2003 NISSAN TEANA dimensions

PRECAUTIONS
EM-121
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EM

3. Attach liquid gasket tube to tube presser (SST).
Use Genuine Liquid Gasket or equivalent.
4. Apply liquid gasket without breaks to the specified location with
the specified dimensions.

If there is a groove for the liquid gasket application, apply liq-
uid gasket to the groove.

As for the bolt holes, normally apply liquid gasket inside the
holes. Occasionally, it should be applied outside the holes.
Make sure to read the text of this manual.

Within 5 minutes of liquid gasket application, install the mating
component.

If liquid gasket protrudes, wipe it off immediately.

Do not retighten mounting bolts or nuts after the installation.

After 30 minutes or more have passed from the installation, fill
engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe
them.
PBIC2160E
SEM159F

EM-124
[VQ]
PREPARATION

Commercial Service ToolsBBS004VJ
KV10114400
Heated oxygen sensor wrenchLoosening or tightening heated oxygen
sensor 2
a: 22 mm (0.87 in)
Quick connector release Removing fuel tube quick connectors in
engine room
(Available in SEC. 164 of PARTS CATALOG:
Part No. 16441 6N210) Tool number
Tool nameDescription
NT636
PBIC0198E
Tool number
Tool nameDescription
Manual lift table caddy Removing and installing engine
Cylinder head bolt wrench Loosening and tightening cylinder head bolt,
and used with angle wrench [SST:
KV10112100]
a: 13 (0.51) dia.
b: 12 (0.47)
c: 10 (0.39)
Unit: mm (in)
Spark plug wrench Removing and installing spark plug
Valve seat cutter set Finishing valve seat dimensions
Piston ring expander Removing and installing piston ring
ZZA1210D
NT583
NT047
NT048
NT030

EM-218
[VQ]
CYLINDER HEAD

c. Using drift, press-fit spark plug tube so that its height “H” is as
specified in the figure.
CAUTION:

When press-fitting, take care not to deform spark plug
tube.

After press-fitting, wipe off liquid gasket protruding onto
cylinder-head upper face.
11. Install spark plug with spark plug wrench (commercial service
tool).
Inspection After DisassemblyBBS004W9
VALVE DIMENSIONS

Check dimensions of each valve. For dimensions, refer to EM-
260, "Valve Dimensions" .

If dimensions are out of the standard, replace valve.
VALVE GUIDE CLEARANCE
Valve Stem Diameter
Measure diameter of valve stem with micrometer.
Valve Guide Inner Diameter
Measure inner diameter of valve guide with bore gauge.
Valve Guide Clearance
(Valve guide clearance) = (Valve guide inner diameter) – (Valve stem diameter)Standard press-fit height “H” :
: 38.1 - 39.1 mm (1.500 - 1.539 in)
PBIC2634E
SEM188A
Standard
Intake : 5.965 - 5.980 mm (0.2348 - 0.2354 in)
Exhaust : 5.955 - 5.970 mm (0.2344 - 0.2350 in)
SEM938C
Standard
Intake and Exhaust : 6.000 - 6.018 mm (0.2362 - 0.2369 in)
Valve guide clearance:
Standard
Intake : 0.020 - 0.053 mm (0.0008 - 0.0021 in)
Exhaust : 0.030 - 0.063 mm (0.0012 - 0.0025 in)
Limit
Intake : 0.08 mm (0.003 in)
Exhaust : 0.10 mm (0.004 in)

EM-220
[VQ]
CYLINDER HEAD

5. Using valve guide drift (commercial service tool), press valve
guide from camshaft side to the dimensions as in the figure.
CAUTION:
Cylinder head contains heat. When working, wear protec-
tive equipment to avoid getting burned.
6. Using valve guide reamer (commercial service tool), apply
reamer finish to valve guide.
VALVE SEAT CONTACT

After confirming that the dimensions of valve guides and valves
are within the specifications, perform this procedure.

Apply prussian blue (or white lead) onto contacting surface of
valve seat to check the condition of the valve contact on the sur-
face.

