Page 1705 of 2267
23. Remove center member fixing bolts from chassis.
24. Remove engine with transaxle as shown.
SEM538D
.SEM247D
ENGINE REMOVALCD20T
EM-165
Page 1706 of 2267
Components
p1Piston ring
p2Piston
p3Piston pin
p4Connecting rod bearing
p5Connecting rod
p6Main bearing cap
p7Rear plate
p8Flywheel
p9Rear oil seal
p10Rear oil seal retainer
p11Gusset
p12Cylinder block
p13Main bearing
p14Crankshaft
p15Main bearing
p16Gusset
p17Drain plug
p18Pilot bushing
p19Plate
p20Oil jet
NEM376 54-74
(5.5 - 7.5,
40 - 54)
83-93
(8.5 - 9.5,
61 - 69)
69 - 78 (7.0 - 8.0, 51 - 58)
8.4 - 11.0 (0.86 - 1.12, 74.35 - 97.36)
30 - 40 (3.1 - 4.1, 22 - 30)
Refer to
ªAssemblyº
: Do not re-use.
: N´m (kg-m, in-lb)
îî
: N´m (kg-m, ft-lb)
î
: Lubricate with new engine oil.
SEC. 110×120
30 - 40 (3.1 - 4.1, 22 - 30)
30 - 40 (3.1 - 4.1, 266 - 354)
30-40
(3.1 - 4.1, 22 - 30)
16 - 21 (1.6 - 2.1, 12 - 15)
16 - 21 (1.6 - 2.1, 12 - 15)
CYLINDER BLOCKCD20T
Components
EM-166
Page 1707 of 2267
Preparation
IDrill a hole into the attachment (KV10108101).
Disassembly
PISTON AND CRANKSHAFT
1. Place engine on a work stand.
2. Drain coolant and oil.
3. Remove timing belt.
4. Remove water pump.
5. Remove oil pan and oil pump.
6. Remove cylinder head.
7. Remove pistons with connecting rods.
When disassembling piston and connecting rod, heat piston
to 60 to 70ÉC (140 to 158ÉF) or use piston pin press stand at
room temperature.
8. Remove main bearing cap and crankshaft.
Place the bearings and caps in their proper order.
Upper bearings (cylinder block side) have oil groove.
9. Remove piston rings with a tool.
SEM707D
SEM895
SEM360D Piston with connecting rod
Heater
SEM359F Engine front
Loosen in numerical order
SEM291
CYLINDER BLOCKCD20T
Preparation
EM-167
Page 1708 of 2267
Inspection
PISTON AND PISTON PIN CLEARANCE
1. Measure outer diameter of piston pin and inner diameter of
piston pin hole.
2. Calculate piston to piston pin clearance.
Pin diameter:
27.994 - 28.000 mm (1.1021 - 1.1024 in)
Pin hole diameter:
27.991 - 27.999 mm (1.1020 - 1.1023 in)
Clearance:
þ0.004 to 0 mm (þ0.0002 to 0 in)
(Interference fit)
Service parts are available as a set of piston and piston pin.
PISTON RING SIDE CLEARANCE
Side clearance:
Unit: mm (in)
Standard Limit
Top ring0.020 - 0.040
(0.0008 - 0.0016)0.10 (0.0039)
2nd ring0.050 - 0.085
(0.0020 - 0.0033)0.10 (0.0039)
Oil ring0.030 - 0.070
(0.0012 - 0.0028)0.10 (0.0039)
If out of specification, replace piston and/or piston ring assembly.
SEM024AA NG
OK Feeler
gauge
Feeler gauge
Ring
CYLINDER BLOCKCD20T
Inspection
EM-168
Page 1709 of 2267

PISTON RING END GAP
End gap:
Unit: mm (in)
Standard Limit
Top ringBore grade 1, 2, 3
0.22 - 0.32 (0.0087 - 0.0126)
Bore grade 4, 5
0.12 - 0.22 (0.0047 - 0.0087)1.0 (0.039)
2nd ring 0.38 - 0.53 (0.0150 - 0.0209) 0.7 (0.028)
Oil ring 0.30 - 0.55 (0.0118 - 0.0217) 0.6 (0.024)
IIf out of specification, replace piston ring. If gap exceeds maxi-
mum limit with new ring, rebore cylinder and use oversize pis-
ton and piston rings.
Refer to SDS (EM-199).
IWhen replacing the piston, check the cylinder block surface for
scratches or evidence of seizure. If scratches or evidence of
seizure is found, hone or replace the cylinder block.
MAIN BEARING CLEARANCE
1. Install main bearings to cylinder block and main bearing cap.
2. Install main bearing cap with bearing to cylinder block.
Tighten all bolts in two or three stages.
: 69 - 78 N´m (7.0 - 8.0 kg-m, 51 - 58 ft-lb)
3. Measure inside diameter ªAº of main journal.
4. Measure outside diameter ªDmº of main journal of crankshaft.
Journal diameter:
Refer to SDS (EM-199).
5. Calculate main bearing clearance.
Main bearing clearance = A þ Dm
Standard:
0.039 - 0.065 mm (0.0015 - 0.0026 in)
IIf it exceeds the limit, replace the bearing.
SEM599A Piston
Press-fit
RingFeeler
gauge
Ring
SEM360F
SEM506A
CYLINDER BLOCKCD20T
Inspection (Cont'd)
EM-169
Page 1710 of 2267

