CYLINDER HEADEM-81
< ON-VEHICLE REPAIR > [HR16DE]
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d. Using suitable tool or valve seat grinder, finish seat to the speci-
fied dimensions. Refer to EM-114, "
Cylinder Head".
CAUTION:
When using the valve seat cutter, firmly grip cutter handle
with both hands. Then, press on the contacting surface all
around the circumference to cu t in a single drive. Improper
pressure on with cutter or cu tting many different times may
result in stage valve seat.
e. Using compound, grind to adjust valve fitting.
f. Check again for normal contact. Refer to EM-76, "
Disassembly and Assembly".
3. Install valve oil seal. • Install with Tool (A) to match dimension as shown.
4. Install valve spring seat.
5. Install valve. • Install larger diameter to intake side.
6. Install valve spring. NOTE:
It can be installed in either direction.
7. Install valve spring retainer.
8. Install valve collet. • Compress valve spring with Tool (A). Install valve collet with amagnet hand (B).
CAUTION:
Be careful not to damage valve lifter holes.
• Tap valve stem edge lightly with a plastic hammer after instal-
lation to check its installed condition.
9. Install valve lifter.
10. Install spark plug with a suitable tool.
SEM934C
Height “H” : 13.2 - 13.8 mm (0.520 - 0.543 in)
Tool number : KV10115600 (J-38958)
PBIC3211J
Tool number : KV10116200 (J-26336-B) : KV10115900 (J-26336-20)
: KV10109220 ( — )
PBIC3727E
Revision: January 20102010 Versa
EM-102
< DISASSEMBLY AND ASSEMBLY >[HR16DE]
CYLINDER BLOCK
• Measure the outer diameter (Dp) of crankshaft pin journal with a
micrometer.
• If out of the standard, measure the connecting rod bearing oil clearance. Then use undersize bearing.
OUT-OF-ROUND AND TAPER OF CRANKSHAFT
• Measure the dimensions at four different points as shown on eachmain 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 lim it, correct or replace crankshaft.
• If corrected, measure the bearing oil clearance of t he corrected main journal and/or pin journal. Then select
main bearing and/or connecting rod bearing.
CRANKSHAFT RUNOUT
• Place a V-block on a precise flat table to support the journals on the both end of crankshaft.
• Place a dial indicator (A) straight up on the No. 3 journal.
• While rotating crankshaft, read t he movement of the pointer on the
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 cap, and tighten connecting rod bolts to the specified torque. Refer to EM-90, "
Disassembly and Assembly".
• Measure the inner diameter of connecting rod bearing with an inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diameter)
– (Crankshaft pin journal diameter)
• If the clearance exceeds the limit, select proper connecting rod bearing according to connecting rod big end diameter and crank-
shaft pin journal diameter to obtain the specified bearing oil clear-
ance. Refer to EM-106, "
Connecting Rod Bearing".
Method of Using Plastigage
Standard : Refer to EM-116, "Cylinder Block".
AEM028
Limit:
Out-of-round (Difference between“X”and“Y”)
Taper (Difference between“A”and“B”) : Refer to EM-116, "
Cylinder Block".PBIC3459J
Limit : Refer to EM-116, "Cylinder Block".
PBIC3458J
Standard and Limit
: Refer to EM-119, "
Connecting Rod Bearing".
PBIC1642E
Revision: January 20102010 Versa
EM-104
< DISASSEMBLY AND ASSEMBLY >[HR16DE]
CYLINDER BLOCK
• When main bearing cap is removed after being tightened to the
specified torque with main bearings installed, the tip end of bearing
must protrude. Refer to EM-90, "
Disassembly and Assembly".
• If the standard is not met, replace main bearings.
CONNECTING ROD BEARING CRUSH HEIGHT
• When connecting rod bearing cap is removed after being tightened to the specified torque with connecting rod bearings installed, the
tip end of bearing must protrude. Refer to EM-90, "
Disassembly
and Assembly".
• If the standard is not met, replace connecting rod bearings.
MAIN BEARING CAP BOLT OUTER DIAMETER
• Measure the outer diameters (“d1”, “d2”) at two positions as shown.
• If reduction appears in a position other than “d
2 ”, regard it as “d2”.
• If it exceeds the limit (a large difference in dimensions), replace main bearing cap bolt with a new one.
CONNECTING ROD CAP 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” falls below the limit (when it becomes thinner), replaceconnecting rod cap bolt with a new one.
FLYWHEEL DEFLECTION
Standard: There must be crush height.
SEM502G
Standard: There must be crush height.
PBIC1646E
Limit (“d1”–“d2”): 0.2 mm (0.008 in)
PBIC3768E
Limit: 7.75 mm (0.3051 in)
PBIC3769E
Revision: January 20102010 Versa
EM-106
< DISASSEMBLY AND ASSEMBLY >[HR16DE]
HOW TO SELECT PISTON AND BEARING
HOW TO SELECT PISTON AND BEARING
DescriptionINFOID:0000000005398084
• The identification grade stamped on each part is the
grade for the dimension measured in new condition.
This grade cannot apply to reused parts.
• For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the measurement with the values of each selection table.
• For details of the measurement method of each part, the reuse standar ds and the selection method of the
selective fitting parts, follow the procedures.
Connecting Rod BearingINFOID:0000000005398085
WHEN NEW CONNECTING ROD AND CRANKSHAFT ARE USED
1. Apply connecting rod big end diameter grade stamped (C) on connecting rod side face to the row in the “Connecting Rod
Bearing Selection Table”.
2. Apply crankshaft pin journal diameter grade stamped (B) on
crankshaft front side to the column in the “Connecting Rod Bear-
ing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Connecting Rod Bearing Selection Table”.
