EM-96Revision: June 2006
CYLINDER BLOCK
2007 Versa
When replacing piston and piston pin assembly, refer to EM-99, "Piston to Cylinder Bore Clearance" .
NOTE:
Piston is available together with piston pin as assembly.
Piston pin (piston pin hole) grade is provided only for the parts installed at the plant. For service parts,
no grades can be selected. (Only grade “0” is available.)
PISTON RING SIDE CLEARANCE
Measure the side clearance of piston ring and piston ring groove
with a feeler gauge (A).
If the measured value exceeds the limit, replace piston ring, and measure again. If it still exceeds the limit,
replace piston also.
PISTON RING END GAP
Make sure that cylinder bore inner diameter is within specification. Refer to EM-99, "Cylinder Bore Inner
Diameter" .
Lubricate with new engine oil to piston (1) and piston ring (2),
and then insert (A) piston ring until middle of cylinder (B) with
piston, and measure piston ring end gap with a feeler gauge (C).
If the measured value exceeds the limit, replace piston ring, and measure again. If it still exceeds the limit,
re-bore cylinder and use oversized piston and piston rings.Standard:
Top ring : 0.04 - 0.08 mm (0.002 - 0.003 in)
2nd ring : 0.03 - 0.07 mm (0.001 - 0.003 in)
Oil ring : 0.015 - 0.185 mm (0.001 - 0.007 in)
Limit:
Top ring : 0.11 mm (0.0043 in)
2nd ring : 0.10 mm (0.0039 in)
PBIC3280J
Standard:
Top ring : 0.20 - 0.30 mm (0.008 - 0.012 in)
2nd ring : 0.50 - 0.65 mm (0.020 - 0.026 in)
Oil ring
(rail ring) : 0.15 - 0.45 mm (0.006 - 0.018 in)
Limit:
Top ring : 0.51 mm (0.020 in)
2nd ring : 0.83 mm (0.033 in)
Oil ring
(rail ring): 0.78 mm (0.031 in)
PBIC3267J
CYLINDER BLOCK
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CONNECTING ROD BEND AND TORSION
Check with a connecting rod aligner.
If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BIG END DIAMETER
Install connecting rod cap (1) without connecting rod bearing
installed, and tightening connecting rod bolts to the specified
torque. Refer to EM-81, "
ASSEMBLY" for the tightening proce-
dure.
Measure the inner diameter of connecting rod big end with an
inside micrometer.
If out of the standard, replace connecting rod assembly.
CONNECTING ROD BUSHING OIL CLEARANCE
Connecting Rod Bushing Inner Diameter
Measure the inner diameter of connecting rod bushing with an inside
micrometer (A).
C : Feeler gauge
Bend (A):
Limit: 0.15 mm (0.0059 in) per 100 mm (3.94 in) length
Torsion (B):
Limit: 0.30 mm (0.0118 in) per 100 mm (3.94 in) length
PBIC3268J
2 : Connecting rod
A : Example
B : Measuring direction of inner diameter
Standard: 47.000 - 47.013 mm (1.8504 - 1.8509 in)PBIC3269J
Standard: 20.000 - 20.012 mm (0.7874 - 0.7879 in)
PBIC3270J
EM-98Revision: June 2006
CYLINDER BLOCK
2007 Versa
Piston Pin Outer Diameter
Measure the outer diameter of piston pin with a micrometer (A).
Connecting Rod Bushing Oil Clearance
(Connecting rod bushing oil clearance) = (Connecting rod bushing inner diameter) – (Piston pin outer diame-
ter)
If the measured value is out of the standard, replace connecting rod assembly and/or piston and piston pin
assembly.
If replacing piston and piston pin assembly, refer to EM-95, "PISTON TO PISTON PIN OIL CLEARANCE"
.
If replacing connecting rod assembly, refer to EM-98, "Connecting Rod Bushing Oil Clearance" to select
connecting rod bearing.
CYLINDER BLOCK TOP SURFACE DISTORTION
Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon,
or other contamination.
CAUTION:
Be careful not to allow gasket flakes to enter engine oil or engine coolant passages.
Measure the distortion on the cylinder block upper face at some
different points in six directions with a straight edge (A) and
feeler gauge (B).
If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER
Install main bearing cap without main bearings installed, and tighten main bearing cap bolts to the speci-
fied torque. Refer to EM-81, "
ASSEMBLY" for the tightening procedure.
