EM-84
< REMOVAL AND INSTALLATION >[HR16DE]
ENGINE ASSEMBLY
2. Remove brake caliper assembly with piping connected fr
om steering knuckle. Temporarily secure it on the
vehicle side with a rope to avoid load on it. Refer to BR-25, "
Component".
3. Remove drive shafts (LH and RH) from steering knuckle. Refer to FA X - 9 , "
Removal and Installation (Left
Side)" and FAX-10, "Removal and Installation (Right Side)".
4. Remove exhaust front tube. Refer to EX-5, "
Component".
5. Remove rear torque rod (1). NOTE:
A/T models shown, M/T models similar.
6. Remove A/T cooler hoses from transmission (if equipped). NOTE:
Cap or plug opening(s) to prevent fluid from spilling.
7. Preparation for the separation work of transaxle is as follows: • Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to EM-42, "
Compo-
nent".
Removal
1. Install engine slinger to cylinder head front left side (A) and rear
right side (B) and support the engine with a hoist.
2. Lift with a hoist and secure the engine in appropriate position.
3. Use a suitable tool (A) to securely support bottom of the engine and the transaxle assembly and simultaneously adjust hoist ten-
sion.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
PBIC3737E
PBIC3738E
PBIC3223J
Revision: May 2010 2011 Versa
CYLINDER BLOCKEM-99
< DISASSEMBLY AND ASSEMBLY > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
• Check with a connecting rod aligner.
• If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BIG END DIAMETER
• Install connecting rod cap without connecting rod bearing installed, and tightening connecting rod bolts to
the specified torque. Refer to EM-90, "
Disassembly and Assembly".
• Measure the inner diameter of connecting rod big end with an
inside micrometer.
• If out of the standard, replace connecting rod assembly.
CONNECTING ROD SMALL END CLEARANCE
Connecting Rod Small End Inner Diameter
Measure the inner diameter of connecting rod small end with an
inside micrometer.
Piston Pin Outer Diameter
Limit : Refer to EM-116, "Cylinder Block".
PBIC2077E
Standard : Refer to EM-116, "Cylinder Block".
PBIC1641E
Standard : Refer to EM-116, "Cylinder Block".
PBIC0120E
Revision: May 2010 2011 Versa
EM-100
< DISASSEMBLY AND ASSEMBLY >[HR16DE]
CYLINDER BLOCK
Measure the outer diameter of piston pin with a micrometer.
Connecting Rod Small End Clearance
(Connecting rod small end clearance) = (Connecting rod sm
all end inner diameter) – (Piston pin outer diame-
ter)
• If the measured value is out of the standard, repl ace connecting rod assembly and/or piston and piston pin
assembly.
• If replacing connecting rod assembly, use "CONNECTING ROD BEARING OIL CLEARANCE" to select con-
necting rod bearing.
CYLINDER BLOCK TOP SURFACE DISTORTION
• Using a scraper, remove gasket on the cylinder block su rface, and also remove engine oil, scale, carbon, or
other contamination.
CAUTION:
Be careful not to allow gasket flakes to en ter 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 and a feeler
gauge.
• If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER
• Install main bearing cap without main bearings install ed, and tighten main bearing cap bolts to the specified
torque. Refer to EM-90, "
Disassembly and Assembly".
• Measure the position shown [5 mm (0.196 in) rearward from main bearing housing front side end surface) in the 2 directions as
shown. The smaller one is the measured value.
• If out of the standard, replace cylinder block and main bearing caps as an assembly.
NOTE:
These components cannot be replaced as a single unit, because they were processed together.
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore Inner Diameter
Standard : Refer to EM-116, "Cylinder Block".
PBIC0117E
Standard : Refer to EM-116, "Cylinder Block".
Limit : Refer to EM-116, "
Cylinder Block".
PBIC0121E
1 : Cylinder block
2 : Main bearing cap
: Engine front
Standard : Refer to EM-116, "Cylinder Block".
PBIC3879E
Revision: May 2010 2011 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: May 2010 2011 Versa
CYLINDER BLOCKEM-103
< DISASSEMBLY AND ASSEMBLY > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
• 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 c ap, and tighten connecting rod bolts to the specified
torque. Refer to EM-90, "
Disassembly and Assembly".
