2004 NISSAN TERRANO check engine

3) Using rod with outer diameter of 30 mm (1.18 in), press pistonpins out.
11. Remove lower cylinder block.
I The lower cylinder block is the lower part of the cylinder block,
which works as the main bearing cap (beam) and oil pan
mounting face.
1) Remove mounting bolts for engine sub-attachment shown by arrows in the figure.
2) Loosen and remove mounting bolts in the reverse order shown in the figure.
3) Insert flat-bladed screwdriver into 5 locations shown by arrows in the figure. Lift lower cylinder block evenly, and remove liquid
gasket.
CAUTION:
Prevent mating faces from being damaged.
4) When removing lower cylinder block, use slot to prevent dowel pin from interfering with engine sub-attachment.
I No part No. is given to lower cylinder block, because it is
machined with the cylinder block.
12. Remove crankshaft.
13. Remove main bearings and thrust bearings from cylinder block and lower cylinder block.
CAUTION:
Check mounting positions. Keep them to avoid confusion.
FEM090
FEM091
FEM092
FEM093
CYLINDER BLOCKZD
Disassembly (Cont'd)
EM-70
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INew connecting rods are classified into 8 weight classes at
factory. The same class connecting rods are used on a engine.
Weight grade symbol Weight class g (oz)
H 1,261 - 1,264 (44.5 - 44.6) I 1,264 - 1,267 (44.6 - 44.7)
K 1,267 - 1,270 (44.7 - 44.8) L 1,270 - 1,273 (44.8 - 44.9)
M 1,273 - 1,276 (44.9 - 45.0) O 1,276 - 1,279 (45.0 - 45.1) P 1,279 - 1,282 (45.1 - 45.2)
S 1,282 - 1,285 (45.2 - 45.3)
CYLINDER BLOCK TOP SURFACE DISTORTION
I Using scraper, remove gasket installed onto cylinder block sur-
face. Remove contamination such as oil, scale, and carbon.
CAUTION:
Keep broken pieces of gasket clear of oil and coolant pas-
sages.
I Use straightedge and feeler gauge to check block upper sur-
face for distortion.
Limit: 0.1 mm (0.004 in)
MAIN BEARING HOUSING INNER DIAMETER
I Install main bearing caps without main bearings. Tighten
mounting bolts to the specified torque.
I Use bore gauge to measure main bearing housing inner diam-
eter.
Standard: 74.981 - 75.000 mm (2.9520 - 2.9528 in) dia.
I If out of specification, replace cylinder block and lower cylinder
block.
PISTON TO CYLINDER BORE CLEARANCE
Cylinder bore inner diameter
IUsing bore gauge, measure cylinder inner diameters at 6 posi-
tions; top, middle, and bottom (A, B, C) in 2 directions (X, Y).
Cylinder inner diameter (Standard): 96.000 - 96.030 mm (3.7795 - 3.7807 in) dia.
Wear limit: 0.2 mm (0.008 in)
Out-of-round limit (X - Y): 0.02 mm (0.0008 in)
Taper limit (A - C): 0.02 mm (0.0008 in)
FEM106
FEM107
FEM108
FEM109
CYLINDER BLOCKZD
Inspection (Cont'd)
EM-74
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Assembly
1. Blow air sufficiently to inside coolant passage, oil passage,crankcase, and cylinder bore to remove foreign matter.
2. Install main bearings and thrust bearings.
1) Remove contamination, dust and oil from bearing mounting positions on cylinder block and main bearing caps.
2) Install thrust bearings on both sides of No. 4 housing on cylin- der block.
I Install thrust bearings with oil groove facing to crankshaft arm
(outside).
3) Being careful with the direction, install main bearings.
I Install main bearings with the oil holes and grooves onto the
cylinder block side, and those without oil holes and grooves
onto the lower cylinder block side.
I While installing bearings, apply engine oil to bearing surfaces
(inside). Do not apply oil to rear surfaces, but clean them com-
pletely.
I Align stopper notches on bearings to install them.
I Check that the oil holes on the cylinder block body are mated
with the oil hole positions on the bearings.
3. Install crankshaft to cylinder block.
I While rotating crankshaft by hand, check for smooth rotation.
4. Install lower cylinder block.
I Apply a continuous bead of liquid gasket to lower cylinder block
as shown in the figure.
I Using slots on engine sub-attachment, install the lower cylinder
block to the cylinder block, avoiding interference of dowel pins.
5. Tighten lower cylinder mounting bolts to the torque shown below in 3 consecutive steps in the order shown in the figure.
Unit: N ×m (kg-m, ft-lb)
Main bolt (Nos. 1 - 10) Sub-bolt (Nos. 11 - 20)
1st 20 (2.0, 14) 98 (10, 72)
2nd 98 (10, 72) 20 (2.0, 14)
3rd 167 - 176 (17 - 18, 123 - 130) 40 - 46 (4.0 - 4.7, 29 - 33)
I Sub-bolt No. 17 has shorter length than that of other sub-bolts.
FEM126
FEM127
FEM128
FEM092
CYLINDER BLOCKZD
EM-80
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6. Install mounting bolts for engine sub-attachment shown byarrows in the figure.
I After tightening bolts to the specified torque, check crankshaft
for smooth rotation.
I Check crankshaft end play.
Refer to EM-71, ªCRANKSHAFT END PLAYº.
7. Install pistons to connecting rod.
1) Using long nose pliers, install snap rings to grooves on piston rear side.
I Fit snap rings correctly into grooves.
2) Install pistons to connecting rods.
