Timing Components: Service and Repair
Timing Drive Components
Special Tool(s):
Removal
1. Remove the engine front cover (6019).
2. Remove the crankshaft sensor ring from the crankshaft (6303).
3. Rotate the crankshaft until the timing mark on the RH camshaft sprocket is approximately at the 11 o'clock position and the timing mark on the LH camshaft sprocket is approximately at the 12 o'clock position.
4. Remove the six bolts and remove the balance shaft bearing caps.
5. Remove the balance shaft.
Caution: Unless otherwise instructed, at no time when the timing chains (6268) are removed and the cylinder heads (6049) are installed may the crankshaft or camshaft (6250) be rotated. Severe piston (6108) and valve damage will occur.
6. Use the Crankshaft Holding Tool to position the camshaft as shown.
7. Install the Camshaft Holding Tool on the camshafts.
8. Remove the bolts and the timing chain tensioners (6L266). Remove the timing chain tensioner arms (6L253) from the dowel pins.
9. Remove the LH and RH timing chain and the crankshaft sprockets (6306).
- Remove the RH timing chain from the camshaft sprockets (6256).
- Remove the RH timing chain and outer crankshaft sprocket from the crankshaft.
- Repeat for the LH timing chain and crankshaft sprocket.
10. Remove the timing chain guides (6K297).
- Remove the bolts.
- Remove the timing chain guides.
Note: Romeo engine shown, Windsor engine similar.
11. On engines with bolt-on sprockets, remove the camshaft sprocket.
1. Remove the bolt.
2. Remove the camshaft sprocket.
Installation
Caution: Timing chain procedure must be followed exactly or damage to valves and pistons will result.
Caution: Do not compress the ratchet assembly. This will damage the ratchet assembly.
1. Compress the tensioner using a soft-jawed vice.
2. While holding the ratchet mechanism, push the ratchet arm back into tensioner housing.
3. Install a paper clip into the hole in the tensioner housing to hold the ratchet assembly and plunger in during installation.
4. If copper links are not visible, mark two links on one end and one link one link on the other end, and use as timing marks.
5. On engine equipped with bolt-on sprockets, install the camshaft sprockets (2).
1. Install the bolt (1).
2. Tighten the bolt.
- M10 bolt: Tighten in two stages.
- Stage 1: Tighten to 40 Nm (30 lb-ft).
- Stage 2: Tighten an additional 90 degrees.
- M12 bolt" Tighten to 120 Nm (90 lb-ft).
6. Install the timing chain guides.
7. Position the crankshaft with the Crankshaft Holding Tool, and remove the tool.
Note: Crankshaft sprockets are identical. They may only be installed one way.
8. If removed, install the LH and RH crankshaft sprockets.
9. Install the LH (inner) timing chain on the crankshaft sprocket with the timing marks aligned.
Note: Be sure the upper half of the timing chain is below the tensioner guide dowel. If necessary, use the Camshaft Positioning Tool, to adjust.
10. Install the LH timing chain on the camshaft sprocket with the two copper (marks) chain links and timing marks aligned.
Caution: The camshaft sprocket can jump time if the Camshaft Holding Tool is not secured.
Note: Be sure the chain link and crankshaft sprocket timing marks are aligned.
Note: The lower half of the timing chain must be positioned above the dowel.
11. Install the RH (outer) timing chain on the crankshaft sprocket.
12. Position the timing chain on the camshaft sprocket. Make sure the two copper (marked) links align with the camshaft sprocket timing mark.
13. Position the LH and RH timing chain tensioner arms on the dowel pins. Position the timing chain tensioners and install the bolts.
14. Remove the retaining pins from the RH and LH timing chain tensioners.
15. Remove the Camshaft Holding Tools from the camshafts.
16. Check for proper alignment of all timing marks.
17. Install the crankshaft sensor ring on the crankshaft.
18. Lubricate the balance shaft journals with engine oil.
- Use Super Premium SAE 5W30 Motor Oil XO-5W30-QSP or equivalent meeting Ford specification WSS-M2C153-G.
19. Position the balance shaft on the journals.
20. Align the balance shaft timing marks as shown.
21. Install the bearing caps, the bolts and tighten the bolts in the sequence shown.
Note: If not secured within 4 minutes, sealant must be removed and the sealing area cleaned with solvent. Allow to dry until there is no sign of wetness, or 4 minutes, whichever is longer, Failure to follow this procedure can cause future oil leakage.
22. Apply a bead of silicone along the cylinder head-to-block surface and the oil pan-to-block surface.
- Use Silicone Gasket and Sealant F6AZ-19562A or equivalent meeting Ford specification WSE-M4G323-A6.
23. Install engine front cover.