COMP Cams 2011+ 5.0L Ford 4v (Coyote) Camshaft - Manual (Page 5)

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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
Left Bank Main Timing Chain and Tensioner Re-installation
23. Now that your camshafts and VCT phasers are installed you
will need to compress and lock the main chain tensioner to
allow it to be re-installed. Compress the tensioner piston
only. Place it in an aluminum jawed vice and compress until
the first recess is flush with the tensioner body, as pictured
in Fig. J.
24. Use a small Allen or pick and put it in the hole labeled “1”
in Fig. K. This hole contains a toothed gear, use the Allen to
depress the spring loaded gear; this will allow the locking
mechanism to be retracted. Compress the assembly, with
your finger, until the plate on the end of the rod is able to be
seated against the face of the tensioner.
25. Now insert a 5/64" or 1/16" Allen in the hole labeled “2” in
Fig. K. Slowly release the jaws and the tensioner should
stay compressed.
26. You will need to install the left side bank timing chain first,
as it uses the rear position of the crankshaft gear. Rotate the
crankshaft until the crankshaft keyway (not timing mark) is
at the nine o’clock position. Now align one of the colored
chain links with the timing mark on the crankshaft gear and
the other colored chain link with “L” timing mark on the
phaser gear. You may have to rotate the crankshaft slightly
to get everything to align properly. (See Tip Below)
TIP: Whenever you need to rotate the crankshaft, grab
the timing chain near the crankshaft gear to remove any
slack around the crank gear as you turn it (Fig. L).
Without removing this slack it is very common for the
chain to jump a tooth, or two, when you start rotating
the crank. Not allowing slack on the chain will help
ensure the timing chain stays in the proper position.
27. Once the chain is installed, install the timing chain guides.
Again you may have to move the crankshaft to allow
enough slack to allow you to slide them on.
28. With both left bank guides in place install the tensioner, that is still compressed and locked. Again you
may have to move the crankshaft slightly to allow enough slack in the correct side of the chain so the
tensioner can be installed. Torque the tensioner bolts and main chain guide bolt to 7 ft./lb. or 84 in./lb.
29. Re-verify that the timing marks on the timing chain align properly with the timing marks on the phaser
and crankshaft gear.
30. Release the main timing chain tensioner by pulling out the Allen used in step 23-25. This completes the
left side timing chain installation.
Fig. J
Fig. K
Fig. L