Nissan Terrano model r20 series 2004. Instruction — part 55
11. Remove injection pump gear.
12. Remove injection pump.
13. Remove idler gear and idler shaft.
14. Remove valve lifters, camshaft gear and camshaft.
15. Remove vacuum pump assembly.
16. Remove oil pump assembly.
17. Remove crankshaft gear.
18. Remove flywheel and rear plate.
19. Remove connecting rod caps.
20. Remove pistons.
21. Remove rear oil seal retainer.
22. Remove oil strainer.
SEM654B
NEM168
NEM169
SEM657B
ENGINE OVERHAUL
TD27Ti
Disassembly (Cont’d)
EM-126
23. Remove bearing cap and crankshaft. Loosen bearing cap nuts
in numerical order, as shown at left.
Place the bearings and caps in their proper order.
Inspection
CYLINDER BLOCK DISTORTION
1. Clean upper face of cylinder block and measure the distortion.
Standard:
Less than 0.05 mm (0.0020 in)
Limit:
0.2 mm (0.008 in)
2. If out of specification, resurface it.
CYLINDER WEAR
1. Measure cylinder bore for out-of-round and taper with a bore
gauge. If beyond the limit, rebore all 4 cylinders. Replace cyl-
inder block if necessary.
Standard inside diameter:
96.000 - 96.030 mm (3.7795 - 3.7807 in)
Refer to SDS
Wear limit:
Less than 0.20 mm (0.0079 in)
Out-of-round (X − Y) limit:
Less than 0.020 mm (0.0008 in)
Taper (A − B) limit:
0.20 mm (0.0079 in)
2. Check for scratches or abrasions. If abrasions are found, hone
cylinder bore.
PISTON AND PISTON PIN CLEARANCE
Check clearance between pistons and piston pins.
Clearance (A − B):
Standard
0.002 to 0.012 mm (0.0001 to 0.0005 in)
Limit
Less than 0.1 mm (0.004 in)
NEM007
SEM038
MEM042A
NEM002
ENGINE OVERHAUL
TD27Ti
Disassembly (Cont’d)
EM-127
PISTON RING SIDE CLEARANCE
Side clearance:
Top ring
0.00 - 0.05 mm (0.0 - 0.0020 in)
2nd ring
0.04 - 0.072 mm (0.0016 - 0.0028 in)
Oil ring
0.02 - 0.055 mm (0.0008 - 0.0022 in)
Max. limit of side clearance:
Top ring
0.50 mm (0.0197 in)
2nd ring
0.30 mm (0.0118 in)
Oil ring
0.15 mm (0.0059 in)
PISTON RING END GAP
Standard ring gap:
Top ring
0.25 - 0.40 mm (0.0098 - 0.0157 in)
2nd ring
0.40 - 0.55 mm (0.0157 - 0.0217 in)
Oil ring
0.25 - 0.55 mm (0.0098 - 0.0217 in)
Max. limit of ring gap:
1.5 mm (0.059 in)
BEARING CLEARANCE
Main bearing
1. Install main bearings to cylinder block and main bearing cap.
2. Install main bearing cap to cylinder block.
Tighten all bolts in correct order and in two or three stages.
3. Measure inside diameter “A” of main bearing.
4. Measure outside diameter “Dm” of main journal in crankshaft.
EEM117
SEM905
YEM044
YEM045
ENGINE OVERHAUL
TD27Ti
Inspection (Cont’d)
EM-128
5. Calculate main bearing clearance.
Main bearing clearance = A − Dm
Standard
0.035 - 0.083 mm (0.0014 - 0.0033 in)
Limit
Less than 0.15 mm (0.0059 in)
CONNECTING ROD BEARING (Big end)
1. Install connecting rod bearing to connecting rod and cap.
2. Install connecting rod cap to connecting rod.
Apply oil to the thread portion of bolts and seating surface of
nuts.
3. Measure inside diameter “A” of bearing.
4. Measure outside diameter “Dp” of pin journal in crankshaft.
5. Calculate connecting rod bearing clearance.
Connecting rod bearing clearance = A − Dp
Standard
0.035 - 0.077 mm
(0.0014 - 0.0030 in)
Limit
Less than 0.15 mm (0.0059 in)
CONNECTING ROD BEND AND TORSION
Bend and torsion:
Limit
0.15 mm (0.0059 in)
per 200 mm (7.87 in) length
CONNECTING ROD BUSHING CLEARANCE (Small end)
1. Measure inside diameter “A” of connecting rod small end bush-
ings.
YEM046
EM133
YEM047
ENGINE OVERHAUL
TD27Ti
Inspection (Cont’d)
EM-129
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