Measure the inner diameter of main bearing housing with a bore gauge. Standard: 19.989 - 19.995 mm (0.7870 - 0.7872 in)
PBIC3266J
Standard : 0.005 - 0.023 mm (0.0002 - 0.0009 in)
Limit : 0.03 mm (0.0012 in)
Limit: 0.1 mm (0.004 in)
PBIC3250J
EM-100Revision: June 2006
CYLINDER BLOCK
2007 Versa
If it exceeds the limit, replace piston and piston pin assembly and/or cylinder block. Refer to EM-87,
"HOW TO SELECT PISTON" .
CRANKSHAFT MAIN JOURNAL DIAMETER
Measure the outer diameter of crankshaft main journals with a
micrometer (A).
If out of the standard, measure the main bearing oil clearance.
Then use undersize bearing. Refer to EM-101, "
MAIN BEARING
OIL CLEARANCE" .
CRANKSHAFT PIN JOURNAL DIAMETER
Measure the outer diameter of crankshaft pin journal with a micrometer.
If out of the standard, measure the connecting rod bearing oil clearance. Then use undersize bearing.
Refer to EM-101, "
CONNECTING ROD BEARING OIL CLEARANCE" .
OUT-OF-ROUND AND TAPER OF CRANKSHAFT
Measure the dimensions at four different points as shown on
each main journal and pin journal with a micrometer.
Out-of-round is indicated by the difference in dimensions
between “X” and “Y” at “A” and “B”.
Taper is indicated by the difference in dimension between “A”
and “B” at “X” and “Y”.
If the measured value exceeds the limit, correct or replace crankshaft.
If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then
select main bearing and/or connecting rod bearing. Refer to EM-101, "
MAIN BEARING OIL CLEAR-
ANCE" and/or EM-101, "CONNECTING ROD BEARING OIL CLEARANCE" .
CRANKSHAFT RUNOUT
Place a V-block on a precise flat table to support the journals on
the both end of the crankshaft.
Place a dial indicator (A) straight up on the No. 3 journal.
While rotating crankshaft, read the movement of the pointer on
the dial indicator. (Total indicator reading)
If it exceeds the limit, replace crankshaft.Standard: 51.959 - 51.979 mm (2.0456 - 2.0464 in) dia.
PBIC3457J
Standard: 43.953 - 43.971 mm (1.7304-1.7311 in) dia.
Limit:
Out-of-round (Difference between “X” and “Y”)
: 0.0035 mm (0.0001 in)
Taper (Difference between “A” and “B”)
: 0.0035 mm (0.0001 in)
PBIC3459J
Standard : 0.05 mm (0.0020 in)
Limit : 0.10 mm (0.0040 in)
PBIC3458J
CYLINDER BLOCK
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CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation
Install connecting rod bearings (2) to connecting rod (3) and
connecting rod bearing cap (1), and tighten connecting rod bolts
to the specified torque. Refer to EM-81, "
ASSEMBLY" for tight-
ening procedure.
Measure the inner diameter of connecting rod bearing with an
inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diame-
ter) – (Crankshaft pin journal diameter)
If clearance exceeds the limit, select proper connecting rod bearing according to connecting rod big end
diameter and crankshaft pin journal diameter to obtain specified bearing oil clearance. Refer to EM-88,
"HOW TO SELECT CONNECTING ROD BEARING" .
Method of Using Plastigage
Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely.
Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding
oil holes.
Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the speci-
fied torque. Refer to EM-81, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Never rotate crankshaft.
Remove connecting rod cap and bearing, and using the scale
(A) on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation
Install main bearings (3) to cylinder block (1) and main bearing
cap (2), and tighten main bearing cap bolts to the specified
torque. Refer to EM-81, "
ASSEMBLY" for the tightening proce-
dure.
Measure the inner diameter of main bearing with a bore gauge.
(Bearing oil clearance) = (Main bearing inner diameter) – (Crank-
shaft main journal diameter)
A : Example
B : Inner diameter measuring direction
Standard : 0.037 - 0.047 mm (0.0015 - 0.0019 in)
Limit : 0.07 mm (0.0028 in)
PBIC3275J
PBIC3276J
A : Example
B : Inner diameter measuring direction
Standard:
No. 1, 4 and 5 journals
: 0.024 - 0.034 mm (0.0009 - 0.0013 in)
No. 2 and 3 journalsPBIC3277J
EM-102Revision: June 2006
CYLINDER BLOCK
2007 Versa
If clearance exceeds the limit, select proper main bearing according to main bearing inner diameter and
crankshaft main journal diameter to obtain specified bearing oil clearance. Refer to EM-91, "
HOW TO
SELECT MAIN BEARING" .
Method of Using Plastigage
Remove engine oil and dust on crankshaft main journal and the surfaces of each bearing completely.
Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding
oil holes.
Install main bearings to cylinder block and main bearing cap, and tighten main bearing cap bolts to the
specified torque. Refer to EM-81, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Never rotate crankshaft.
