2003 FORD MUSTANG engine

3. Using the data recorded earlier and the Bearing Select Fit Chart, Standard Bearings Chart
determine the required bearing grade for each main bearing.
zRead the first letter of the engine block main bearing code and the first letter of the
crankshaft main bearing code.
z Read down the column below the engine block main bearing code letter, and across the
row next to the crankshaft main bearing code letter, until the two intersect. This is the
required bearing grade for the number one crankshaft main bearing.
z As an example, if the engine block code letter is "F" and the crankshaft code letter is "D,"
the correct bearing grade for this main bearing is "2."
z Repeat this process for the remaining four main bearings.
4. If oversize bearings are being used, use the procedure in the previous step and the Bearing Select Fit Chart, Oversize Bearing Chart to determine the required grade for each main bearing. Klj . 3 ba
302003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

NOTE:
Before assembling the cylinder block, all sealing surfaces must be free from chips, dirt, paint
and foreign material. Also, make sure the coolant and oil passages are clear.
5. Install the upper main bearings into the cylinder block and the lower main bearing into the crankshaft main bearing caps. Lubricate the main bearings with clean engine oil.
6. Install the crankshaft into the cylinder block.
7. CAUTION: Make sure the coated side of the thrust washer with the 5- mm wide oil
grooves faces the crankshaft thrust surface.
Push the crankshaft rearward and install the crankshaft thrust washer at the back of the No. 5
main boss. Klj . 4 ba
302003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

13.
CAUTION: Do not scratch the cylinder walls or crankshaft journals with the
connecting rod.
NOTE: Make sure that the piston arrow is facing forward.
NOTE: Lubricate the piston rings, cylinder walls and connecting rod bearings with clean engine
oil.
Using the special tool push the pistons through the top of the cylinder block.
14. CAUTION: Do not scratch the cylinder walls or the crankshaft journals with the
connecting rod.
NOTE: Make sure the crankshaft is at T.D.C.
Using the special tool, install the connecting rod assemblies.
15. NOTE: The rod bearing cap bolts are torque- to-yield. Install new bolts each time they are
serviced.
Install the connecting rod bearing caps and bolts and tighten in three stages.
zStage 1: tighten to 25 Nm (18 lb- ft).
z Stage 2: tighten to 45 Nm (33 lb- ft).
z Stage 3: tighten an additional 90 degrees. Klj . 7 ba
302003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

16. Check the connecting rod bearing clearance. For additional information, refer to
Section 303 -
00 .
17. Install the LH engine mount.
18. Install the RH engine mount.
19. Install the nuts and the windage tray.
20. Install and tighten the oil pump screen spacer. Klj . 8 ba
302003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

procedures.
Make sure the camshaft timing sprockets are positioned correctly.
25. NOTE: The LH is shown; the RH is similar.
NOTE: Lubricate the bolt heads and threads. Use clean engine oil.
Install the LH and RH cylinder heads and 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.
26. CAUTION: Timing chain procedures must be followed exactly or damage to valves
and pistons will result.
Compress the tensioner plunger, using a vise. Klj . 10 ba
302003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

43.
NOTE: If the engine front cover is not secured within four minutes, the sealant must be removed
and the sealing area cleaned with metal surface cleaner. Allow to dry until there is no sign of
wetness, or four minutes, whichever is longer. Failure to follow this procedure can result in
future oil leakage.
Apply silicone gasket and sealant in the locations shown.
44. Install the engine front cover. Item Part
Number Description Klj . 15 ba
302003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

50. Install the belt idler pulleys.
51. Lubricate the front oil seal and the engine front cover with clean engine oil.
52. Using the special tool, install the front oil seal. Klj . 18 ba
302003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...

56.
NOTE: Lubricate the O- ring seal with clean engine oil.
Install the coolant pump.
57. NOTE: The RH is shown; the LH is similar. Use new gaskets when installing the exhaust
manifolds.
Install the exhaust manifold.
58. Install the knock sensors. Klj . 20 ba
302003 Mustang Workshop Manual
17. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_4464/S3B~us~en~ ...