Nissan Terrano r20e. Manual — part 311
(4) 4th, 3rd and 2nd camshaft bushings.
Install in the same manner as rear camshaft bushing.
(5) Front camshaft bushing.
Using 1st bushing adapter, position front camshaft bushing so
that oil hole in cylinder block is aligned with oil hole in bushing.
The camshaft bushing of the front side must be inserted at 0.5
mm (0.020 in) from the extreme front of cylinder block.
NEM173
SEM001C
EEM105
ENGINE OVERHAUL
TD27Ti
Inspection (Cont’d)
EM-135
3. Check camshaft bushing clearance.
4. Install new welch plug with a drift.
Apply liquid sealer.
When setting 4th through 2nd bushings on replacer bar, tape
the bar to prevent movement.
CAMSHAFT ALIGNMENT
1. Check camshaft journal and cam surface for cracks, wear or
damage.
If fault is beyond limit, replace.
2. Check camshaft runout at center journal.
If runout is greater than specified limit, repair or replace cam-
shaft.
Camshaft runout
(Total indicator reading):
Standard
Less than 0.02 mm (0.0008 in)
Limit
Less than 0.06 mm (0.0024 in)
SEM987B
SEM034
SEM999B
SEM670B
ENGINE OVERHAUL
TD27Ti
Inspection (Cont’d)
EM-136
3. Measure camshaft end play between locating plate and gear.
If beyond the specified limit, replace camshaft locating plate.
Camshaft end play:
Standard
0.08 - 0.28 mm (0.0031 - 0.0110 in)
Limit
Less than 0.5 mm (0.020 in)
4. Measure camshaft cam height. If beyond the specified limit,
replace camshaft.
Cam height:
Standard
Intake
41.570 mm (1.6366 in)
Exhaust
41.900 mm (1.6496 in)
Limit
Intake
Less than 41.20 mm (1.6220 in)
Exhaust
Less than 41.40 mm (1.6299 in)
SEM671B
SEM037
ENGINE OVERHAUL
TD27Ti
Inspection (Cont’d)
EM-137
Assembly
PISTON
1. Assemble pistons, piston pins, snap rings and connecting rods.
a. Numbers are stamped on the connecting rod and cap cor-
responding to each cylinder. Care should be taken to avoid
a wrong combination including bearing.
b. When inserting piston pin in connecting rod, heat piston
with a heater or hot water [approximately 60 to 70°C (140
to 158°F)] and apply engine oil to pin and small end of
connecting rod.
c. After assembling, ascertain that piston swings smoothly.
2. Install piston assembly.
CAUTION:
a. Stretch the piston rings just enough to fit them in the pis-
ton grooves.
b. Be sure the manufacturer’s mark faces upward.
c. Install No. 1 piston ring (oil ring) in such a way that its gap
faces the direction of engine front, as shown in illustration
at left; and then install 2nd and top rings so that their gap
is positioned at 120° one to 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.
NEM174
NEM175
NEM182
NEM176
ENGINE OVERHAUL
TD27Ti
EM-138
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