EM-84
< REMOVAL AND INSTALLATION >[HR16DE]
CYLINDER HEAD
5. Using a suitable tool finish valve seat to the specified dimen-
sions. For dimensions, refer to MA-11, "
Fluids and Lubricants".
CAUTION:
When using a valve seat cutter, firmly grip the cutter handle
with both hands. Then, pr ess the contacting surface evenly
around the valve seat to cut in a single attempt. Improper
pressure or cutting several times may result in wavy valve
seat.
6. Using compound, grind to adjust valve fitting.
7. Check again for normal contact. Refer to "VALVE SEAT CONTACT".
VALVE SPRING SQUARENESS
• Set a tri-square (A) along the side of valve spring and rotate spring. Measure the maximum clearance between the top of spring and
tri-square.
• If it exceeds the limit, replace valve spring.
VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD
• Check valve spring pressure with valve spring seat installed at the specified spring height.
CAUTION:
Do not remove valve spring seat from valve spring.
• If the installation load or load with valve open is out of the stan- dard, replace valve spring (with valve spring seat).
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels, incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants".
• Use procedure below to check for fuel leaks.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks
at connection points.
• Start engine. With engine speed increased, che ck again for fuel leaks at connection points.
• Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there are no l eaks of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
SEM934C
(B) : Contact
Limit : Refer to EM-119, "Cylinder head".
PBIC3219J
Standard : Refer to EM-119, "Cylinder head".
SEM113
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CYLINDER HEADEM-85
< REMOVAL AND INSTALLATION > [HR16DE]
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*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeaks Level
Engine oil LevelLeaks Level
Transmission/
transaxle fluid CVT Models
LeaksLevel/Leaks Leaks
M/T Models Level/Leaks LeaksLevel/Leaks
Other oils and fluids* LevelLeaks Level
Fuel LeaksLeaks Leaks
Exhaust gas —Leaks —
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ENGINE ASSEMBLYEM-87
< UNIT REMOVAL AND INSTALLATION > [HR16DE]
C
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CAUTION:
Check that the stud bolt (*2) is tigh
t at the specified torque before tightening the nut (*1) shown. [Stud
bolt (*2) may be loosened after loosening the nut (*1)]
Removal and InstallationINFOID:0000000012431732
WARNING:
• Position the vehicle on a flat and solid surface.
• Place chocks at front and back of rear wheels.
• Attach proper slingers and bolts described in PARTS CATALOG if engine is not already equipped.
CAUTION:
• Always be careful to work safely.
• Do not start working until exhaust system and coolant are cool enough.
• If items or work required are not covered by th e engine section, refer to the applicable sections.
• Always use the support poin t specified for lifting.
• Use either 2-pole lift type or separate type lift. If board-on type must be used, support the rear axle
jacking point with a transmission jack or similar to ol before starting work, in preparation for the
backward shift of center of gravity.
• For supporting points for lifting and j acking point at rear axle, refer to GI-29, "
2-Pole Lift".
NOTE:
• When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from
spilling.
1. Engine mounting (RH) stay 2. Engine mount (RH) stay 3. Engine mounting insulator (RH)
4. Rear engine mounting bracket 5. Rear torque rod 6. Engine mounting bracket (LH)
7. Mass damper 8. Engine mounting insulator (LH) 9. Engine mounting bracket (LH)
10. Engine mount bracket (LH) A. Front mark B. Transaxle (upper)
C. Transaxle (lower) D. M/T models
AWBIA1587ZZ
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EM-88
< UNIT REMOVAL AND INSTALLATION >[HR16DE]
ENGINE ASSEMBLY
• Remove the engine and the transaxle assembly from the vehicle downward. Separate the engine and the
transaxle.
REMOVAL
1. Release fuel pressure. Refer to EC-137, "Work Procedure".
2. Drain engine coolant from radiator. Refer to CO-8, "
Draining Engine Coolant".