I Using industrial dryer, heat pistons up to approx. 60 to 70ÉC
(140 to 158ÉF) until piston pin can be pressed down by finger
touch. Then insert piston pins into piston and connecting rod
from front side of piston toward rear.
I Assemble piston and connecting rod with front mark of piston
crown and cylinder No. stamped on connecting rod being posi-
tioned as shown in the figure.
3) Install snap rings to front side of pistons.
I Refer to above 1) for precaution on snap ring installation.
I After installation, check connecting rods for smooth movement.
8. Use piston ring expander (multi-purpose tool) to install piston rings.
CAUTION:
When installing, prevent piston from being damaged.
I Install top ring and second ring with stamped surfaces facing
upward.
Identification stamp: Top ring: R
Second ring: RN
9. Install connecting rod bearings to connecting rods and caps.
I While installing connecting rod bearings, apply engine oil to
bearing surfaces (inside). Do not apply oil to rear surfaces, but
clean them completely.
I Align stoppers on connecting rod bearings with connecting rod
stopper notches to install connecting rod bearings.
FEM091
FEM131
FEM132
FEM133
CYLINDER BLOCKZD
Assembly (Cont'd)
EM-81
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10. Install piston and connecting rod assembly to crankshaft.
IMove crankshaft pin to be removed to BDC.
I Align cylinder position with cylinder No. on connecting rod to
install piston and connecting rod assembly.
I Using piston ring compressor (multi-purpose tool), install piston
and connecting rod assembly with front mark on piston crown
facing toward the front side of engine.
CAUTION:
When installing piston and connecting rod assembly, prevent
the big end of connecting rod from interfering with oil jet.
11. Install connecting rod caps and mounting nuts.
I Align cylinder No. stamped on connecting rod with that on cap
to install connecting rod cap.
I After tightening nuts, check crankshaft for smooth rotation.
I Check connecting rod side clearance.
Refer to EM-71, ªCONNECTING ROD SIDE CLEARANCEº.
12. Install rear oil seal and retainer assembly.
I Apply a continuous bead of liquid gasket to rear oil seal and
retainer assembly as shown in the figure.
13. Press fit pilot bushing into flywheel (M/T model).
1) Using drift with outer diameter of 35 mm, press fit spacer until it is in contact with the flywheel to prevent displacement at
removal.
2) Using drift with outer diameter of 20 mm, press fit pilot bushing by the length shown in the figure.
14. Install rear plate.
15. Install removed parts to engine in the reverse order of disas- sembly.
16. Remove engine from engine stand.
FEM134
FEM131
FEM053
SEM366G
CYLINDER BLOCKZD
Assembly (Cont'd)
EM-82
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2. Install cylinder head.
ICylinder head identification mark
3. Apply oil to threaded portion and seat surface of bolts and tighten cylinder head bolts using Tool.
CAUTION:
I Tightening procedure
1st: Tighten bolts to 39 - 44 N×m (4.0 - 4.5 kg-m, 29 - 33 ft-lb)
2nd: Tighten bolts to 54 - 59 N ×m
(5.5 - 6.0 kg-m, 40 - 43 ft-lb)
3rd: (1) Mark exhaust side of cylinder head and cylin-der head bolts with paint as shown.
(2) Turn all bolts 90   10 degrees clockwise.
(3) Check that paint mark of each bolt is facing the front of the vehicle.
4. Apply engine oil and install push rods.
5. Install rocker shaft assembly. Adjust intake and exhaust valve clearance carefully.
Refer to MA section in order to accomplish valve adjustment.
NEM179
SEM641B
SEM580C
SEM642B
CYLINDER HEADTD27Ti
Installation (Cont'd)
EM-115
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23. Remove bearing cap and crankshaft. Loosen bearing cap nutsin 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 þ Y) limit: Less than 0.020 mm (0.0008 in)
Taper (A þ 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 þ B):Standard0.002 to 0.012 mm (0.0001 to 0.0005 in)
Limit Less than 0.1 mm (0.004 in)
NEM007
SEM038
MEM042A
NEM002
ENGINE OVERHAULTD27Ti
Disassembly (Cont'd)
EM-127
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2. Measure outside diameter ªDº of piston pin.
3. Calculate connecting rod small end bushing clearance.Connecting rod small end bushing clearance = A þ DStandard0.025 - 0.043 mm (0.0010 - 0.0017 in)
Limit 0.15 mm (0.0059 in)
REPLACEMENT OF CONNECTING ROD BUSHING
(Small end)
1. Drive in the small end bushing until it is flush with the end sur- face of the rod.
Be sure to align the oil holes.
2. After driving in the small end bushing, ream the bushing. Small end bushing inside diameter:Finished size30.025 - 30.038 mm (1.1821 - 1.1826 in)
CRANKSHAFT
1. Check crankshaft journals and pins for score, bias, wear or cracks. If faults are minor, correct with fine emery paper.
2. Check journals and pins with a micrometer for taper and out- of-round.Out-of-round (X þ Y): StandardLess than 0.01 mm (0.0004 in)
Limit 0.02 mm (0.0008 in)
Taper (A þ B): StandardLess than 0.01 mm (0.0004 in)
Limit 0.02 mm (0.0008 in)
3. Check crankshaft runout. Runout (Total Indicator Reading)Standard0 - 0.03 mm (0 - 0.0012 in)
Limit 0.10 mm (0.0039 in)
SEM416B
EM715
SEM662B
ENGINE OVERHAULTD27Ti
Inspection (Cont'd)
EM-130
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