Remove the cylinder head cover.

(Refer to Cylinder Head Assembly - "Cylinder Head Cover")

Set the piston of No.1 cylinder to the TDC (top dead center) on compression stroke.

(1)

Turn the crankshaft pulley clockwise and align its groove with the timing mark of the timing chain cover.

note

Do not rotate engine counterclockwise.

(2)

Check that the TDC marks of the intake CVVT sprocket and exhaust camshaft sprocket are in straight line on the cylinder head surface as shown in the illustration.

caution

If not, turn the crankshaft one revolution (360°). (Do not rotate engine counterclockwise.)

(3)

Make a mark on the timing chain links corresponding to the timing marks of the intake CVVT sprocket and exhaust camshaft sprocket.

Remove the front camshaft bearing cap (A) and the exhaust camshaft bearing caps (B).

Remove the service hole bolt (A) on the timing chain cover.

Release the ratchet (A) of the timing chain tensioner by pushing and holding the ratchet upward using a thin rod (B).

Loosen the timing chain by pushing the tensioner arm using a handy bar (A).

Remove the exhaust camshaft (A).

Remove the intake camshaft bearings (A) then remove the intake camshaft (B).

Disassemble the sprocket (A) from the exhaust camshaft (B) and the CVVT assembly (C) from the intake camshaft (D).