE USING A NUT DRIVER
VALVE LASH CLEARANCE – VALVE LASH SPECIFICATION FOR TIGHTENING LOCK NUT W/ TORQUE WRENCH ADAPTER	N/A	1. 45 N•M [ 33 FT-LB ]
VALVE LASH CLEARANCE – VALVE LASH SPECIFICATION FOR TIGHTENING LOCK NUT W/O TORQUE WRENCH ADAPTER	N/A	1. 60 N•M [ 44 FT-LB ]

* NOTE: WHEN USING THE FEEL METHOD, attempt to insert a feeler gauge 0.03 mm [0.001 in] thicker than used for setting the valve lash.

The valve lash is not correct if the feeler gauge will fit.

Repeat the adjustment process until the clearance is correct on both the intake and exhaust valves.

CRANKSHAFT

PART/MATERIAL/COLOR

LENGTH

TORQUE VALUE IN NM [ FT-LB ]

CRANKSHAFT BEARING CAPSCREWS

N/A

1. 265 N•M [ 195 FT-LB ]
2. 605 N•M [ 445 FT-LB ]
3. LOOSEN
4. 265 N•M [ 195 FT-LB ]
5. 605 N•M [ 445 FT-LB ] *

* NOTE: Use the following steps and tighten the cap-screws in the sequence shown in the graphic.

PART/MATERIAL/COLOR

LENGTH

TORQUE VALUE IN NM [ FT-LB ]

CRANKSHAFT COUNTERWEIGHT CAPSCREWS

N/A

142 N•M [ 105 FT-LB ]

CAM FOLLOWER

PART/MATERIAL/COLOR

LENGTH

TORQUE VALUE IN NM [ FT-LB ]

CAM FOLLOWER SLOTTED CAPSCREWS

N/A

39 TO 42 N•M [29 TO 31 FT-LB]

PISTON AND CONNECTING ROD ASSEMBLY

PART/MATERIAL/COLOR

LENGTH

TORQUE VALUE IN NM [ FT-LB ]

CONNECTING ROD CAPSCREWS

N/A

1. 102 N•M [ 75 FT-LB ]
2. 197 N•M [ 145 FT-LB ]
3. 292 N•M [ 215 FT-LB ]
4. 366 N•M [ 270 FT-LB ]
5. LOOSEN BOTH CAPCSCREWS TO REMOVE ALL TENSION.
6. 102 N•M [ 75 FT-LB ]
7. 149 N•M [ 110 FT-LB ]
PLUS 90° TO ACHIEVE CORRECT BOLT STRETCH.