Timing Drive Components: Installation

Engines With Non-Ratcheting Timing Chain Tensioners

CAUTION: Timing chain procedures must be followed exactly or damage to the pistons or valves will result.

Fig 1: Compressing The Tensioner Plunger

Courtesy of FORD MOTOR CO.

Compress the tensioner plunger, using a soft-jawed vise.
Install a retaining clip on the tensioner to hold the plunger in during installation.
- Remove the tensioner from the vise.
Fig 2: Removing Tensioner From The Vise
Courtesy of FORD MOTOR CO.

Engines With Ratcheting Timing Chain Tensioners

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.

NOTE: LH shown, RH similar.

Fig 3: Compressing Each Tensioner Plunger

Courtesy of FORD MOTOR CO.

Compress each tensioner plunger, using an edge of a vise.
Using a small screwdriver or pick, push back and hold the ratchet mechanism.

Fig 4: Holding Ratchet Mechanism With Screwdriver or Pick
Courtesy of FORD MOTOR CO.
While holding the ratchet mechanism, push the ratchet arm back into the tensioner housing.

Fig 5: Pushing Ratchet Arm Into Tensioner Housing
Courtesy of FORD MOTOR CO.
Install a paper clip into the hole of each tensioner housing to hold the ratchet assembly and plunger in during installation.
- Remove the tensioner from the vise.
Fig 6: Removing Tensioner From Vise
Courtesy of FORD MOTOR CO.
Install the exhaust camshaft sprocket. Tighten the bolts in two stages:
- Stage 1: Tighten to 40 Nm (30 lb-ft).
- Stage 2: Tighten an additional 90 degrees.
Fig 7: Installing Exhaust Camshaft Sprocket
Courtesy of FORD MOTOR CO.

All Vehicles

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.

Fig 8: Identifying Copper Links Mark
Courtesy of FORD MOTOR CO.
Install the timing chain guides.

Fig 9: Installing Timing Chain Guides
Courtesy of FORD MOTOR CO.
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.

Fig 10: Identifying Timing Mark
Courtesy of FORD MOTOR CO.

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.

CAUTION: Rotate the crankshaft counterclockwise only. Do not rotate past position shown or severe piston or valve damage will 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.

Fig 11: Positioning Crankshaft Number One Cylinder At TDC Using Special Tool

Courtesy of FORD MOTOR CO.

Using the special tool, position the crankshaft so the number one cylinder is at TDC.
Install the crankshaft sprocket, making sure the flange faces forward.

Fig 12: Installing Crankshaft Sprocket
Courtesy of FORD MOTOR CO.
Position the LH (inner) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the timing mark on the sprocket.

Fig 13: Positioning LH (Inner) Timing Chain On Crankshaft Sprocket
Courtesy of FORD MOTOR CO.
Install the LH timing chain onto the camshaft sprocket, aligning the copper (marked) link with the timing marks on the sprocket.

Fig 14: Installing LH Timing Chain Onto Camshaft Sprocket
Courtesy of FORD MOTOR CO.

NOTE: The LH timing chain tensioner arm has a bump near the dowel hole for identification.

Fig 15: Positioning LH Timing Chain Tensioner Arm On Dowel Pin

Courtesy of FORD MOTOR CO.

Position the LH timing chain tensioner arm on the dowel pin and install the LH timing chain tensioner.

Engines With Non-Ratcheting Timing Chain Tensioners

Remove the retaining clips from the LH timing chain tensioner.

Fig 16: Removing Retaining Clips From LH Timing Chain Tensioner
Courtesy of FORD MOTOR CO.

Engines With Ratcheting Timing Chain Tensioners

Remove the retaining clip from the LH timing chain tensioner.

Fig 17: Removing Retaining Clip From LH Timing Chain Tensioner
Courtesy of FORD MOTOR CO.

All Engines

Position the RH (outer) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the timing mark on the sprocket.

Fig 18: Positioning RH (Outer) Timing Chain On Crankshaft Sprocket
Courtesy of FORD MOTOR CO.
Install the RH timing chain onto the camshaft sprocket, aligning the copper (marked) link with the timing marks on the sprocket.

Fig 19: Installing RH Timing Chain Onto Camshaft Sprocket
Courtesy of FORD MOTOR CO.
Position the RH timing chain tensioner arms on the dowel pin and install the RH timing chain tensioner.

Fig 20: Positioning RH Timing Chain Tensioner Arms Onto Dowel Pin
Courtesy of FORD MOTOR CO.

Engines With Non-Ratcheting Timing Chain Tensioners

Remove the retaining clips from the RH timing chain tensioner.

Fig 21: Removing Retaining Clips From RH Timing Chain Tensioner
Courtesy of FORD MOTOR CO.

Engines With Ratcheting Timing Chain Tensioners

Remove the retaining clip from the RH timing chain tensioner.

Fig 22: Removing Retaining Clip From RH Timing Chain Tensioner
Courtesy of FORD MOTOR CO.

All Engines

Make sure that the copper (marked) chain links are lined up with the dots on the crankshaft sprockets and the camshaft sprocket.

Fig 23: Identifying Copper (Marked) Chain
Courtesy of FORD MOTOR CO.
Position the piston of the cylinder being repaired at the bottom of the stroke and the camshaft lobe at the base circle.
Using the special tool, compress the intake valve spring and install the roller followers in their original locations.

Fig 24: Compressing Intake Valve Spring
Courtesy of FORD MOTOR CO.
Using the special tool, compress the exhaust valve spring and install the roller followers in their original locations.

Fig 25: Compressing Exhaust Valve Spring
Courtesy of FORD MOTOR CO.
Repeat the above three steps to install all the roller followers.

NOTE: LH shown, RH similar.

Fig 26: Installing Spark Plugs

Courtesy of FORD MOTOR CO.

Install the eight spark plugs.
Position the crankshaft sensor ring on the crankshaft.

Fig 27: Positioning Crankshaft Sensor Ring Onto Crankshaft
Courtesy of FORD MOTOR CO.
Install the engine front cover. For additional information, REFER to ENGINE FRONT COVER .