COMP Cams 2011+ 5.0L Ford 4v (Coyote) Camshaft User Manual
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COMP Cams®
3406 Democrat Rd.
Memphis, TN 38118
Phone: (901) 795-2400 Fax: (901) 366-1807
www.compcams.com
Part #COMP4-145
Revised 4/11/11
20.
On a table top reinstall the secondary chain to the intake
and exhaust VCTs (Phasers) for the Left bank. On the
secondary chain there are three dark links. Line the single
link up with the timing mark on the back of the Exhaust
phaser. The exhaust
phaser has the large outer gear on it
that connects to the main chain. Next line the timing mark
on the Intake phaser between the two marked links on the
chain that are beside each other. (See Fig. H)
21.
Reinstall the phasers and chain as an assembly; they will
side on both cams at the same time. You will have to
press down the secondary chain tensioner during
installation. This part is much easier with another person helping, because dropping the phasers at this
point is very easy and could cause a lot of damage. Note: Ensure the chain does not jump a tooth. It
is also very critical that both phasers align properly and seat completely into the camshaft. (See
Tip Below)
TIP:
It may be easier to reinstall the phasers, initially, with the secondary tensioner removed.
Remember, the phasers are variable so finding the correct position to line up the pins for proper
engagement may take some trial and error. This will also allow you see and feel for the proper
engagement between the phaser and the camshaft. In the end, this ensures both camshafts and
phasers are in a position where the phaser can be installed. If the phasers and cams will not
engage you can use a 1 ½" open ended wrench to twist the camshafts to help with any alignment
issues. Once you have both phasers, with chain, installed and engaged to the camshaft properly
you can remove them and reinstall the tensioner.
To remove the tensioner, gently remove the black
retaining clip on the bottom of the phaser. This retaining
clip also doubles as the timing chain guide for the
secondary tensioner so extra caution not to damage it
must be taken. Once the clip is removed, gently tap the
tension out from the bottom (Fig. I).
To reinstall the tensioner, push the tensioner down from
the top until it firmly seats and reinstall the retaining
clip. Now that the camshafts and phasers are aligned, go
back to the start of step number 20.
22.
After VCT phasers are installed correctly, reinstall new camshaft bolts, these bolts are torque-to-yield
and must be used only once. The Ford replacement part number is BR3Z-6279-A. You will need 12 new
bolts to complete this process. Install and torque new cam bolts to 11 ft./lb. and then, using a torque
angle gauge, add 90° of additional clockwise rotation. Be sure to hold the camshafts with the 1½ wrench
to keep them from rotating and letting the valves contact the pistons. Repeat steps 20-22 for the Right
Bank.
Fig. H
Fig. I