4. Apply the symbol obtained to the “Connecting Rod Bearing Grade Table” to select connecting rod bearing.
WHEN CONNECTING ROD AND CRANKSHAFT ARE REUSED
1. Measure the dimensions of the connecting rod big end diameter and crankshaft pin journal diameter indi-
vidually. Refer to EM-97, "
Inspection".
Selection points Selection parts Selection itemsSelection methods
Between cylinder block and
crankshaft Main bearingMain bearing grade (bearing
thickness) Determined by match of cylin-
der block bearing housing
grade (inner diameter of hous-
ing) and crankshaft journal
grade (outer diameter of jour-
nal)
Between crankshaft and con-
necting rod Connecting rod bearingConnecting rod bearing grade
(bearing thickness) Combining service grades for
connecting rod big end diame-
ter and crankshaft pin outer di-
ameter determine connecting
rod bearing selection.
A : Oil hole
B : Cylinder number
D : Front mark
PBIC3756E
A : Main journal diameter grade (No. 1 to 5 from left)
B : Crankshaft pin journal diameter grade (No. 1 to 4 from left)
PBIC3757E
Revision: January 20102010 Versa
EM-108
< DISASSEMBLY AND ASSEMBLY >[HR16DE]
HOW TO SELECT PISTON AND BEARING
In grinding crankshaft pin to u
se undersize bearings, keep the
fillet R (A) [0.8 - 1.2 mm (0.031 - 0.047 in)].
Main BearingINFOID:0000000005398086
HOW TO SELECT MAIN BEARING
When New Cylinder Block and Crankshaft Are Used
1. “Main Bearing Selection Table” rows correspond to main bearing housing grade on left side of cylinder block.
• If there is a corrected stamp mark (B) on cylinder block, use itas a correct reference.
2. Apply main journal diameter grade stamped on crankshaft front side to column in the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected ro w and column in the “Main Bearing Selection Table”.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing. NOTE:
Service part is available as a set of both upper and lower.
When Cylinder Block and Crankshaft Are Reused
1. Measure the dimensions of the cylinder block ma in bearing housing inner diameter and crankshaft main
journal diameter individually. Refer to EM-97, "
Inspection".
2. Apply the measured dimension to the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected ro w and column in the “Main Bearing Selection Table”.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing. Bearing undersize table:
Refer to EM-119, "
Connecting Rod Bearing".
PBIC3263J
A : Basic stamp mark
: Engine front
PBIC3760E
A : Main journal diameter grade (No. 1 to 5 from left)
B : Crankshaft pin journal diameter grade (No. 1 to 4 from left)
PBIC3757E
Revision: January 20102010 Versa
EM-114
< SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*: Always check with the Parts Department for the latest parts information
Cylinder HeadINFOID:0000000005398092
CYLINDER HEAD
Unit: mm (in)
VALVE DIMENSIONS
Unit: mm (in)
3.30 (0.1299)
330
3.32 (0.1307) 332
3.34 (0.1315) 334
3.36 (0.1323) 336
3.38 (0.1331) 338
3.40 (0.1339) 340
3.42 (0.1346) 342
3.44 (0.1354) 344
3.46 (0.1362) 346
3.48 (0.1370) 348
3.50 (0.1378) 350
Thickness mm (in)
Identification mark*
ItemsStandard Limit
Head surface distortion —0.1 (0.004)
Normal cylinder head height “H” 125.0 (4.92)—
PBIC0924E
Valve head diameter “D”Intake 31.0 - 31.3 (1.220 - 1.232)
Exhaust 25.3 - 25.6 (0.996 - 1.008)
Va l v e l e n g t h “ a ” Intake
101.65 (4.002)
Exhaust 102.46 (4.034)
PBIC3878E
Revision: January 20102010 Versa
EM-128
< SERVICE INFORMATION >[MR18DE]
PREPARATION
Commercial Service Tool
INFOID:0000000005398107
KV10109300
(—)
Pulley holder Removing and installing crankshaft pulley
K V 1 0 111 8 0 0
( — )
Valve guide drift Removing and installing valve guide
Tool number
(Kent-Moore No.)
Tool name
Description
NT628
PBIC4012E
(Kent-Moore No.)
Tool name
Description
Power tool Loosening bolts and nuts
Spark plug wrench Removing and installing spark plug
Valve seat cutter set Finishing valve seat dimensions
Piston ring expander Removing and installing piston ring
PBIC0190E
PBIC2982E
NT048
NT030
Revision: January 20102010 Versa
OIL PANEM-147
< SERVICE INFORMATION > [MR18DE]
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c. Press-fit the rear oil seal usi
ng a drift with outer diameter 115
mm (4.53 in) and inner diameter 90 mm (3.54 in) (A).
• Press-fit to the specified dimensions as shown.
CAUTION:
• Never touch the grease applied to the oil seal lip.
• Be careful not to damage the rear oil seal mounting part of oil pan (upper) and cylinder block or the crankshaft.
• Press-fit straight, making sure that rear oil seal does not curl or tilt.
NOTE:
The standard surface of the dimens ion is the rear end surface of
cylinder block.
6. Install oil pump. • Tighten bolts in numerical order as shown.
7. Install oil pump sprocket, oil pump drive chain and other related parts if removed.
8. Use a scraper (A) to remove old liquid gasket from mating sur- faces of oil pan (lower).
• Also remove old liquid gasket from mating surface of oil pan(upper).
• Remove old liquid gasket from the bolt holes and threads.
PBIC3951E
1 : Rear oil seal
A : Cylinder block rear end surface
1: Oil pump
2 : Oil pan (upper)
: Engine front
PBIC3952E
PBIC3532J
PBIC3953E
Revision: January 20102010 Versa