NISSAN PICK-UP 2004 Owner's Manual

Room Lamp Harness/LHD Models
DOUBLE CAB
HEL141C
HARNESS LAYOUT
EL-6008

Room Lamp Harness/RHD Models
DOUBLE CAB
HEL142C
HARNESS LAYOUT
EL-6009

ENGINE MECHANICAL
SECTION
EM
MODIFICATION NOTICE:
+Valve lifter of ZD30DDT engine has been changed from a type without shim to a type with adjusting shim.
For information not included here, refer to information for ZD30DDT engines in NISSAN model D22 series
SERVICE MANUAL Supplement-V (Publication No. SM3E00-1D22E0E).
CONTENTS
PREPARATION................................................... 6002
Special Service Tools ...................................... 6002
ZD
CAMSHAFT......................................................... 6003
Removal and Installation ................................. 6003
Inspection ......................................................... 6004
VALVE CLEARANCE INSPECTIONS AND
ADJUSTMENTS................................................... 6005Adjustments ..................................................... 6005
CYLINDER HEAD................................................ 6008
Disassembly and Assembly ............................. 6008
SERVICE DATA AND SPECIFICATIONS
(SDS).................................................................... 6009
Valve ................................................................ 6009
<SUPPLEMENT-VI>
EM

Special Service Tools
Tool number
Tool nameDescription
KV101151S0
Lifter stopper set
V1KV10115110
Camshaft pliers
V2KV10115120
Lifter stopper
NT041
Changing adjusting shims
PREPARATION
EM-6002

Removal and Installation
SEM203HA
CAMSHAFTZD
EM-6003

Inspection
VISUAL INSPECTION OF VALVE LIFTER AND
ADJUSTING SHIM
+Check if surfaces of valve lifter and adjusting shim have any
wear or cracks.
+Replace valve lifter or adjusting shim if necessary.
+Select the thickness of adjusting shim so that valve clearance
is the standard when replacing. Refer to 6005, ªAdjust-
mentsº.
VALVE LIFTER OUTER DIAMETER
Measure the outer diameter of the valve lifter with a micrometer.
Standard: 34.450 - 34.465 mm (1.3563 - 1.3569 in)
LIFTER GUIDE INNER DIAMETER
Measure the lifter guide inner diameter of the cylinder head with
an inside micrometer.
Standard: 34.495 - 34.515 mm (1.3581 - 1.3589 in)
VALVE LIFTER CLEARANCE CALCULATIONS
Clearance = Lifter guide inner diameter þ Valve lifter outer diam-
eter
Standard: 0.030 - 0.065 mm (0.0012 - 0.0026 in)
If it exceeds the standard value, refer to the outer diameter and
inner diameter standard values and replace valve lifter and/or
cylinder head.
SEM160D
FEM018
PBIC0367E
CAMSHAFTZD
EM-6004

Adjustments
NOTE:
Adjust valve clearance while engine is cold.
+Remove the adjusting shim for parts which are outside the
specified valve clearance.
1. Remove the spill tube. Refer to ªBASIC SERVICE PROCE-
DUREº in EC section.
2. Rotate the crankshaft to face the cam nose for adjusting
shims that are to be removed upward.
3. Thoroughly wipe off engine oil on the upper side of the cyl-
inder head (for the air gun used in step 7).
4. Move the round hole of the adjusting shim to the front with
an extra-fine screwdriver or like that.
CAUTION:
Perform (the above procedure) while camshaft do not con-
tact with adjusting shim.
5. Grip the camshaft with camshaft pliers (SST), then using the
camshaft as a support point, push the adjusting shim down-
ward to compress the valve spring.
CAUTION:
Do not damage the camshaft, cylinder head, and the outer
circumference of the valve lifter.
6. With the valve spring in a compressed state, remove the
camshaft pliers (SST) by securely setting the outer circum-
ference of the valve lifter with the end of the lifter stopper
(SST).
+Hold the lifter stopper by hand until the shim is removed.
CAUTION:
Do not retrieve the camshaft pliers forcefully, as the cam-
shaft will be damaged.
7. Remove the adjusting shim from the valve lifter by blowing
air through the round hole of the adjusting shim with an air
gun.
CAUTION:
+When blowing, use goggles to protect your eye.
+To prevent any remaining oil from being blown around,
thoroughly wipe the area clean.
PBIC0373E
FEM029A
PBIC0374E
VALVE CLEARANCE INSPECTIONS AND ADJUSTMENTSZD
EM-6005

8. Remove the adjusting shim by using a magnetic holder.
9. Measure the thickness of the adjusting shim using a
micrometer.
+Measure near the center of the shim (the part that touches
the camshaft).
10. Select the new adjusting shim from the following methods.
Calculation method of the adjusting shim thickness:
t=t
1+(C1þC2)
t = Thickness of replacement adjusting shim
t
1= Thickness of removed adjusting shim
C
1= Measured valve clearance
C
2= Specified valve clearance
When engine is cold [Approximately 20ÉC (68ÉF)]
0.35 mm (0.014 in)
+New adjusting shims have the thickness stamped on the rear
side.
Stamped Shim thickness mm (in)
2.35
2.40
.
.
.
3.052.35 (0.0925)
2.40 (0.0945)
.
.
.
3.05 (0.1201)
+The thickness of the adjusting shim ranges from 2.35 to 3.05
mm (0.0925 to 0.1201 in), where in the space of 0.05 mm
(0.0020 in). There are 15 types of shims available.
11. Fit the selected adjusting shim to the valve lifter.
CAUTION:
Place the stamped side of the adjusting shim to the valve
lifter.
PBIC0375E
SEM145D
JEM184G
VALVE CLEARANCE INSPECTIONS AND ADJUSTMENTSZD
Adjustments (Cont'd)
EM-6006

12. Compress the valve spring using the camshaft pliers (SST)
and remove the lifter stopper (SST).
13. Rotate the crankshaft 2 to 3 times by hand.
14. Confirm that the valve clearance is within the specification.
Valve clearance:
When engine is cold [Approximately 20ÉC (68ÉF)]
Intake and exhaust
0.30 - 0.40 mm (0.012 - 0.016 in)
15. Install remaining parts in the reverse order of removal.
FEM029A
VALVE CLEARANCE INSPECTIONS AND ADJUSTMENTSZD
Adjustments (Cont'd)
EM-6007

Disassembly and Assembly
FEM081A
CYLINDER HEADZD
EM-6008