Timing Drive Components: Installation
WARNING: This page is about a different car, the 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Timing chain procedures must be followed exactly or damage to valves and pistons will result.
- Compress the tensioner plunger, using a vise.
- Install a retaining clip on the tensioner to hold the plunger in during installation.
- If copper links are not visible, mark 2 links on one end and 1 link on the other end, and use as timing marks.
- Install the RH camshaft spacer ring, both camshaft sprockets, flat washers and tighten the bolts in 2 stages.
- Stage 1: Tighten to 40 Nm (30 lb-ft).
- Stage 2: Tighten an additional 90 degrees.
- Install the timing chain guides and the 4 bolts.
- Tighten to 10 Nm (89 lb-in).
- Preposition the camshafts.
- Rotate the LH camshaft with the Camshaft Positioning Tool until the timing mark is approximately at 12 o'clock.
- Rotate the RH camshaft with the Camshaft Positioning Tool until the timing mark is approximately at 11 o'clock.
- Tighten the Camshaft Holding Tool to maintain camshaft pre-positioning.
- Position the crankshaft with the special tool, then remove the tool.
- Install the crankshaft sprocket, making sure the flange faces forward.
- Install the lower end of the LH timing chain, aligning the timing marks.
- Install the LH timing chain on the camshaft sprocket with the 2 chain (marked) links and the timing marks aligned.
- Install the RH (outer) timing chain on the crankshaft sprocket.
- Position the timing chain on the camshaft sprocket. Make sure the 2 copper-colored (marked) links align with the camshaft sprocket timing mark.
- Position the LH and RH timing chain tensioner arms on the dowel pins and install the timing chain tensioners and the 4 bolts.
- Tighten to 25 Nm (18 lb-ft).
- Remove the retaining clips from the RH and LH timing chain tensioners.
- Check for correct alignment of all timing marks.
- Remove the special tools from the camshafts.
- Install the crankshaft sensor ring on the crankshaft.
- Lubricate the balance shaft journals with clean engine oil.
- Using the index mark on the balance shaft, mark the corresponding gear tooth with chalk.
- Position the balance shaft on the journals.
- Align the chalk mark on the balance shaft with the camshaft timing mark as shown.
- Install the bearing caps in their original locations and tighten the 6 bolts in the sequence shown.
- Tighten to 10 Nm (89 lb-in).
- Install engine front cover. For additional information, refer to Engine Front Cover .
CAUTION:
Prior to installation, inspect the tensioner-sealing bead for seal integrity. If cracks, tears, separation from the tensioner body or permanent compression of the seal bead is observed, install a new tensioner. Failure to follow these instructions may result in engine damage.
NOTE:
There are 61 links in each timing chain.
NOTE:
Slightly loosen the Camshaft Holding Tool to allow slight camshaft movement.
CAUTION:
Rotate the crankshaft counterclockwise only. Do not rotate past the position shown or severe piston and/or valve damage may occur.
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.
CAUTION:
The camshaft sprocket can jump time causing engine damage 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.
NOTE:
The LH timing chain tensioner arm has a bump near the dowel hole, for identification.
NOTE:
It may be necessary to use an inspection mirror to see the marks.