Check if the contact area band is continuous all around the cir-
cumference.

If not, grind to adjust valve fitting and check again. If the contact-
ing surface still has “NG” conditions even after the re-check,
replace valve seat. Refer to EM-220, "
VALVE SEAT REPLACE-
MENT" .
VALVE SEAT REPLACEMENT
When valve seat is removed, replace with oversized [0.5 mm (0.020 in)] valve seat.
1. Bore out old seat until it collapses. Boring should not continue beyond the bottom face of the seat recess
in cylinder head. Set the machine depth stop to ensure this. Refer to EM-262, "
Va l v e S e a t" .
CAUTION:
Prevent to scratch cylinder head by excessive boring.
2. Ream cylinder head recess diameter for service valve seat.

Be sure to ream in circles concentric to valve guide center.
This will enable valve to fit correctly.Projection “L”
Intake and exhaust
: 12.6 - 12.8 mm (0.496 - 0.504 in)
SEM950E
Standard:
Intake and exhaust
: 6.000 - 6.018 mm (0.2362 - 0.2369 in)
SEM932C
SBIA0322E
Oversize [0.5 mm (0.020 in)]
Intake
VQ23DE : 35.500 - 35.516 mm (1.3976 - 1.3983 in)
VQ35DE : 38.500 - 38.516 mm (1.5157 - 1.5164 in)
Exhaust
VQ23DE : 30.500 - 30.516 mm (1.2008 - 1.2014 in)
VQ35DE : 32.700 - 32.716 mm (1.2874 - 1.2880 in)
SEM795A

CYLINDER HEAD
EM-221
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EM

3. Heat cylinder head to 110 to 130°C (230 to 266°F) by soaking in
heated oil.
4. Provide valve seat cooled well with dry ice. press-fit valve seat into cylinder head.
CAUTION:

Avoid directly touching cold valve seats.

Cylinder head contains heat. When working, wear protective equipment to avoid getting burned.
5. Using valve seat cutter set (commercial service tool) or valve
seat grinder, finish seat to the specified dimensions. Refer to
EM-262, "
Valve Seat" .
CAUTION:
When using valve seat cutter, firmly grip the cutter handle
with both hands. Then, press on the contacting surface all
around the circumference to cut in a single drive. Improper
pressure on with cutter or cutting many different times may
result in stage valve seat.
6. Using compound, grind to adjust valve fitting.
7. Check again for normal contact. Refer to EM-220, "
VALVE SEAT CONTACT" .
VALVE SPRING SQUARENESS

Set try square along the side of valve spring and rotate spring.
Measure the maximum clearance between the top face of spring
and try square.

If it exceeds the limit, replace valve spring.
VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD

Check valve spring each load at specified spring height.
SEM008A
SEM934C
Limit
Intake
VQ23DE : 2.1 mm (0.083 in)
VQ35DE : 2.1 mm (0.083 in)
Exhaust
VQ23DE : 2.3 mm (0.091 in)
VQ35DE : 2.1 mm (0.083 in)
PBIC0080E
SEM113

CYLINDER BLOCK
EM-251
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EM

CRANKSHAFT PIN JOURNAL DIAMETER

Measure outer diameter of crankshaft pin journal with microme-
ter.

If out of the standard, measure the connecting rod bearing oil
clearance. Then use undersize bearing. Refer to EM-251,
"CONNECTING ROD BEARING OIL CLEARANCE" .
CRANKSHAFT OUT-OF-ROUND AND TAPER

Measure the dimensions at four different points as shown in the
figure on each main journal and pin journal with micrometer.

Out-of-round is indicated by the difference in the dimensions
between “X” and “Y” at “A” and “B”.

Taper is indicated by the difference in the dimensions 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-252, "
MAIN BEARING OIL CLEAR-
ANCE" and/or EM-251, "CONNECTING ROD BEARING OIL CLEARANCE" .
CRANKSHAFT RUNOUT

Place V-block on precise flat table, and support the journals on
the both end of crankshaft.

