Engine Mechanical: Mechanical: Engine: Installation: Camshaft

Illustration	Tool Name	Tool Number
	Camshaft Alignment Tool	303-1248

All camshafts 

CAUTION: The crankshaft must remain in the freewheeling position (crankshaft dowel pin at 9 o'clock) until after the camshafts are installed and the valve clearance is checked/adjusted. Do not turn the crankshaft until instructed to do so. Failure to follow this process will result in severe engine damage.
1. Rotate the crankshaft counterclockwise until the crankshaft dowel pin is in the 9 o'clock position.
Fig 1: Rotating Crankshaft Counterclockwise Until Crankshaft Dowel Pin Is In 9 O'clock Position
Courtesy of FORD MOTOR CO.

LH camshafts 

CAUTION: The camshafts must remain in the neutral position during installation or engine damage may occur.
NOTE: Coat the camshafts with clean engine oil prior to installation.
2. Position the camshafts onto the LH cylinder head in the neutral position as shown.
Fig 2: Verifying LH Camshafts Are In Neutral Position
Courtesy of FORD MOTOR CO.
NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.
3. Install the 8 camshaft caps and the 16 bolts.
   • Tighten in the sequence shown to 10 Nm (89 lb-in).
Fig 3: Installing Camshaft Caps & Bolts In Sequence
Courtesy of FORD MOTOR CO.

RH camshafts 

CAUTION: The camshafts must remain in the neutral position during installation or engine damage may occur.
NOTE: Coat the camshafts with clean engine oil prior to installation.
4. Position the camshafts onto the RH cylinder head in the neutral position as shown.
Fig 4: Positioning Camshafts Onto RH Cylinder Head In Neutral Position
Courtesy of FORD MOTOR CO.
NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.
5. Install the 8 camshaft caps and the 16 bolts.
   • Tighten in the sequence shown to 10 Nm (89 lb-in).
Fig 5: Installing Camshaft Caps & Bolts In Sequence
Courtesy of FORD MOTOR CO.

All camshafts 

CAUTION: If any components are installed new, the engine valve clearance must be checked/adjusted or engine damage can occur.
NOTE: Use a camshaft sprocket bolt to turn the camshafts.
6. Using a feeler gauge, confirm that the valve tappet clearances are within specification. If valve tappet clearances are not within specification, the clearance must be adjusted by installing new valve tappet(s) of the correct size. For additional information, refer to Valve Clearance Check .
Fig 6: Measuring Valve Clearance
Courtesy of FORD MOTOR CO.

LH camshafts 

NOTE: Use a camshaft sprocket bolt to turn the camshafts.
7. Rotate the LH camshafts to the top dead center (TDC) position and install the special tool on the flats of the camshafts.
Fig 7: Installing Special Tool (303-1248) On Flats Of Camshafts
Courtesy of FORD MOTOR CO.
8. Assemble the LH variable camshaft timing (VCT) assembly, the LH exhaust camshaft sprocket and the LH secondary timing chain.
   • Align the colored links with the timing marks.
Fig 8: Aligning LH Exhaust Camshaft Sprocket & LH Secondary Timing Chain Colored Links With Timing Marks
Courtesy of FORD MOTOR CO.
9. Position the LH secondary timing assembly onto the camshafts.
Fig 9: Positioning LH Secondary Timing Assembly Onto Camshafts
Courtesy of FORD MOTOR CO.
10. Install 2 new bolts and the original washer. Tighten in 4 stages.
    • Stage 1: Tighten to 40 Nm (30 lb-ft).
    • Stage 2: Loosen one full turn.
    • Stage 3: Tighten to 10 Nm (89 lb-in).
    • Stage 4: Tighten 90 degrees.
Fig 10: Locating LH VCT Assembly Bolt & LH Exhaust Camshaft Sprocket Bolt
Courtesy of FORD MOTOR CO.
11. Remove the lock pin from the LH secondary timing chain tensioner.
Fig 11: Locating Lock Pin On LH Secondary Timing Chain Tensioner
Courtesy of FORD MOTOR CO.

