1998 NISSAN PICK-UP lock

(4) 4th, 3rd and 2nd camshaft bushings
lInstall in the same manner as rear camshaft bushing.
lWhen setting 4th through 2nd bushings on replacer bar, tape
the bar to prevent movement.
(5) Front camshaft bushing
lUsing 1st bushing adapter, position front camshaft bushing
so that oil hole in cylinder block is aligned with oil hole in
bushing.
SEM602C
SEM999B
SEM001C
ENGINE OVERHAULTD
Inspection and Replacement (Cont'd)
EM-84

lPress the bushing until its front end is 0.5 mm (0.020 in) from
the front surface of the cylinder block.
3. Check camshaft bushing clearance.
Refer to SDS, EM-101.
4. Install new welch plug into rear camshaft bushing hole with
a drift.
Apply liquid sealer.
CAMSHAFT ALIGNMENT
1. Check camshaft journal and cam surface for bend, wear or
damage.
If fault is beyond limit, replace.
2. Check camshaft bend at center journal.
If bend is greater than specified limit, repair or replace cam-
shaft.
Camshaft bend
(Total indicator reading): mm (in)
Standard
Less than 0.02 (0.0008)
Limit
Less than 0.06 (0.0024)
DEM053
SEM987B
SEM034
SEM670B
ENGINE OVERHAULTD
Inspection and Replacement (Cont'd)
EM-85

Install piston assembly.
CAUTION:
lStretch the piston rings only enough to fit them in the
piston grooves.
lAlways install new piston rings with the position marks
facing up.
Identification color
Top ring Yellow
2nd ring Red
lInstall No. 1 piston ring in such a way that its gap faces
the direction of the piston pin; and then install piston
rings so that their gap positioned at 180É to one another.
CRANKSHAFT
1. Install crankshaft.
(1) Set main bearings in the proper position on cylinder block.
a. If either crankshaft, cylinder block or main bearing is
reused again, it is necessary to measure main bearing
clearance.
b. Upper bearings have oil hole and oil groove, however
lower bearings do not.
(2) Apply engine oil to crankshaft journal and pin and install
crankshaft.
(3) Install main bearing caps.
a. Install main bearing cap with the number facing the front of
vehicle.
b. Apply engine oil to main bearing cap and cylinder block con-
tact surfaces.
c. Install rear oil seal assembly. Apply engine oil to contact
surface of rear end oil seal and crankshaft.
(4) Install crankshaft thrust washer at the 4th journal from front.
Install thrust washer so that oil groove can face crankshaft.
DEM059
DEM055
SEM674BA
SEM057
ENGINE OVERHAULTD
Assembly (Cont'd)
EM-87

General Specifications
Cylinder arrangement 4, in-line
Displacement cm
3(cu in) 2,389 (145.78)
Bore x stroke mm (in) 89 x 96 (3.50 x 3.78)
Valve arrangement OHC
Firing order 1-3-4-2
Number of piston rings
Compression 2
Oil 1
Number of main bearings 5
Compression ratio 8.6
Unit: kPa (bar, kg/cm2, psi)/rpm
Compression pressure
Standard 1,324 (13.24, 13.5, 192)/300
Minimum 981 (9.8, 10, 142)/300
Differential limit between cylin-
ders98 (0.98, 1.0, 14)/300
Inspection and Adjustment
CYLINDER BLOCK
SEM618F
Unit: mm (in)
Standard Limit
DistortionÐ 0.1 (0.004)
Cylinder boreInner diameterGrade 1 89.000 - 89.010 (3.5039 - 3.5043)
0.2 (0.008)* Grade 2 89.010 - 89.020 (3.5043 - 3.5047)
Grade 3 89.020 - 89.030 (3.5047 - 3.5051)
Out-of-round (X þ Y) Less than 0.015 (0.0006) Ð
Taper (A þ B) Less than 0.010 (0.0004) Ð
Difference in inner diameter between cylinders Less than 0.05 (0.0020) 0.2 (0.008)
Piston-to-cylinder clearance 0.010 - 0.020 (0.0004 - 0.0008) Ð
Cylinder block height
(From crankshaft center)246.95 - 247.05 (9.7224 - 9.7264) 0.2 (0.008)**
* Wear limit
** Total amount of cylinder head resurfacing and cylinder block resurfacing
CYLINDER HEAD
Unit: mm (in)
Standard Limit
Height (H)98.8 - 99.0
(3.890 - 3.898)0.2 (0.008)*
Surface distortion 0.03 (0.0012) 0.1 (0.004)
* Total amount of cylinder head resurfacing and cylinder block resur-
facing
SERVICE DATA AND SPECIFICATIONS (SDS)KA
EM-91

