Removal and Installation: Installation

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

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1.	Internal chain guide	2.	Camshaft sprocket (intake)	3.	Mating mark (blue link)
4.	Mating mark (punched)	5.	Secondary timing chain tensioner	6.	Mating mark (copper link)
7.	Secondary timing chain	8.	Camshaft sprocket (exhaust)	9.	Tensioner guide
10.	Water pump	11.	Crankshaft sprocket	12.	Mating mark (notched)
13.	Primary timing chain	14.	Slack guide	15.	Primary timing chain tensioner
16.	Mating mark (back side)	17.	Crankshaft key	18.	Mating mark (copper link)

NOTE: The figure above shows the relationship between the mating mark on each timing chain and that on the corresponding sprocket, with the components installed.

Make sure that dowel pin hole, dowel pin of camshaft and crankshaft key are located as shown. (No. 1 cylinder at compression TDC)

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NOTE: Though camshaft does not stop at the position as shown, for the placement of cam nose, it is generally accepted camshaft is placed in the same direction of the figure.

Camshaft dowel pin hole (intake side)	: At cylinder head upper face side in each bank.
Camshaft dowel pin (exhaust side)	: At cylinder head upper face side in each bank.
Crankshaft key	: At cylinder head side of right bank.

Install timing chains (secondary) and camshaft sprockets as follows:

CAUTION: Mating marks between timing chain and sprockets slip easily. Confirm all mating mark positions repeatedly during the installation process.

Push plunger of timing chain tensioner (secondary) and keep it pressed in with stopper pin.

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NOTE: Use stopper pin included with Tool.

Tool number

: -- (J-50246)

Before installing timing chains (secondary) and camshaft sprockets, confirm mating marks are visible. If necessary, use paint or equivalent to re-mark the camshaft sprockets at each mating mark.

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Install timing chains (secondary) (8) and camshaft sprockets [INT (1) and EXH (9)].

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Left bank mating marks (6)

Align the timing chain mating marks (secondary) (2) (copper color link) with the ones on camshaft sprockets (INT and EXH) (4), (5), (7) and (10) (punched), and install them.

NOTE:

Mating marks for camshaft sprocket (INT) are on the back side of camshaft sprocket (secondary).

There are two types of mating marks, circle (7), (10) and oval (4), (5) types. They should be used for the right and left banks, respectively.

Right bank	: Use circle type (7) and (10).
Left bank	: Use oval type (4) and (5).

Align dowel pin (3) and pin hole on camshafts with the groove (11) and dowel pin on sprockets, and install them.
On the intake side, align pin hole on the small diameter side of the camshaft front end with dowel pin (3) on the back side of camshaft sprocket, and install them.
On the exhaust side, align dowel pin on camshaft front end with pin groove (11) on camshaft sprocket, and install them.
In case that positions of each mating mark and each dowel pin do not fit on mating parts, make fine adjustment to the position by slightly turning camshaft(s).
Bolts for camshaft sprockets must be tightened in the next step. Tightening them by hand is enough to prevent the dislocation of dowel pins.

Confirm the mating marks are aligned, then finger tighten camshaft sprocket bolts. Final tightening will be done with all timing chains installed.

Remove stopper pins from timing chain tensioners (secondary).

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Install timing chain (primary) as follows:

Install crankshaft sprocket.

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NOTE: Make sure the mating marks on crankshaft sprocket face the front of engine.

Install the primary timing chain.

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Water pump (G).
Install primary timing chain so the mating mark punched (B) on camshaft sprocket is aligned with the blue link (A) on the timing chain, while the mating mark notched (E) on the crankshaft sprocket (D) is aligned with the copper link (F) on the timing chain, as shown.
When it is difficult to align mating marks (A) with (B) and (E) with (F) of the primary timing chain with each sprocket, gradually turn the camshaft to align it with the mating marks.
During alignment, be careful to prevent dislocation of mating mark alignments of the secondary timing chains.

Install internal chain guide (1), slack guide (3) and tension guide (4).

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If removed, reinstall slack guide.

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CAUTION: Do not overtighten slack guide bolts. It is normal for a gap to exist under the bolt seats when bolts are tightened to specification.

Remove stopper pin from primary timing chain tensioner.
Make sure again that the mating marks on camshaft sprockets and timing chain have not slipped out of alignment.
Tighten camshaft sprocket bolts to specification with all timing chains installed and Ring Gear Stopper Tool holding the crankshaft.

Tool number

:--(J-48761)
Install front timing chain case. Refer to Removal and Installation .