Downloaded from www.Manualslib.com manuals search engine 1D-19 Engine Mechanical:
24) Before removing engine with transaxle from engine compartment, recheck to make sure all hoses,
electric wires and cables are disconnected from
engine and transaxle.
25) Lower engine with transaxle from engine compartment.
CAUTION!
Before lowering engine, to avoid damage to
A/C compressor and clutch operating
cylinder, make clearance by rising them. Be
sure not to damage suspended A/C
compressor and clutch operating cylinder.
26) Disconnect transaxle from engine, referring to “Manual Transaxle Unit Dismounting and
Remounting in Section 5B” or “Automatic Transaxle
Unit Dismounting and Re mounting in Section 5A”.
27) For M/T model, remove clutch cover and clutch disk referring to “Clutch Cover, Clutch Disc and Flywheel
Removal and Installa tion in Section 5C”.
Installation 1) For M/T model, install clutch cover and clutch disk referring to “Clutch Cover, Clutch Disc and Flywheel
Removal and Installa tion in Section 5C”.
2) Connect transaxle to engine referring to “Manual Transaxle Unit Dismounting and Remounting in
Section 5B” or “Automatic Transaxle Unit
Dismounting and Remounting in Section 5A”.
3) Lift engine and transaxle into engine compartment with jack.
4) Install engine left mounting bracket nuts (1) and engine right mounting nuts (2).Tighten these nuts to
specified torque.
Tightening torque
Engine left mounting bracket nut (a): 55 N·m (5.5
kgf-m, 40.0 lb-ft)
Engine right mounting nut (b): 65 N·m (6.5 kgf-
m, 47.0 lb-ft) 5) Support engine assemble by using chain hoist.
6) Install engine rear mounting to engine rear
mountingNo.1 bracket.
Tightening torque
Engine rear mounting bush bolt: 55 N·m (5.5
kgf-m, 40.0 lb-ft)
7) Install suspension frame referring to “Front Suspension Frame, Stabiliz er Bar and/or Bushings
Removal and Installati on in Section 2B”.
8) Remove chain hoist.
9) Install exhaust No.1, No.2 and center pipes referring to “Exhaust Pipe and Muffler Removal and
Installation in Section 1K”.
10) Connect drive shaft joints referring to “Front Drive Shaft Assembly Removal and Installation in Section
3A”.
11) Reverse disconnected hoses, cables and electric wires for connection noting the followings.
• Tighten nuts to specified torque.
Tightening torque
Starting motor terminal nut: 11 N·m (1.1 kgf-m,
8.0 lb-ft)
Generator terminal nut: 6 N·m (0.6 kgf-m, 4.5 lb-
ft)
Intake manifold ground terminal bolt: 11 N·m (
1.1 kgf-m, 18.0 lb-ft)
12) Install intake manifold rear stiffener to intake
manifold and cylinder block.
13) Install air cleaner assembly referring to “Air Cleaner Components”.
14) Install cowl top referring to “Cowl Top Components in
Section 9K”.
I4RS0A140009-01
1, (a)
2, (b)
I4RS0A140010-01
Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-46
Pistons, Piston Rings, Connecting Rods and
Cylinders Disassembly and Assembly
S7RS0B1406031
Disassembly1) Using piston ring expander, remove two compression rings (Top and 2nd) and oil ring from
piston.
2) Remove piston pin from connecting rod as follows. a) Ease out piston pin circlip (1), as shown.
b) Force piston pin out.
Assembly 1) Decarbonize piston head and ring grooves using a suitable tool.
2) Install piston pin to piston (1) and connecting rod (2): a) After applying engine oil to piston pin and piston pin holes in piston and connecting rod.
b) Fit connecting rod as shown in figure.
NOTE
Be sure to position front mark or arrow mark
(4) on piston and oil hole (5) of connecting
rod at specified position as shown in figure.
c) Insert piston pin to piston and connecting rod.
d) Install piston pin circlips (3).
NOTE
Circlip should be installed with its cut part
facing as shown in figure. Install so that
circlip end gap comes within such range as
indicated by arrow.
3) Install piston rings to piston:
• As indicated in the figure, 1st and 2nd rings have discrimination mark (4) respectively. When
installing these piston rings to piston, direct
marked side of each ring toward top of piston.
• 1st ring (1) differs from 2nd ring (2) in thickness, shape and color of surface contacting cylinder
wall.
Distinguish 1st ring from 2nd ring by referring to
the figure.
• When installing oil ring (3), install spacer first and then two rails.
4) After installing three rings (1st, 2nd and oil rings), distribute their end gaps as shown in figure.
I2RH0B140113-01
I2RH0B140114-01
1. 1st ring end gap 3. Oil ring upper rail gap
2. 2nd ring end gap and oil ring spacer gap 4. Oil ring lower rail gap
I6RS0C140022-01
I6RS0C140023-01
I6RS0B141018-01
Downloaded from www.Manualslib.com manuals search engine 1D-59 Engine Mechanical:
Main Bearings InspectionS7RS0B1406038
General Information
• Service main bearings are available in standard size and 0.25 mm (0.0098 in.) undersize, and each of them
has 5 kinds of bearings differing in tolerance.