Remove main bearing cap and bearings, and using the scale (A)
on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING CRUSH HEIGHT
When main bearing cap is removed after being tightened to the
specified torque with main bearings (1) installed, the tip end of
bearing must protrude (B). Refer to EM-81, "
ASSEMBLY" for
the tightening procedure.
If the standard is not met, replace main bearings.
CONNECTING ROD BEARING CRUSH HEIGHT
When connecting rod bearing cap is removed after being tight-
ened to the specified torque with connecting rod bearings (1)
installed, the tip end of bearing must protrude. Refer to EM-81,
"ASSEMBLY" for the tightening procedure (B).
If the standard is not met, replace connecting rod bearings.: 0.012 - 0.022 mm (0.0005 - 0.0009 in)
Limit : 0.065 mm (0.0026 in)
PBIC3278J
A : Example
Standard : There must be crush height.
PBIC3279J
A : Example
Standard : There must be crush height.
PBIC3279J
CYLINDER BLOCK
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MAIN BEARING CAP BOLT OUTER DIAMETER
Measure the outer diameters (“d1 ”, “d2” ) at two positions as
shown.
If reduction appears in places other than “B” range, regard it as
“d
2 ”.
If it exceeds the limit (a large difference in dimensions), replace
main bearing cap bolt with a new one.
CONNECTING ROD BOLT OUTER DIAMETER
Measure the outer diameter “d” at position as shown.
If reduction appears in a position other than “d”, regard it as “d”.
When “d” exceeds the limit (when it becomes thinner), replace
connecting rod bolt with a new one.
CLOGGED OR DAMAGED OIL FILTER (FOR INTAKE VALVE TIMING CONTROL)
Make sure that there is no foreign material on the oil filter and
check it for clogging.
–Clean it if necessary.
Check the oil filter for damage.
–Replace it if necessary.
FLYWHEEL DEFLECTION (M/T MODELS)
Measure the deflection of flywheel contact surface to clutch with
a dial indicator (A).
Measure the deflection at 210 mm (8.27 in) diameter.
If measured value is out of the standard, replace flywheel.
If a trace of burn or discoloration is found on the surface, repair it
with sandpaper.
CAUTION:
When measuring, keep magnetic fields (such as dial indicator
stand) away from signal plate of the rear end of crankshaft.
MOVEMENT AMOUNT OF FLYWHEEL (M/T MODELS)
CAUTION:
Never disassemble double mass flywheel.
Movement Amount of Thrust (Fore-and-Aft) Direction
Measure the movement amount of thrust (fore-and-aft) direction when 100 N (10.2 kg, 22 lb) force is
added at the portion of 125 mm (4.92 in) radius from the center of flywheel.
A : “d1” measuring position
B : “d2” measuring position
Limit (“d1 ” – “d2 ”): 0.15 mm (0.0059 in)
PBIC4015E
Limit: 7.75 mm (0.3051 in)
PBIC4016E
PBIC3273J
Limit : 0.45 mm (0.0177 in) or less.
PBIC4006E
SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS00U80
GENERAL SPECIFICATIONS
DRIVE BELT
WATER CONTROL VALVE
EXHAUST MANIFOLD
Unit: mm (in)
THERMOSTAT
SPARK PLUG
Unit: mm (in)
CYLINDER HEAD
Unit: mm (in) Engine typeMR18DE
Cylinder arrangementIn-line 4
Displacement
cm
3 (cu in)1,797 (109.65)
Bore and stroke mm (in) 84.0 x 81.1 (3.307 x 3.192)
Valve arrangementDOHC
Firing order1-3-4-2
Number of piston ringsCompression 2
Oil 1
Compression ratio9.9
Compression pressure
kPa (bar, kg/cm
2 , psi) / 250 rpmStandard 1,500 (15.0, 15.3, 217.6)
Minimum 1,200 (12.0, 12.2, 174)
Differential limit between cylinders 100 (1.0, 1.0, 15)
Tension of drive belt Auto adjustment by auto-tensioner
Valve opening temperature 93.5 - 96.5°C (200 - 206°F)
Maximum valve lift 8 mm/ 108°C (0.315 in/ 226°F)
Valve closing temperature More than 90°C (194°F)
Items Limit
Surface distortionEach exhaust port 0.3 (0.012)
Entire part 0.7 (0.028)
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Maximum valve lift 8 mm/ 95°C (0.315 in/ 203°F)
Valve closing temperature More than 77°C (171°F)
Plug typeIridium-tipped TYPE
MakeDENSO
Standard typeFXE20HR11
Spark plug gapNominal: 1.1 (0.043)
Items Standard Limit
Head surface distortion — 0.1 (0.004)