Nissan Frontier D40. Instruction — part 615
EM-192
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[VQ40DE]
CAMSHAFT
• Install camshaft with dowel pin attached to its front end face on
the exhaust side.
• Follow your identification marks made during removal, or fol-
low the identification marks that are present on new camshafts
for proper placement and direction.
• Install camshaft so that dowel pin hole and dowel pin on front
end face are positioned as shown. (No. 1 cylinder TDC on its
compression stroke)
NOTE:
• Large and small pin holes are located on front end face of
camshaft (INT), at intervals of 180
°
. Face small dia. side pin
hole upward (in cylinder head upper face direction).
• Though camshaft does not stop at the portion as shown, for
the placement of cam nose, it is generally accepted cam-
shaft is placed for the same direction as shown.
KBIA1071E
Bank
INT/EXH
Dowel pin
Paint marks
Identification
mark
M1
M2
RH
INT
No
Green
No
RE
EXH
Yes
No
White
RE
LH
INT
No
Green
No
LH
EXH
Yes
No
White
LH
KBIA1009E
PBIC2478E
CAMSHAFT
EM-193
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[VQ40DE]
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4.
Install camshaft brackets.
• Remove foreign material completely from camshaft bracket
backside and from cylinder head installation face.
• Install camshaft bracket in original position and direction as
shown.
• Install camshaft brackets (No. 2 to 4) aligning the stamp marks
as shown.
NOTE:
There are no identification marks indicating left and right for
camshaft bracket (No. 1).
• Apply liquid gasket to mating surface of camshaft bracket (No.
1) as shown on right and left banks.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-22, "Recommended Chemical Products and Sealants"
.
PBIC2051E
PBIC2052E
PBIC2660E
EM-194
< ON-VEHICLE REPAIR >
[VQ40DE]
CAMSHAFT
5.
Tighten camshaft bracket bolts in the following steps, in numeri-
cal order as shown.
6.
Measure the difference in levels between front end faces of
camshaft bracket (No. 1) and cylinder head.
• Measure two positions (both intake and exhaust side) for a
single bank.
• If the measured value is out of the standard, re-install cam-
shaft bracket (No. 1).
7.
Check and adjust the valve clearance. Refer to
8.
Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Inspection of Camshaft Sprocket (INT) Oil Groove
WARNING:
• Check when engine is cold so as to prevent burns from any splashing engine oil.
CAUTION:
• Perform this inspection only when DTC P0011 or P0021 are detected in self-diagnostic results of
CONSULT-III and it is directed according to inspection procedure of EC section. Refer to
.
1.
Check the engine oil level. Refer to
.
2.
Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.
a.
Release fuel pressure. Refer to
.
b.
Disconnect ignition coil and injector harness connectors.
3.
Remove intake valve timing control solenoid valve. Refer to
EM-164, "Removal and Installation"
Camshaft bracket bolts
Step 1 (bolts 7 - 10)
: 1.96 N·m (0.2 kg-m, 17 in-lb)
Step 2 (bolts 1 - 6)
: 1.96 N·m (0.2 kg-m, 17 in-lb)
Step 3
: 5.88 N·m (0.6 kg-m, 52 in-lb)
Step 4
: 10.4 N·m (1.1 kg-m, 92 in-lb)
PBIC2050E
Standard
: –0.14 to 0.14 mm (–0.0055 to 0.0055 in)
EMQ0044D
CAMSHAFT
EM-195
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4.
Crank the engine, and then make sure that engine oil comes out
from camshaft bracket (No. 1) oil hole. End cranking after check-
ing.
WARNING:
• Be careful not to touch rotating parts (drive belts, idler
pulley, and crankshaft pulley, etc.).
CAUTION:
• Engine oil may squirt from intake valve timing control
solenoid valve installation hole during cranking. Use a
shop cloth to prevent the engine oil from spilling on com-
ponents and the vehicle.
• Do not allow engine oil to get on rubber components such
as drive belt or engine mount insulators. Immediately wipe off any splashed engine oil.
• Clean oil groove between oil strainer and intake valve timing control solenoid valve if engine oil does not
come out from camshaft bracket (No. 1) oil hole. Refer to
,
5.
Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.
• Clean oil groove if necessary. Refer to
,
6.
After inspection, installation of the remaining components is in the reverse order of removal.
Inspection for Leaks
The following are procedures for checking fluid leaks, lubricant leaks and exhaust gases leaks.
• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to
MA-16, "For North America: Fluids and Lubricants"
• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids includ-
ing engine oil and engine coolant.
• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission fluid, power steering fluid, brake fluid, etc.
PBIC2869E
Item
Before starting engine
Engine running
After engine stopped
Engine coolant
Level
Leakage
Level
Engine oil
Level
Leakage
Level
Other oils and fluid*
Level
Leakage
Level
Fuel
Leakage
Leakage
Leakage
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