CAUTION:
• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belts.
3. Remove the following parts: • Front wheels and tires (RH/LH). Refer to WT-48, "
Removal and Installation".
• Front fender protector (RH/LH). Refer to EXT-38, "
Exploded View".
• Drive belt. Refer to EM-16, "
Removal and Installation".
• Battery and battery tray. Refer to PG-70, "
Exploded View".
• Air duct (inlet), air duct, and air cleaner case assembly. Refer to EM-26, "
Removal and Installation".
• Radiator hose (upper and lower). Refer to CO-13, "
Exploded View".
• Exhaust front tube. Refer to EX-5, "
Exploded View".
4. Disconnect engine room harness connector at the ECM and CVT (if equipped). CAUTION:
Protect connectors against foreign materials during the operation by wrapping in a plastic bag.
5. Disconnect heater hoses. Refer to CO-13, "
Exploded View".
6. Disconnect fuel feed hose at engine side. Refer to EM-40, "
Exploded View".
7. Disconnect control linkage cable from transaxle. Refer to TM-20, "
Exploded View" (M/T models) and TM-
234, "Exploded View" (CVT models).
8. Disconnect clutch tube on transaxle side from clutch damper (M/T models). Refer to CL-15, "
Exploded
View".
9. Remove generator. Refer to CHG-29, "
Exploded View".
10. Disconnect vacuum hose at engine side.
11. Remove EVAP hoses at engine side.
12. Remove A/C compressor from the engine with the piping connected. Temporarily position the A/C com-
pressor on the vehicle side with a rope without placing a heavy load on the piping.
13. Remove ground cable at transaxle side.
14. Remove drive shafts (RH/LH). Refer to FAX-19, "
Removal and Installation".
15. Remove rear torque rod (1).
16. When engine can be hoisted, install engine slinger to cylinder head front left side (A) and rear right side (B) and support the
engine position with a suitable tool.
(2) : Rear engine mounting bracket
: Front
JSBIA0643ZZ
: Engine front
Slinger (A) bolts : 65 N·m (6.6 kg-m, 48 ft-lb)
Slinger (B) bolts : 25 N·m (2.6 kg-m, 18 ft-lb)
AWBIA1134GB
Revision: August 2015 2016 Versa Note
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EM-90
< UNIT REMOVAL AND INSTALLATION >[HR16DE]
ENGINE ASSEMBLY
• Before starting engine, check oil/fluid levels incl
uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants".
• Use procedure below to check for fuel leaks.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks
at connection points.
• Start engine. With engine speed increased, che ck again for fuel leaks at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there are no l eaks of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeaks Level
Engine oil LevelLeaks Level
Transmission/
transaxle fluid CVT Models
LeaksLevel/Leaks Leaks
M/T Models Level/Leaks LeaksLevel/Leaks
Other oils and fluids* LevelLeaks Level
Fuel LeaksLeaksLeaks
Exhaust gas —Leaks —
Revision: August 2015 2016 Versa Note
cardiagn.com
EM-92
< UNIT DISASSEMBLY AND ASSEMBLY >[HR16DE]
ENGINE UNIT
3. Drain engine coolant by removing water drain plug (1) from
inside of the engine.
Use Genuine Silicone RT V Sealant or equivalent. Refer to
GI-22, "
Recommended Chemical Products and Sealants".
DisassemblyINFOID:0000000012431734
1. Remove intake manifold. Refer to EM-28, "Exploded View".
2. Remove exhaust manifold. Refer to EM-31, "
Exploded View".
3. Remove oil pan (lower). Refer to EM-34, "
Exploded View".
4. Remove ignition coil, spark plug, and rocker cover. Refer to EM-48, "
Exploded View".
5. Remove fuel injector and fuel tube. Refer to EM-40, "
Exploded View".
6. Remove front cover and timing chain. Refer to EM-51, "
Exploded View".