• Upper half of bearing (1) has oil groove (2) as shown in figure.
Install this half with o il groove to cylinder block.
• Lower half of bearing does not have an oil groove.
Visual Inspection
Check bearings for pitting, scratches, wear or damage.
If any malcondition is foun d, replace both upper and
lower halves. Never replace either half without replacing
the other half.
Main Bearing Clearance
NOTE
Do not rotate crankshaft while gauging
plastic is installed.
Check clearance by using ga uging plastic according to
the following procedure.
1) Remove bearing caps.
2) Clean bearings and main journals.
3) Place a piece of gauging plastic (1) the full width of bearing (parallel to crankshaft) on journal, avoiding
oil hole. 4) Tighten main bearing cap No.1 bolts (a) and main
bearing cap No.2 bolts (b) gradually as follows.
a) Tighten bolts (“1” through “10”) to 30 N ⋅m (3.0
kgf-m, 22.0 lb-ft) according to numerical order in
the figure.
b) In the same manner as in Step a), tighten them to 50 N ⋅m (5.0 kgf-m, 36.5 lb-ft).
c) In the same manner as in Step a), retighten them to 60 °.
d) Tighten bolts (“11” through “18”) to 25 N ⋅m (2.5
kgf-m, 18.0 lb-ft) according to numerical order in
the figure.
Tightening torque
Main bearing cap No.1 bolt (a): 30 Nm (3.0
kgf-m, 22.0 lb-ft), 50 Nm (5.0 kgf-m, 36.5 lb-ft)
and then retighten by turning through 60°
Main bearing cap No.2 bolt (b): 25 N·m (2.5
kgf-m, 18.0 lb-ft)
5) Remove bearing caps and using scale (1) on gauging plastic envelop (2), measure gauging plastic
width at its widest point. If clearance exceeds its
limit, replace bearing. Always replace both upper
and lower inserts as a unit.
A new standard bearing may produce proper
clearance. If not, it will be necessary to regrind
crankshaft journal for use of 0.25 mm undersize
bearing.
After selecting new bearing, recheck clearance.
Main bearing clearance
Standard: 0.021 – 0.041 mm (0.0008 – 0.0016 in.)
Limit: 0.054 mm (0.0021 in.)
I2RH0B140139-01
I2RH0B140140-01
I6RS0C140027-01
I2RH0B140141-01
Downloaded from www.Manualslib.com manuals search engine Engine Lubrication System: 1E-1
Engine
Engine Lubrication System
General Description
Engine Lubrication DescriptionS7RS0B1501001
The oil pump is of a trochoid type, and mounted on the
crankshaft. Oil is drawn up through the oil pump strainer
and passed through the pump to the oil filter.
The filtered oil flows into two paths in cylinder block.
The filtered oil is passed to the passage in heat
exchanger and cylinder block to piston cooling valve of
oil gushed to the lower side of piston. In one path, oil reaches the crankshaft journal bearings.
Oil from the crankshaft journal bearings is supplied to
the connecting rod bearings by means of intersecting
passages drilled in the cran
kshaft, and then injected
from the big end of connecting rod to lubricate piston,
rings and cylinder wall.
In the other path oil goes up to the cylinder head and
lubricates valves and camshafts, etc., after passing
through the internal oil way of camshafts.
An oil relief valve is provided on the oil pump. This valve
starts relieving oil pressure when the pressure exceeds
about 350 kPa (3.5 kg/cm
2, 49.8 psi).
I6RS0C150001-01
Downloaded from www.Manualslib.com manuals search engine Engine Lubrication System: 1E-5
Oil Pan and Oil Pump Strainer ComponentsS7RS0B1506004
Oil Pan and Oil Pump Strainer Removal and
Installation
S7RS0B1506005
Removal1) Remove oil level gauge.
2) Drain engine oil by removing drain plug.
3) Remove exhaust No.1 pipe (1), exhaust manifold stiffener (2) and heated oxygen sensor No.2
(connector color: green) (3) referring to “Exhaust
System Components in Section 1K”. 4) Remove clutch housing lower plate (1).
5) Remove oil pan and then oil pump strainer (1) from
cylinder block.
I4RS0A150002-01
1. Oil pan : Apply sealant 99000-31260 to mating surface. 6. Strainer bolt 11. Transaxle stiffener bolt
2. Strainer 7. Bracket bolt : 35 N ⋅m (3.5 kgf-m, 25.5 lb-ft)
3. O-ring 8. Oil pan nut : Tighten 11 N ⋅m (1.1 kgf-m, 8.0 lb-ft) by the specified
procedure.
4. Gasket 9. Oil pan bolt (M6) : 55 N ⋅m (5.5 kgf-m, 40.0 lb-ft)
5. Drain plug 10. Oil pan bolt (M10) : Do not reuse.
2
1
3
I4RS0A150003-01
1I4RS0A150004-01
I2RH0B150010-01
Downloaded from www.Manualslib.com manuals search engine Engine Lubrication System: 1E-7
6) After fitting oil pan to cylinder block, run in securing bolts and start tightening at the center: move wrench
outward, tightening one bolt at a time. Tighten bolts
and nuts to specified torque.
