Rocker Arm: Installation

WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

Both sides

NOTE: To prevent engine damage, keep the push rods in the order in which they were removed. Install all push rods back in their original positions.

Install the push rods into their respective positions.

Courtesy of FORD MOTOR COMPANY

RH rocker arm, single assembly
Rotate the crankshaft clockwise and position cylinder number No. 1 approximately 155 degrees after TDC by observing the crankshaft pulley dowel pin and clocking it to the 3:40 position (as viewed from the front of the engine).

Courtesy of FORD MOTOR COMPANY
- NOTE: Apply clean engine oil to the push rod ball end prior to installing the rocker arm assembly.
  
  NOTE: Apply clean engine oil to each rocker arm pivot ball prior to installing the rocker arm assembly.
  
  NOTE: Verify that the push rod socket is on the hydraulic lash adjuster prior to installing the rocker arm assemblies.
  
  Determine which cylinder is actually in the firing position by observing the push rods. No. 1 cylinder exhaust push rods should be raised 1.0 mm (0.039 in) and No. 4 cylinder exhaust push rods should be raised 1.5 mm (0.059 in). If the push rods are not in the correct position, rotate the engine one full revolution clockwise (360 degrees).
- Install the rocker arm assemblies for the RH cylinder head (cylinder numbers 1, 2, 3 and 4).
  Material: Motorcraft ® SAE 10W-30 Super Duty Diesel Motor Oil / XO-10W30-QSD (WSS-M2C171-E)
- Verify that the top of the push rod engages the socket on each rocker arm.
  Torque:
  
  Stage 1: 35 lb.in (4 Nm)
  
  Stage 2: 71 lb.in (8 Nm)
  
  Stage 3: 115 lb.in (13 Nm)
  
  Stage 4: Tighten a second time to : 115 lb.in (13 Nm)
  
  Stage 5: Tighten an additional : 80 °
Courtesy of
If removed, install the new O-ring seal on the RH oil spray bar.

Courtesy of FORD MOTOR COMPANY
NOTE: Failure to install the oil spray bar in steps may result in damage to the oil spray bar.

Install the RH oil spray bar. Turn the nuts 2 revolutions at a time in the sequence shown until the RH oil spray bar nuts can be tightened.

Torque: 106 lb.in (12 Nm)

Fig 1: RH Oil Spray Bar Tightening Sequence
Courtesy of FORD MOTOR COMPANY

RH rocker arm, all assemblies
Rotate the crankshaft clockwise and position cylinder number No. 1 approximately 155 degrees after TDC by observing the crankshaft pulley dowel pin and clocking it to the 3:40 position (as viewed from the front of the engine).

Courtesy of FORD MOTOR COMPANY
- NOTE: Apply clean engine oil to the push rod ball end prior to installing the rocker arm assembly.
  
  NOTE: Apply clean engine oil to each rocker arm pivot ball prior to installing the rocker arm assembly.
  
  NOTE: Verify that the push rod socket is on the hydraulic lash adjuster prior to installing the rocker arm assemblies.
  
  Determine which cylinder is actually in the firing position by observing the push rods. No. 1 cylinder exhaust push rods should be raised 1.0 mm (0.039 in) and No. 4 cylinder exhaust push rods should be raised 1.5 mm (0.059 in). If the push rods are not in the correct position, rotate the engine one full revolution clockwise (360 degrees).
- Install the rocker arm assemblies for the RH cylinder head (cylinder numbers 1, 2, 3 and 4).
  Material: Motorcraft ® SAE 10W-30 Super Duty Diesel Motor Oil / XO-10W30-QSD (WSS-M2C171-E)
- Verify that the top of the push rod engages the socket on each rocker arm.
  Torque:
  
  Stage 1: 35 lb.in (4 Nm)
  
  Stage 2: 71 lb.in (8 Nm)
  
  Stage 3: 115 lb.in (13 Nm)
  
  Stage 4: Tighten a second time to : 115 lb.in (13 Nm)
  
  Stage 5: Tighten an additional : 80 °
Fig 2: RH Rocker Arm Tightening Sequence
Courtesy of FORD MOTOR COMPANY
If removed, install the new O-ring seal on the RH oil spray bar.

Courtesy of FORD MOTOR COMPANY
NOTE: Failure to install the oil spray bar in steps may result in damage to the oil spray bar.

Install the RH oil spray bar. Turn the nuts 2 revolutions at a time in the sequence shown until the RH oil spray bar nuts can be tightened.