7. Remove camshaft. Refer to EM-60, "
Exploded View".
8. Remove cylinder head. Refer to EM-76, "
Exploded View".
9. Remove water pump. Refer to CO-18, "
Exploded View".
AssemblyINFOID:0000000012431735
Assembly is in the reverse order of disassembly.
: Engine front
Water drain plug
tightening torque: Refer to
EM-93, "Exploded View".
AWBIA1607ZZ
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EM-96
< UNIT DISASSEMBLY AND ASSEMBLY >[HR16DE]
CYLINDER BLOCK
a. Loosen and remove bolts in several steps in reverse of the
numerical order as shown.
NOTE:
When removing or installing signal plate, use socket (size T40).
b. Remove the main bearing cap from the cylinder block while tapping lightly with a plastic hammer.
10. Remove crankshaft (2). CAUTION:
• Do not damage or deform signal plate (1) mounted on
crankshaft.
• When setting crankshaft on a flat floor surface, use a
block of wood to avoid interf erence between signal plate
and the floor surface.
• Do not remove signal plate unless it is necessary to do
so.
NOTE:
When removing or installing signal plate, use socket (size T40).
11. Pull rear oil seal out from rear end of crankshaft.
12. Remove main bearing (upper/lower) and thrust bear ings from cylinder block and main bearing caps.
CAUTION:
Identify original installation positions, and store the bearings without mixing them up.
13. Remove oil jets. CAUTION:
Insert the dowel pin of oil jet into the cylinde r block dowel pin hole to loosen the bolt.
ASSEMBLY
CAUTION:
Do not reuse O-rings.
1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to
remove any foreign material.
WARNING:
Use goggles to protect your eyes.
2. Install cylinder block plugs. • Apply liquid gasket to the thread of water drain plug (3).
Use Genuine Silicone RTV Seal ant, or equivalent. Refer to
GI-22, "
Recommended Chemical Products and Sealants".
CAUTION:
Do not reuse O-ring.
• Tighten each plug as specified below.
: Engine front
JPBIA4203ZZ
JPBIA4531ZZ
(2) : O-ring : Engine front
AWBIA1607ZZ
Part WasherTightening torque
(1) Yes54.0 N·m (5.5 kg-m, 40 ft-lb)
(3) No9.8 N·m (1.0 kg-m, 87 in-lb)
Revision: August 2015 2016 Versa Note
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EM-104
< UNIT DISASSEMBLY AND ASSEMBLY >[HR16DE]
CYLINDER BLOCK
• Install connecting rod cap (1) without connecting rod bearing
installed, and tightening connecting rod cap bolts to the specified
torque. Refer to EM-93, "
Exploded View".
• Measure the inner diameter (B) of connecting rod big end using suitable tool.
• 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 using suitable
tool (A).
Piston Pin Outer Diameter
Measure the outer diameter of piston pin using micrometer (A).
Connecting Rod Bushing Oil Clearance
(Connecting rod bushing oil clearance) = (Connecting rod bus hing inner diameter) – (Piston pin outer diame-
ter)
• If the measured value is out of the standard range, replace connecting rod assembly and/or piston and pis- ton pin assembly.
• If replacing piston and piston pin assembly. Refer to EM-121, "
Cylinder Block".
• If replacing connecting rod assembly. Refer to EM-125, "
Connecting 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 particles to enter engine oil or engine coolant passages.
(2) : Connecting rod
(A) : Example
(B) : Measuring direction of inner diameter
Standard : Refer to EM-121, "Cylinder Block".PBIC3269J
Inner diameter
(Standard) : Refer to
EM-121, "Cylinder
Block".
JPBIA0223ZZ
Outer diameter
(Standard) : Refer to
EM-121, "Cylinder
Block".
JPBIA0218ZZ
Oil clearance
(Standard and Limit) : Refer to
EM-121, "Cylinder Block".
Revision: August 2015 2016 Versa Note
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