RH camshafts 

NOTE: Use a camshaft sprocket bolt to turn the camshafts.
12. Rotate the RH camshafts to the TDC position and install the special tool on the flats of the camshafts.
Fig 12: Installing Special Tool (303-1248) On Flats Of Camshafts
Courtesy of FORD MOTOR CO.
13. Assemble the RH VCT assembly, the RH exhaust camshaft sprocket and the RH secondary timing chain.
    • Align the colored links with the timing marks.
Fig 13: Aligning RH Exhaust Camshaft Sprocket & RH Secondary Timing Chain Colored Links With Timing Marks
Courtesy of FORD MOTOR CO.
14. Position the RH secondary timing assembly onto the camshafts.
Fig 14: Positioning RH Secondary Timing Assembly Onto Camshafts
Courtesy of FORD MOTOR CO.
15. Install 2 new bolts and the original washer. Tighten in 4 stages.
    • Stage 1: Tighten to 40 Nm (30 lb-ft).
    • Stage 2: Loosen one full turn.
    • Stage 3: Tighten to 10 Nm (89 lb-in).
    • Stage 4: Tighten 90 degrees.
Fig 15: Locating RH VCT Assembly Bolt & RH Exhaust Camshaft Sprocket Bolt
Courtesy of FORD MOTOR CO.
16. Remove the lock pin from the RH secondary timing chain tensioner.
Fig 16: Identifying Lock Pin On RH Secondary Timing Chain Tensioner
Courtesy of FORD MOTOR CO.

All camshafts 

17. Rotate the crankshaft clockwise 60 degrees to the TDC position (crankshaft dowel pin at 11 o'clock).
Fig 17: Identifying Crankshaft Dowel Pin At 11 O'clock
Courtesy of FORD MOTOR CO.
18. Install the primary timing chain with the colored links aligned with the timing marks on the VCT assemblies and the crankshaft sprocket.
Fig 18: Aligning Timing Marks On VCT Assemblies & Crankshaft Sprocket
Courtesy of FORD MOTOR CO.
19. Install the lower LH primary timing chain guide and the 2 bolts.
    • Tighten to 10 Nm (89 lb-in).
Fig 19: Locating Lower LH Primary Timing Chain Guide Bolts
Courtesy of FORD MOTOR CO.
20. Install the primary timing chain tensioner arm.
Fig 20: Locating Primary Timing Chain Tensioner Arm
Courtesy of FORD MOTOR CO.
21. Reset the primary timing chain tensioner.
    • Rotate the lever counterclockwise.
    • Using a soft-jawed vise, compress the plunger.
    • Align the hole in the lever with the hole in the tensioner housing.
    • Install a suitable lock pin.
Fig 21: Compressing Plunger Using A Soft-Jawed Vise
Courtesy of FORD MOTOR CO.
NOTE: It may be necessary to rotate the crankshaft slightly to remove slack from the timing chain and install the tensioner.
22. Install the primary tensioner and the 2 bolts.
    • Tighten to 10 Nm (89 lb-in).
    • Remove the lock pin.
Fig 22: Locating Primary Tensioner Bolts
Courtesy of FORD MOTOR CO.
23. As a post-check, verify correct alignment of all timing marks.
Fig 23: Verifying Correct Alignment Of All Timing Marks
Courtesy of FORD MOTOR CO.
24. Install new VCT housing seals.
Fig 24: Locating VCT Housing Seals
Courtesy of FORD MOTOR CO.
CAUTION: Make sure the dowels on the VCT housing are fully engaged in the cylinder head prior to tightening the bolts. Failure to follow this process will result in severe engine damage.
25. Install the LH VCT housing and the 3 bolts.
    • Tighten in the sequence shown to 10 Nm (89 lb-in).
Fig 25: Identifying LH VCT Housing Bolts Tightening Sequence
Courtesy of FORD MOTOR CO.
CAUTION: Make sure the dowels on the VCT housing are fully engaged in the cylinder head prior to tightening the bolts. Failure to follow this process will result in severe engine damage.
26. Install the RH VCT housing and the 3 bolts.
    • Tighten in the sequence shown to 10 Nm (89 lb-in).
Fig 26: Identifying RH VCT Housing Bolts Tightening Sequence
Courtesy of FORD MOTOR CO.
27. Install the engine front cover. For additional information, refer to Engine Front Cover .