clock FORD MUSTANG 2003 Owner's Manual

CAUTION: Camshaft keyways must maintain a 90 degree clocked position relative
to the valve cover rail.
CAUTION: To prevent piston crown and valve damage the crankshaft keyway must
be clocked at 270° (45° BTDC) before the installation of the cylinder head assembly.
NOTE: Crankshaft must be rotated clockwise only.
Align the keyways as shown.
32. NOTE: Position the RH and the LH cylinder heads over the dowels on the cylinder head
gaskets.
NOTE: The LH is shown the RH is similar.
Tighten the bolts in six stages in the sequence shown. zStage 1: Tighten to 40 Nm (30 lb- ft).
z Stage 2: Tighten an additional 90 degrees.
z Stage 3: Loosen the bolts a minimum of one full turn.
z Stage 4: Tighten to 40 Nm (30 lb- ft).
z Stage 5: Tighten an additional 90 degrees.
z Stage 6: Tighten an additional 90 degrees. Klj . 14 ba
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39. Rotate the RH camshaft sprocket until the timing mark is approximately at the 11 o'clock
position. Rotate the LH camshaft sprocket until the timing mark is approximately at the 12
o'clock position.
40. CAUTION: Unless otherwise instructed, do not rotate either the crankshaft or the
camshafts, when the timing chains are removed and the cylinder heads are installed.
Severe piston and valve damage will occur.
CAUTION: When instructed to do so, rotate the crankshaft counterclockwise only.
Do not rotate past the position shown or severe piston and valve damage can occur.
NOTE: The number one cylinder is at top dead center (TDC) when the stud on the engine block
fits into the slot in the handle of the special tool.
Using the special tool, position the crankshaft so the number one cylinder is at TDC. Klj . 17 ba
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11. Rotate the RH camshaft sprocket until the timing mark is approximately at the 11 o'clock
position. Rotate the LH camshaft sprocket until the timing mark is approximately at the 12
o'clock position.
12. CAUTION: When instructed to do so, rotate the crankshaft counterclockwise only.
Do not rotate past the position shown or severe piston and valve damage can occur.
NOTE: The number one cylinder is at top dead center (TDC) when the stud on the engine block
fits into the slot in the handle of the special tool.
Using the special tool, position the crankshaft so the number one cylinder is at TDC. Klj . 6 ba
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IN-
VEHICLE REPAIR
Crankshaft Pulley — Auxiliary
Removal and Installation 1. Remove the cooling fan. For additional information, refer to Section 303 - 03A .
2. Remove the supercharger drive belt cover.
3. Rotate the supercharger belt tensioner clockwise and remove the supercharger belt. 4. Remove the coolant hose assembly bolt. SECTION 303-
01C: Engine — Cobra 4.6L (4V) 2003 Mustang Workshop Manual Special Tool(s)
Locking Tool, Flywheel
303-
673 Klj . 1 ba
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4.
CAUTION: The camshaft timing marks must be correctly lined up or damage to the
valves and pistons can occur.
NOTE: The copper links on the timing chain may not line up with the timing marks on the
sprockets.
Make sure the timing marks on the camshaft sprockets are correctly positioned. If necessary,
turn the crankshaft one full turn clockwise to correctly position the sprockets.
5. NOTE: LH shown; RH similar.
Remove the two bolts, the timing chain tensioner (6L266) and tensioner arm (6L253).
6. CAUTION: Unless otherwise instructed, at no time when the timing chains are
removed and the cylinder heads are installed is the crankshaft or the camshaft to be
rotated. Severe piston and valve damage will occur.
Remove the LH and RH timing chains and the crankshaft sprocket (6306).
zRemove the special tool from the crankshaft.
z Remove the RH timing chain from camshaft sprocket.
z Remove the RH timing chain from the crankshaft sprocket.
z Remove the LH timing chain from the camshaft sprocket.
z Remove the LH timing chain and crankshaft sprocket. Klj . 2 ba
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3. If the copper links are not visible, mark one link on one end and one link on the other end, and
use as timing marks.
4. Install the timing chain guides.
5. Rotate the LH camshaft sprocket until the timing mark is approximately at the 12 o' clock position. Rotate the RH camshaft timing sprocket until the timing mark is approximately in the
11 o' clock position.
6. CAUTION: Unless otherwise instructed, at no time when the timing chains are Klj . 4 ba
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removed and the cylinder heads are installed is the crankshaft or the camshaft to be
rotated. Severe piston and valve damage will occur.
CAUTION: Rotate the crankshaft counterclockwise only. Do not rotate past position
shown or severe piston or valve damage will occur.
Using the special tool, position the crankshaft.
7. Remove the special tool.
8. Install the crankshaft sprocket with the flange facing forward.
9. NOTE: LH timing chain shown; RH similar.
Install the LH timing chain onto the crankshaft sprocket, aligning the one copper link on the
timing chain (6268) with the slot on the crankshaft sprocket.
10. Verify the camshaft sprocket to copper link alignment. Klj . 5 ba
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3. Install the bolts.
4.
CAUTION: Timing marks must be at 12 o'clock and indexed at 6 o'clock.
Install the camshaft sprockets and the chain as an assembly.
5. Remove the lockpin from the chain tensioner. Klj . 5 ba
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Install the tensioner.
11. CAUTION: Timing marks must be at 12 o'clock and indexed at 6 o'clock.
Install the camshaft sprockets and the chain as an assembly.
12. Install the special tool.
13. Install the camshaft spacer, washer and bolt, and hand- tighten the bolt. Klj . 9 ba
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28. Pre-position the camshafts.
1. Rotate the LH camshaft until the timing mark is approximately at 12 o'clock.
2. Rotate the RH camshaft until the timing mark is approximately at 11 o'clock.
29. Install the special tool. Klj . 12 ba
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