CAUTION:
Never rotate crankshaft.
• Remove connecting rod cap and bearing, and using the scale 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 to cylinder block and main bearing cap, and tighten main bearing cap bolts to the spec-ified torque. Refer to EM-90, "
Disassembly and Assembly".
• Measure the inner diameter of main bearing with a bore gauge.
(Bearing oil clearance) = (Main bearing inner diameter) – (Crank-
shaft main journal diameter)
• If the clearance exceeds the limit, select proper main bearing according to main bearing inner diameter and crankshaft main
journal diameter to obtain the specified bearing oil clearance.
Refer to EM-108, "
MainBearing".
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 spec-
ified torque. Refer to EM-90, "
Disassembly and Assembly".
CAUTION:
Never rotate crankshaft.
• Remove main bearing cap and bearings, and using the scale 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
PBIC1149E
Standard : Refer to EM-120, "Main Bearing".
PBIC1644E
PBIC1149E
Revision: May 2010 2011 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: May 2010 2011 Versa
PRECAUTIONSEM-123
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Precaution for Procedure without Cowl Top CoverINFOID:0000000005930985
When performing the procedure after removing cowl top cover, cover
the lower end of windshield.
Precaution for Drain CoolantINFOID:0000000005930986
• Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000005930987
• Before starting work, make sure no fire or spark producing items are in the work area.
• Release fuel pressure before disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and DisassemblyINFOID:0000000005930988
• When instructed to use special service tools, use the spec ified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.
• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or the equiva lent, if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specif ied, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000005930989
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000005930990
• Use torque wrench to tighten bolts or nuts to specification.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
• Replace with new gasket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust. Before assembly, oil sliding surfaces well.
• Release air within route after draining coolant.
• Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped). Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for leakage.
PIIB3706J
Revision: May 2010 2011 Versa
EM-124
< SERVICE INFORMATION >[MR18DE]
PRECAUTIONS
Parts Requiring Angular Tightening
INFOID:0000000005930991
• Use an angle wrench for the final tightening of the following engine parts:
- Cylinder head bolts
- Camshaft sprocket (INT)
- Main bearing cap bolts
- Connecting rod cap nuts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular tightening)
• Do not use a torque value for final tightening.
• The torque value for these parts are for a preliminary step.
• Ensure thread and seat surfaces are clean and coated with engine oil.
Precaution for Liquid GasketINFOID:0000000005930992
REMOVAL OF LIQUID GASKET SEALING
• After removing the bolts and nuts, separate the mating surface and remove the sealant using Tool.
CAUTION:
Be careful not to damage the mating surfaces.
• In areas where the cutter is difficult to use, use a plastic hammer to lightly tap (1) the cutter where the RTV Silicone Sealant is applied.
Use a plastic hammer to slide the cutter (2) by tapping on the side.
CAUTION:
If for some unavoidable reason a tool such as a flat-bladed
screwdriver is used, be careful not to damage the mating sur-
faces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old Silicone RTV Sealant adhering to the gasket application surface and the mating surface.
• Remove the sealant completely from the groove of the gasketapplication surface, bolts, and bolt holes.
2. Thoroughly clean the gasket application surface and the mating surface and remove adhering moisture, grease and foreign
materials.
3. Attach the sealant tube to the tube presser. Use Genuine Silicone RTV Sealant or equivalent. Refer to
GI-42, "
Recommended Chemical Product and Sealant".
4. Apply the sealant without breaks to the specified location using Tool.
• If there is a groove for the s ealant application, apply the seal-
ant to the groove.
• As for the bolt holes, normally apply the sealant inside the holes. If specified, it should be applied outside the holes. Make
sure to read the text of this manual.
• Within five minutes of the seal ant application, install the mat-
ing component.
• If the sealant protrudes, wipe it off immediately.
• Do not retighten after the installation. Tool number : KV10112100 (BT-8653-A)
Tool number : KV10111100 (J-37228)
WBIA0566E
PBIC0003E
Tool number WS39930000 ( – )
WBIA0567E
Revision: May 2010
2011 Versa