timing FORD MUSTANG 2003 Owner's Guide

IN-
VEHICLE REPAIR
Camshaft
Removal and Installation 1. Remove the timing chains. For additional information, refer to Timing Drive Components in this
section.
2. Remove the roller followers. For additional information, refer to Camshaft Roller Follower in this
section.
3. Remove the bolts and camshaft bearing caps.
4. Remove the camshaft.
5. NOTE: Tighten the camshaft bearing cap bolts in the sequence shown.
To install, reverse the removal procedure.
SECTION 303-
01B: Engine — 4.6L (2V) 2003 Mustang Workshop Manual Klj . 1 ba
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50. Position the crankshaft with the keyway at the 12 o'clock position.
51. Remove the RH and LH timing chain tensioning system from both timing chains.
1. Remove the bolts.
2. Remove the timing chain tensioners.
3. Remove the timing chain tensioner arms.
52. Remove the LH and RH timing chains and the crankshaft sprocket. zRemove 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 . 16 ba
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53.
NOTE: LH shown; RH similar.
Remove the bolts and the timing chain guides.
54. NOTE: LH shown; RH similar.
Install the lifting handles to the RH and LH cylinder heads. Klj . 17 ba
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53. Remove the RH and LH timing chain tensioner (RH shown, LH similar).
1. Remove the bolts.
2. Remove the timing chain tensioners.
3. Remove the timing chain tensioner arms.
54. 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 can occur.
CAUTION: Do not remove the special tool from the camshafts.
Remove the LH and RH timing chains and the crankshaft sprocket. zRemove the RH timing chain from the 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 from the crankshaft sprocket. Klj . 18 ba
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55.
NOTE: The LH is shown and the RH is similar.
Remove the bolts and the timing chain guides.
56. NOTE: One side shown, other side similar.
Install the lifting handles to the RH and LH cylinder heads. Klj . 19 ba
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33.
CAUTION: Timing chain procedures must be followed exactly or damage to valves
and pistons will result.
Using a vise, compress the tensioner plunger.
34. Install a retaining clip on the tensioner to hold the plunger in during installation.
35. Remove the tensioner from the vise. Klj . 15 ba
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36.
NOTE: There are 58 links in each timing chain.
If the copper links are not visible, mark one link on one end and one link on the other end to use
as timing marks.
37. Install the timing chain guides. 1. Position the LH timing chain guide.
2. Install and tighten the LH bolts.
3. Position the RH timing chain guide.
4. Install and tighten the RH bolts.
38. Install the crankshaft sprocket, making sure the flange faces forward. Klj . 16 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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41. Remove the special tool.
42. Position the LH (inner) timing chain on the crankshaft sprocket, aligning the copper (marked)
link with the timing mark on the sprocket.
43. Install the LH timing chain on the camshaft sprocket, aligning the copper (marked) link with the timing marks on the sprocket.
44. NOTE: The LH timing chain tensioner arm has a bump near the dowel hole for identification.
Position the LH timing chain tensioner arm on the dowel pin and install the LH timing chain
tensioner.
45. Remove the retaining clip from the LH timing chain tensioner. Klj . 18 ba
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46. Position the RH (outer) timing chain on the crankshaft sprocket, aligning the copper (marked)
link with the timing mark on the sprocket.
47. Install the RH timing chain on the camshaft sprocket, aligning the copper (marked) link with the timing marks on the sprocket.
48. Position the RH timing chain tensioner arm on the dowel pin and install the RH timing chain tensioner.
49. Remove the retaining clip from the RH timing chain tensioner. Klj . 19 ba
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