Place dial indicator straight up on the No. 3 journal.

While rotating crankshaft, read the movement of the pointer on
dial indicator. (Total indicator reading)

If it exceeds the limit, replace crankshaft.
CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation

Install connecting rod bearings to connecting rod and connect-
ing rod bearing cap, and tighten connecting rod nuts (VQ23DE)
or connecting rod bolts (VQ35DE) to the specified torque. Refer
to EM-233, "
ASSEMBLY" for the tightening procedure.

Measure the inner diameter of connecting rod bearing with
inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diameter) –
(Crankshaft pin journal diameter)Standard
VQ23DE : 44.956 - 44.974 mm (1.7699 - 1.7706 in) dia.
VQ35DE : 51.956 - 51.974 mm (2.0455 - 2.0462 in) dia.
PBIC0127E
Limit:
Out-of-round (Difference between “X” and “Y”)
: 0.002 mm (0.0001 in)
Taper (Difference between “A” and “B”)
: 0.002 mm (0.0001 in)
SBIA0535E
Standard : Less than 0.05 mm (0.002 in)
Limit : 0.1 mm (0.004 in)
SEM346D
PBIC1642E

CYLINDER BLOCK
EM-253
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EM


Remove main bearing caps and bearings, and using scale on
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”.
CRUSH HEIGHT OF MAIN BEARING

When main bearing cap is removed after being tightened to the
specified torque with main bearings installed, the tip end of bear-
ing must protrude. Refer to EM-233, "
ASSEMBLY" for the tight-
ening procedure.

If the standard is not met, replace main bearings.
CRUSH HEIGHT OF CONNECTING ROD BEARING

When connecting rod bearing cap is removed after being tight-
ened to the specified torque with connecting rod bearings
installed, the tip end of bearing must protrude. Refer to EM-233,
"ASSEMBLY" for the tightening procedure.

If the standard is not met, replace connecting rod bearings.
MAIN BEARING CAP BOLT OUTER DIAMETER

Measure outer diameters (“d1 ”, “d2 ”) at two positions as shown
in the figure.

If reduction appears in “A” range, regard it as “d2 ”.

If it exceeds the limit (large difference in dimensions), replace
main bearing cap bolt with new one.
CONNECTING ROD BOLT OUTER DIAMETER
VQ23DE

Install nut to connecting rod bolt, and make sure if the nut can smoothly tighten until the end of screw
thread by hands.
PBIC1149E
Standard : There must be crush height.
SEM502G
Standard : There must be crush height.
PBIC1646E
Limit (“d1 ” – “d2 ”) : 0.11 mm (0.0051 in)
PBIC0911E

EM-260
[VQ]
SERVICE DATA AND SPECIFICATIONS (SDS)

CYLINDER HEAD
Unit: mm (in)
Valve Dimensions
Unit: mm (in) Items Standard Limit
Head surface distortion 0.03 (0.0012) 0.1 (0.004)
Normal cylinder head height “H” 126.3 - 126.5 (4.972 - 4.980) —
PBIC0924E
Engine VQ23DE VQ35DE
Valve head diameter “D”Intake 34.0 - 34.3 (1.339 - 1.350) 37.0 - 37.3 (1.457 - 1.469)
Exhaust 29.0 - 29.3 (1.142 - 1.154) 31.2 - 31.5 (1.228 - 1.240)
Valve length “L”Intake 99.28 (3.909) 96.46 (37.99)
Exhaust 96.81 (38.11) 93.99 (37.00)
Valve stem diameter “d”Intake 5.965 - 5.980 (0.2348 - 0.2354)
Exhaust 5.955 - 5.970 (0.2344 - 0.2350)
Valve seat angle “α”Intake
45°15′ - 45°45′
Exhaust
Valve margin “T”Intake 1.1 (0.043)
Exhaust 1.3 (0.051)
Valve margin “T” wear limit 0.5 (0.020)
Valve stem end surface grinding limit 0.2 (0.008)
SEM188