Nissan Titan. Instruction — part 316
EM-68
< REMOVAL AND INSTALLATION >
CAMSHAFT
• Measure the diameter of the valve lifter.
Valve Lifter Hole Diameter
• Measure the diameter of the valve lifter hole of the cylinder head,
using suitable tool.
Calculation of Valve Lifter Clearance
(Valve lifter clearance) = (valve lifter hole diameter) – (valve lifter
diameter)
• If the measurement is not within specification, referring to each
specification of the valve lifter diameter and hole diameter, replace
either or both the valve lifter and cylinder head.
INSTALLATION
1. Install the valve lifters if removed.
• Install removed parts in their original locations.
2. Install the camshafts. Use the table below for identification of the
(RH) and (LH), and intake and exhaust.
• Install so that the (RH) bank (B) dowel pins (A) and (LH) bank
(C) dowel pins (A) at the front of the camshaft face are in the
direction shown.
Standard
: 33.977 - 33.987 mm (1.3377 - 1.3381 in)
JEM798G
Standard
: 34.000 - 34.016 mm (1.3386 - 1.3392 in)
Standard
: 0.013 - 0.039 mm (0.0005 - 0.0015 in)
PBIC0043E
Bank
INT EXH
Identification
paint (front)
Identification
paint (rear)
Identification
rib
(RH)
INT
Pink
—
Yes
EXH
—
Orange
Yes
(LH)
INT
Pink
—
No
EXH
—
Orange
No
KBIA2523E
WBIA0708E
CAMSHAFT
EM-69
< REMOVAL AND INSTALLATION >
C
D
E
F
G
H
I
J
K
L
M
A
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N
P
O
3. Install the (RH) bank (B) and (LH) bank (D) camshaft brackets
(A).
• Install by referring to the installation location mark (E) on the
upper surface.
• Install so that the installation location mark (E) can be correctly
read when viewed from the intake manifold side (C).
• Install No. 1 camshaft bracket using the following procedure:
- Apply liquid gasket to No. 1 camshaft bracket (A) and (B) as
shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-21, "Recommended Chemical Products and Sealants"
.
CAUTION:
• After installation, be sure to wipe off excess liquid gas-
ket oozing from part (C) and (D) both on (RH) and (LH)
sides.
• Remove completely excess of liquid gasket inside
bracket.
• The components must be installed within 5 minutes of the liquid gasket application.
• Then allow 30 minutes for the liquid gasket to set before filling the engine with oil or coolant.
- Apply liquid gasket (C) to the back side of the (LH) (A) bank
front cover and (RH) (B) bank front cover as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-21, "Recommended Chemical Products and Sealants"
.
CAUTION:
• The components must be installed within 5 minutes of
the liquid gasket application.
• Then allow 30 minutes for the liquid gasket to set before
filling the engine with oil or coolant.
- (C): 2.6 - 3.6 mm (0.102 - 0.142 in) dia.
: Engine front
AWBIA0164ZZ
(C)
: 11 mm (0.43)
(D)
: 2.0 - 3.0 (0.079 - 0.118 in) dia.
WBIA0710E
WBIA0711E
EM-70
< REMOVAL AND INSTALLATION >
CAMSHAFT
- Position No. 1 camshaft bracket close to the mounting posi-
tion, and then install it to prevent from touching liquid gasket
applied to each surface.
- Temporarily tighten the (RH) (A) and (LH) (B) front cover bolts
(4 for each bank) as shown.
4. Tighten the camshaft bracket bolts as follows:
CAUTION:
After tightening the camshaft bracket bolts, be sure to wipe
off excess liquid gasket from the parts listed below.
• Mating surface of rocker cover
• Mating surface of front cover
a. Tighten the (RH) (A) and (LH) (B) front cover bolts (4 for each
bank) as shown to the specified torque.
SBIA0259E
WBIA0706E
Camshaft bracket bolts
Step 1 (bolts 9 - 12)
: 1.96 N·m (0.2 kg-m, 17 in-lb)
Step 2 (bolts 1 - 8)
: 1.96 N·m (0.2 kg-m, 17 in-lb)
Step 3 (all bolts)
: 5.88 N·m (0.6 kg-m, 52 in-lb)
Step 4 (all bolts)
: 10.4 N·m (1.1 kg-m, 92 in-lb)
(A) : (RH) bank
(B) : Exhaust side
(C) : (LH) bank
(D) : Intake side
: Engine front
WBIA0707E
Front cover bolts : 11.0 N·m (1.1 kg-m, 8 ft-lb)
WBIA0706E
CAMSHAFT
EM-71
< REMOVAL AND INSTALLATION >
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
5. Install the camshaft sprockets using the following procedure:
• A: (LH) bank shown
a. Install the camshaft sprockets aligning them with the matching
marks painted on the timing chain (B) and the camshaft sprock-
ets (C) before removal. Align the camshaft sprocket key groove
with the dowel pin on the camshaft front edge at the same time.
Then temporarily tighten camshaft sprocket bolts.
• Install the intake (valve timing control) (A) and exhaust (B) side
camshaft sprockets by selectively using the groove of the
dowel pin according to the bank for the exhaust (B) side cam-
shaft sprockets. (Common part used for both exhaust banks.)
NOTE:
Use the groove marked (R) for (RH) bank and (L) for (LH)
bank.
b. Lock the hexagonal part of the camshaft in the same way as for
removal, and tighten the camshaft sprocket bolts.
c. Check again that the timing alignment mark on the timing chain
and on each sprocket are aligned.
6. Install the chain tensioner using the following procedure:
NOTE:
(LH) is shown.
a. Install the chain tensioner.
• Compress the plunger and hold it using a stopper pin when
installing.
• Loosen the slack guide side timing chain by rotating the cam-
shaft hexagonal part if mounting space is small.
b. Remove the stopper pin and release the plunger, and then apply
tension to the timing chain.
c. Install the chain tensioner cover onto the front cover.
• Apply liquid gasket as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-21, "Recommended Chemical Products and Sealants"
.
7. Check and adjust valve clearances. Refer to
.
8. Installation of the remaining components is in the reverse order
of removal.
Inspection after Installation
INFOID:0000000009886434
INSPECTION OF CAMSHAFT SPROCKET (INT) OIL GROOVE
WARNING:
Check when engine is cold so as to prevent burns from any splashing engine oil.
CAUTION:
AWBIA0152ZZ
AWBIA0151ZZ
Chain tensioner bolts
: 6.9 N·m (0.70 kg-m, 61 in-lb)
Chain tensioner cover
bolts
: 9.0 N·m (0.92 kg-m, 80 in-lb)
KBIA2479E
KBIA2547E
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