IIf crankshaft main journal is worn or shows any abnormality,
regrind crank journal and use undersized bearings to maintain
the specified oil clearance.
IRefer to SDS for regrinding crankshaft journal diameter
and available service parts (EM-200).
IWhen regrinding crankshaft journal, do not grind fillet-roll.
IIf either bearing, crankshaft or cylinder block is replaced with
a new one, select main bearing according to the following
table. These numbers are punched in either Arabic or Roman
numerals.
Main bearing housing grade number
012
Main bearing grade number
Crankshaft main journal
grade number0012
1123
2234
Identification color:
Grade 0 Yellow
Grade 1 Green
Grade 2 Brown
Grade 3 Black
Grade 4 Blue
For example:
Main journal grade number: 1
Crankshaft journal grade number: 2
Main bearing grade number=1+2=3
Main bearing thickness:
Refer to SDS (EM-200).
CONNECTING ROD BEARING CLEARANCE (Big end)
1. Install connecting rod bearing to connecting rod and cap.
2. Install connecting rod cap with bearing to connecting rod.
Apply oil to the threaded portion of bolts and seating surface
of nuts.
: 37 - 45 N´m (3.8 - 4.6 kg-m, 27 - 33 ft-lb)
3. Measure inside diameter ªCº of bearing.
SEM566B Counter weight
Main journal
.Maintain more than 0.13 mm (0.0051 in)
SEM706DA
SEM706A
AEM027 Inside micrometer
CYLINDER BLOCKCD20T
Inspection (Cont'd)
EM-170
Page 1711 of 2267

4. Measure outside diameter ªDpº of crankshaft pin journal.
5. Calculate connecting rod bearing clearance.
Connecting rod bearing clearance = CþDp
Standard:
0.031 - 0.055 mm (0.0012 - 0.0022 in)
IIf it exceeds the limit, replace the bearing.
IIf crankshaft pin journal is worn or shows any abnormality,
regrind crank pin and use undersized bearings to maintain the
specified oil clearance.
IRefer to SDS for regrinding diameter of crankshaft pin and
available service parts (EM-200).
IWhen regrinding crankshaft pin, do not grind fillet-roll.
Selective connecting rod bearing
IIf either bearings or crankshaft are being replaced with new
ones, select connecting rod bearings according to the follow-
ing table. Grade numbers are punched in either Arabic or
Roman numerals.
Crankshaft pin journal grade number
012
Connecting rod bearing grade
number012
Identification color
Grade 0: Black
Grade 1: Yellow
Grade 2: Blue
CONNECTING ROD AND PISTON PIN CLEARANCE
(Small end)
Clearance (D þ d):
0.025 - 0.044 mm (0.0010 - 0.0017 in)
IIf clearance exceeds the specifications, replace the bearing.
SEM361D Counter weight
Pin journal
.Maintain more than 0.13 mm (0.051 in)
SEM705D
SEM575B Clearance=Dþd
CYLINDER BLOCKCD20T
Inspection (Cont'd)
EM-171
Page 1712 of 2267
Bearing replacement
IRemove bearing with a suitable tool.
Do not scratch inner surface of connecting rod.
1. Install new bearing with oil holes aligned correctly.
2. Ream bore using a suitable tool.
Ream bore:
28.025 - 28.038 mm (1.1033 - 1.1039 in)
CONNECTING ROD BEND AND TORSION
Bend and torsion [per 100 mm (3.94 in) length]:
Bend Less than 0.025 mm (0.0010 in)
Torsion Less than 0.025 mm (0.0010 in)
CRANKSHAFT
1. Check crankshaft journals and pins for score, bias, wear or
cracks. If faults are minor, correct with fine emery paper.
2. Check journals and pins with a micrometer for taper and out-
of-round.
Out-of-round (XþY):
Less than 0.005 mm (0.0002 in)
Taper (AþB):
Less than 0.005 mm (0.0002 in)
3. Check crankshaft runout.
Runout (Total indicator reading):
Less than 0.05 mm (0.0020 in)
SEM906
SEM907
EM133
SEM316A Taper:
Out-of-round:
.SEM601A
CYLINDER BLOCKCD20T
Inspection (Cont'd)
EM-172