Tightening torque
Oil pan bolt (M6) (a): 11 N·m (1.1 kgf-m, 8.0 lb-ft)
Oil pan bolt (M10) (c): 55 N·m (5.5 kgf-m, 40.0 lb-
ft)
Oil pan nut (e): 11 N·m (1.1 kgf-m, 8.0 lb-ft)
7) Install new gasket and drain plug to oil pan. Tighten drain plug to specified torque.
Tightening torque
Oil pan drain plug (b): 35 N·m (3.5 kgf-m, 25.5 lb-
ft)
8) Tighten transaxle stiffener bolts to specified torque. Tightening torque
Transaxle stiffener bolt (d): 55 N·m (5.5 kgf-m,
40.0 lb-ft)
9) Install exhaust manifold stiffener (2) and exhaust No.1 pipe (1) and heated oxygen sensor No.2
(connector color: green) (3) referring to “Exhaust
System Components in Section 1K”. 10) Install clutch housing lower plate (1).
11) Install oil level gauge.
12) Refill engine with engine oil referring to “Engine Oil
and Filter Change in Section 0B”.
13) Verify that there is no en gine oil leakage and exhaust
gas leakage at each connection.
Oil Pan and Oil Pump Strainer CleaningS7RS0B1506006
• Clean sealing surface between oil pan and cylinder block.
Remove oil, old sealant, and dust from sealing
surface.
• Clean oil pump strainer screen (1).(a)
(b)
(c)(e)
(d)I4RS0A150008-01
2
1
3
I4RS0A150003-01
1I4RS0A150004-01
I2RH0B150016-01
Downloaded from www.Manualslib.com manuals search engine 1E-10 Engine Lubrication System:
Radial clearance
Check radial clearance between outer rotor (1) and case
(2) using thickness gauge (3).
If clearance exceeds its limit, replace outer rotor or case.
Radial clearance between outer rotor and case for oil
pump
Limit: 0.310 mm (0.0122 in.)
Side clearance
Using straightedge (1) and thickness gauge (2),
measure side clearance.
If side clearance exceeds its limit, replace oil pump
assembly.
Side clearance for oil pump inner rotor
Limit: 0.15 mm (0.0059 in.)Relief valve spring free length and load
Check relief valve spring free length and load as shown
in the figure. If the measured valve spring length is lower
than the specification, replace relief valve spring.
Relief valve spring free length and load
I2RH0B150026-01
I2RH0B150027-01
Standard Limit
Free length 52.4 mm
(2.06 in.) —
Load at spring length
38.5 mm (1.52 in.) 79 N
(7.9 kgf, 17.5 lb) 69 N
(6.9 kgf, 15.0 lb)
I2RH01150023-01
Downloaded from www.Manualslib.com manuals search engine 1F-1 Engine Cooling System:
Engine
Engine Cooling System
General Description
Cooling System DescriptionS7RS0B1601001
The cooling system consists of the radiator cap, radiator, coolant reservoir, hoses, water pump, cooling fan and
thermostat. The radiator is of tube-and-fin type.
Coolant DescriptionS7RS0B1601002
WARNING!
• Do not remove radiator cap to check engine coolant level; check coolant visually at the see-through coolant reservoir. Coolant should be added only to reservoir as necessary.
• As long as there is pressure in the cooling system, the temperature can be considerably higher than the boiling temperature of the solution in the radiator without causing the solution to boil. Removal
of the radiator cap while engine is hot and pressure is high will cause the solution to boil
instantaneously and possibly with explosive force, spewing the solution over engine, fenders and
person removing cap. If the solution contains flammable anti-freeze such as alcohol (not
recommended for use at any time), there is also the possibility of causing a serious fire.
• Check to make sure that engine coolant temperature is cold before removing any part of cooling system.
• Also be sure to disconnect negative cable from battery terminal before removing any part.
The coolant recovery system is standard. The coolant in the radiator expands with heat, and the coolant is overflowed
to the reservoir.
When the system cools down, the coolant is drawn back into the radiator.
The cooling system has be en filled with a quality coolant that is a 50/50 mixture of water and ethylene glycol
antifreeze.
This 50/50 mixture coolant solution provides freezing protection to –36 °C (–33 °F).
• Maintain cooling system freeze protection at –36 °C (–33 °F) to ensure protection against corrosion and loss of
coolant from boiling. This should be done even if freezing temperatures are not expected.
• Add ethylene glycol base coolant when coolant has to be added because of coolant loss or to provide added protection against freezing at temperature lower than –36 °C (–33 °F).
NOTE
• Alcohol or methanol base coolant or plain water alone should not be used in cooling system at any
time as damage to cooling system could occur.
• Coolant must be mixed with deminerated water or distilled water.
Anti-freeze proportioning table
For M/T model For A/T model
Freezing temperature °
C –36 –36
° F –33 –33
Anti-freeze / Anti-corrosion coolant concentration % 50 50
Ratio of compound to cooling water ltr. 3.10/3.10 3.05/3.05
US pt. 6.55/6.55 6.44/6.44
Imp pt. 5.46/5.46 5.37/5.37