Pathfinder 4WD V6-4.0L (VQ40DE) (2006)
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a. Push plunger of timing chain tensioner (secondary) and keep it pressed in with stopper pin.
b. Install timing chains (secondary) and camshaft sprockets (INT and EXH).
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Align the mating marks on timing chain (secondary) (copper color link) with the ones on camshaft sprockets (INT and EXH) (punched),
and install them.
NOTE:
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Mating marks for camshaft sprocket (INT) are on the back side of camshaft sprocket (secondary).
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There are two types of mating marks, circle and oval types. They should be used for the right and left banks, respectively.
Right bank: Use circle type.
Left bank: Use oval type.
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Align dowel pin and pin hole on camshafts with the groove and dowel pin on sprockets, and install them.
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On the intake side, align pin hole on the small diameter side of the camshaft front end with dowel pin on the back side of camshaft
sprocket, and install them.
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On the exhaust side, align dowel pin on camshaft front end with pin groove on camshaft sprocket, and install them.
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In case that positions of each mating mark and each dowel pin are not fit on mating parts, make fine adjustment to the position holding the
hexagonal portion on camshaft with wrench or equivalent.
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Bolts for camshaft sprockets must be tightened in the next step. Tightening them by hand is enough to prevent the dislocation of dowel
pins.