Valve guide
Unit: mm (in)
Standard Service
Valve guide outside diameter12.033 - 12.044
(0.4737 - 0.4742)Ð
Valve guide inner diameter
(Finished size)8.000 - 8.015
(0.3150 - 0.3156)
Cylinder head valve guide
hole diameter12.00 - 12.011
(0.4724 - 0.4729)Ð
Interference fit of valve guide0.022 - 0.044
(0.0009 - 0.0017)
Standard Max. tolerance
Stem to guide clearance
Intake0.023 - 0.053
(0.0009 - 0.0021)0.15 (0.0059)
Exhaust0.04 - 0.07
(0.0016 - 0.0028)0.20 (0.0079)
Valve deflection limit
Intake 0.30 (0.0118)
Exhaust 0.40 (0.0157)
Valve spring
Free length mm (in)
Painted red 53.4 (2.102)
Pressure height
mm/N (mm/kg, in/lb)
Painted red31.8/713.9 - 788.5
(31.8/72.8 - 80.4,
1.252/160.5 - 177.3)
Assembled height
mm/N (mm/kg, in/lb)
Standard42.3/314.8 - 361.9
(42.3/32.1 - 36.9,
1.665/70.8 - 81.4)
Limit42.3/270.7
(42.3/27.6, 1.665/60.9)
Out-of-square mm (in) 2.3 (0.091)
VALVE LIFTER AND PUSH ROD
Unit: mm (in)
Standard Limit
Valve lifter outer diameter25.960 - 25.970
(1.0220 - 1.0224)Ð
Cylinder block valve lifter
hole diameter26.000 - 26.033
(1.0236 - 1.0249)Ð
Valve lifter to lifter hole clear-
ance0.030 - 0.073
(0.0012 - 0.0029)0.20 (0.0079)
Push rod bend (TIR)*Less than
0.3 (0.012)0.5 (0.020)
*: Total indicator reading
Rocker shaft and rocker arm
Unit: mm (in)
Standard Limit
Rocker shaft
Outer diameter19.979 - 20.00
(0.7866 - 0.7874)Ð
Rocker shaft bend (TIR)0 - 0.15
(0 - 0.0059)Less than
0.30 (0.0118)
Rocker arm
Inner diameter20.014 - 20.035
(0.7880 - 0.7888)Ð
Clearance between rocker
arm and rocker shaft0.014 - 0.056
(0.0006 - 0.0022)0.15 (0.0059)
CYLINDER HEAD TO VALVE DISTANCE
Unit: mm (in)
SEM724C
Standard Limit
Intake0.7 - 1.3
(0.028 - 0.051)1.70 (0.067)
Exhaust0.7 - 1.3
(0.028 - 0.051)1.70 (0.067)
SERVICE DATA AND SPECIFICATIONS (SDS)TD
Inspection and Adjustment (Cont'd)
EM-99

CYLINDER BLOCK AND CYLINDER LINER
Unit: mm (in)
DEM057-N
Nominal cylinder block height ``H''
(From crankshaft center)252.95 - 253.05 (9.9586 - 9.9626)
Surface flatness (Without cylinder liner)
StandardLess than 0.05 (0.0020)
Limit0.2 (0.008)
Cylinder bore (Without cylinder liner)
Inner diameter
Standard 95.900 - 95.920 (3.7756 - 3.7764)
Cylinder bore
Inner diameter
Standard
Grade No. 1 92.900 - 92.910 (3.6575 - 3.6579)
Grade No. 2 92.910 - 92.920 (3.6579 - 3.6583)
Grade No. 3 92.920 - 92.930 (3.6583 - 3.6587)
Wear limit0.20 (0.0079)
Out-of-round (X þ Y) standard Less than 0.020 (0.0008)
Taper (A þ B) standard Less than 0.020 (0.0008)
Projection ``S'' 0.02 - 0.09 (0.0008 - 0.0035)
Deviation of each cylinder ``S'' Less than 0.05 (0.0020)
Interference fit cylinder liner to block þ0.01 to 0.03 (þ0.0004 to 0.0012)
SERVICE DATA AND SPECIFICATIONS (SDS)TD
Inspection and Adjustment (Cont'd)
EM-102

Unit: mm (in)
SEM427
Cylinder liner
diameter ``D'' (service)*92.950 - 92.970
(3.6594 - 3.6602)
*: Before installing in cylinder block
PISTON, PISTON RING AND PISTON PIN
Available piston
Unit: mm (in)
SEM778A
Piston skirt diameter ``A''
Standard
Grade No. 1 92.840 - 92.850 (3.6551 - 3.6555)
Grade No. 2 92.850 - 92.860 (3.6555 - 3.6559)
Grade No. 3* 92.860 - 92.870 (3.6559 - 3.6563)
``a'' dimension70 (2.76)
Piston pin hole diameter 29.997 - 30.005 (1.1810 - 1.1813)
Piston to cylinder liner clearance 0.05 - 0.07 (0.0020 - 0.0028)
*: Grade No. 3 piston is not provided as a service part.
SERVICE DATA AND SPECIFICATIONS (SDS)TD
Inspection and Adjustment (Cont'd)
EM-103