Torque: 106 lb.in (12 Nm)

Courtesy of FORD MOTOR COMPANY

LH rocker arm, single assembly
Rotate the crankshaft clockwise one full revolution (360 degrees) to 155 degrees after TDC by observing the crankshaft pulley dowel pin and clocking it to the 3:40 position (as viewed from the front of the engine).

Courtesy of FORD MOTOR COMPANY
- NOTE: Apply clean engine oil to the push rod ball end prior to installing the rocker arm assembly.
  
  NOTE: Apply clean engine oil to each rocker arm pivot ball prior to installing the rocker arm assembly.
  
  NOTE: Verify that the push rod socket is on the hydraulic lash adjuster prior to installing the rocker arm assemblies.
  
  If installing the LH rocker arm assemblies only, determine which cylinder is actually in the firing position by observing the push rods. No. 6 cylinder exhaust push rods should be raised 1.0 mm (0.039 in) and No. 7 cylinder exhaust push rods should be raised 1.5 mm (0.059 in). If the push rods are not in the correct position, rotate the engine one full revolution clockwise (360 degrees).
- Install the rocker arm assemblies for the LH cylinder head (cylinder numbers 5, 6, 7 and 8).
  Material: Motorcraft ® SAE 10W-30 Super Duty Diesel Motor Oil / XO-10W30-QSD (WSS-M2C171-E)
- Verify that the top of the push rod engages the socket on each rocker arm.
  Torque:
  
  Stage 1: 35 lb.in (4 Nm)
  
  Stage 2: 71 lb.in (8 Nm)
  
  Stage 3: 115 lb.in (13 Nm)
  
  Stage 4: Tighten a second time to : 115 lb.in (13 Nm)
  
  Stage 5: Tighten an additional : 80 °
Courtesy of FORD MOTOR COMPANY
If removed, install the new O-ring seal on the LH oil spray bar.

Courtesy of FORD MOTOR COMPANY
NOTE: Failure to install the oil spray bar in steps may result in damage to the oil spray bar.

Install the LH oil spray bar. Turn the nuts 2 revolutions at a time in the sequence shown until the LH oil spray bar nuts can be tightened.

Torque: 106 lb.in (12 Nm)

Fig 3: LH Oil Spray Bar Tightening Sequence
Courtesy of FORD MOTOR COMPANY

LH rocker arm, all assemblies
Rotate the crankshaft clockwise one full revolution (360 degrees) to 155 degrees after TDC by observing the crankshaft pulley dowel pin and clocking it to the 3:40 position (as viewed from the front of the engine).

Courtesy of FORD MOTOR COMPANY
- NOTE: Apply clean engine oil to the push rod ball end prior to installing the rocker arm assembly.
  
  NOTE: Apply clean engine oil to each rocker arm pivot ball prior to installing the rocker arm assembly.
  
  NOTE: Verify that the push rod socket is on the hydraulic lash adjuster prior to installing the rocker arm assemblies.
  
  If installing the LH rocker arm assemblies only, determine which cylinder is actually in the firing position by observing the push rods. No. 6 cylinder exhaust push rods should be raised 1.0 mm (0.039 in) and No. 7 cylinder exhaust push rods should be raised 1.5 mm (0.059 in). If the push rods are not in the correct position, rotate the engine one full revolution clockwise (360 degrees).
- Install the rocker arm assemblies for the LH cylinder head (cylinder numbers 5, 6, 7 and 8).
  Material: Motorcraft ® SAE 10W-30 Super Duty Diesel Motor Oil / XO-10W30-QSD (WSS-M2C171-E)
- Verify that the top of the push rod engages the socket on each rocker arm.
  Torque:
  
  Stage 1: 35 lb.in (4 Nm)
  
  Stage 2: 71 lb.in (8 Nm)
  
  Stage 3: 115 lb.in (13 Nm)
  
  Stage 4: Tighten a second time to : 115 lb.in (13 Nm)
  
  Stage 5: Tighten an additional : 80 °
Fig 4: LH Rocker Arm Tightening Sequence
Courtesy of FORD MOTOR COMPANY
If removed, install the new O-ring seal on the LH oil spray bar.

Courtesy of FORD MOTOR COMPANY
NOTE: Failure to install the oil spray bar in steps may result in damage to the oil spray bar.

Install the LH oil spray bar. Turn the nuts 2 revolutions at a time in the sequence shown until the LH oil spray bar nuts can be tightened.

Torque: 106 lb.in (12 Nm)

Courtesy of FORD MOTOR COMPANY

Both sides
Install the RH valve cover or LH valve cover. Refer to: Valve Cover RH . Refer to: Valve Cover LH .