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Ford 5.4L Timing chain replacement (Cloyes 9-0391SB)

Ford 5.4L Timing chain replacement (Cloyes 9-0391SB)

Hi I'm Cody Smith Technical Support
Manager for Cloyes Gear and Products. In this video we will show you how to
service the timing chain system in 2004 to 2010 Ford 5.4L 3 valve V8 engines using
Cloyes aftermarket replacement components. This procedure will closely
resemble the installation for all Ford modular Triton series engines including
the 4.6L, 5.4L, and 6.8L. 2 Valve, 3 valve,
and 4 valve per cylinder V8 and V10 engines.

Cloyes has exclusively developed and designed critical components for our kit
coverage. We have 23 total kits that cover stock replacement modular
applications from 1994 through 2011. We also have a full line of billet high
performance adjustable premium product for a limited time. Call me for
availability.

The focus today is the installation of the 9-0391SB timing kit for all 5.4 Liter 3-valve engines from 2004 to 2010. The
kit will contain tensioners, guides chains, and the crank sprocket. Note that
the cam sprockets used in the 3 valve engines are variable cam timing
phaser units. They will not be included in this kit.

Please check the Cloye's
buyer's guide on our website for correct kit applications. A few quick notes
before we get started. Timing service can be done with the engine in the vehicle.
Access to the timing components requires removal of the valve covers, and the
front engine cover. Make note that the front engine cover is indexed to the
engine block with dowels, and mates to the oil pan at the bottom.

One more thing, this is an interference engine. First you will need to rotate the engine so the crankshaft key is approximately at 12 o'clock, and the "R" mark on your right
bank passenger side cam and the "L" mark on your left bank driver's side cam are
both up. If the marks on your cam phasers are opposite from what I just described,
then rotate the crankshaft one full revolution and check again. You are now
ready for timing system disassembly.

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Start by removing the crankshaft sensor
ring. Note the direction that the sensor ring will need to be reinstalled. Next remove the timing chain tensioners from both banks. Now remove the pivoting tensioner guides.

You can then remove the timing chains
followed by the crankshaft sprocket. Next remove chain guides. Now install the camshaft sprocket
holding tool on the cylinder head engaging it with the cam phaser. We are
using the holding tool out of the OTC 6681 kit.

Once the tool is installed, you
can remove the cam phaser bolt and the cam phaser. Discard the phaser bolt. These are torque to yield bolts and are not meant to be reused. Repeat the process on
the other cylinder head.

In this application the right bank and
left bank chains are the same. Both are symmetrical with sequential marked outer links on one end, and one single marked link on the other. The two sequential
marked links will straddle the appropriate mark on the cam phasers, and
the single marked link will align to the crankshaft sprockets timing mark. The 4.6
Liter chains are similar; however, they will only have one marked link on each
end of the chain.

The marked links will align directly with the camshaft and
crankshaft sprocket timing marks on the 4.6 Liter applications. The timing chain tensioners have a crucial mating surface with seal. For example the used OE
tensioner shown here has a ripped seal. Take note the Cloyes exclusive
tensioner is improved with a fully supported O-ring seal design.

With the
engine opened up it is an opportune time to change the VCT solenoid control
valves if necessary. If you are making this repair do a rattle idle, or you are
attempting to remedy unstable chain operation, you may have an issue with the
variable cam timing system including possible issues with the cam phasers
control solenoids or oil pressure feed to the VCT components. If you are suspect
that you have an engine that is severely worn, or has suffered lack of maintenance,
it is recommended to inspect the camshafts and camshaft journals. Test and
confirm a minimum hot idle oil pressure of 25 psi.

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This is an excellent overall
test to determine engine health, but remember that overall healthy oil
pressure does not indicate the cam journal clearance is within
specification. This test should be conducted using the manufacturer
specified engine oil. This is an example of a severely worn engine where you can see heavy scoring on the outside diameter of the camshaft journals, scoring on the camshaft journal bores in the head, and camshaft journal main
caps. The camshaft journal OD specification is 1.126 To 1.127 Inches.

A properly torqued camshaft journal bore should be within 1.128 To 1.129 Inches. Resulting in a journal
OD to camshaft journal bore clearance of 1 to 3 thousandths. These specifications are
critical to VCT function because the front cam journal feeds the VCT through
the camshaft for retarded and advanced rotation. Camshaft and camshaft journal
bores outside of the given specifications can allow for VCT oil
supply cross flow resulting in unstable VCT function.

The front cam journal also
sets the camshaft end play. End play specification is 1 to 7 thousandths. Also note this feature is the oil feed and oil port for thrust bearing lubrication. We
are now ready to start the assembly.

Start by engaging the right bank cam
phaser onto the right bank camshaft. Then loosely install the new phaser bolt.
Install the cam holding tool then torque the phaser bolt to 30 foot pounds plus
an additional 90 degrees. Repeat this process for the left bank head and
remove the cam holding tool. Install the crankshaft sprocket.

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Make sure the hub faces forward. Install timing chain guides on both banks. Torque all four
bolts to 89 inch pounds. We are now ready to install the timing chains.

Install the
left bank chain first on the inner row of the crankshaft sprocket. Straddle the
appropriate mark on the cam phaser with the sequentially marked outer links of
the chain and align the single marked link with the timing mark on the
crankshaft sprocket. If the marks do not perfectly align,
you can rotate the crankshaft slightly by hand using the harmonic balancer.
Repeat this process on the right bank using the outer row of teeth on the
crankshaft sprocket. Install the timing chain tensioner
guides.

Before installation of the timing chain tensioners, make sure the mating
surface of the cylinder heads are clean and inspect the oil feed port for debris
or oil sludge buildup. Clean as necessary. Ensure to install the correct tensioner
on each bank. The tensioners will be marked on the housings with an "L" for the
left bank or driver's side and an "R" for the right bank or passenger side.

As we
stated earlier, inspect the mating seals before installation. Torque the tensioner
bolts to 18 foot pounds. Go ahead and check the timing marks one more time. Once confirmed pulled the activation clip on both tensioners.

This concludes the timing system
installation. You can now reinstall your reluctor wheel, your front engine cover,
and your valve covers. Hey Cody how's it going?
Good man how are you? If you got any questions please call our
tech line. Please subscribe to our channel.

Good job. Thanks you too!.

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