Page 1249 of 1767
TIMING GEAR CASE
Installation
1. Before installing timing gear case, remove all traces of liquid
gasket from mating surface using a scraper.
Also remove traces of liquid gasket from mating surface of front
plate.
2. Apply a continuous bead of liquid gasket to mating surface of
timing gear case and install the two rubber seals as shown.
IBe sure liquid gasket is 2.5 to 3.5 mm (0.098 to 0.138 in)
wide.
IAttach timing gear case to front plate within 20 minutes
after coating.
IWait at least 30 minutes before refilling engine coolant or
starting engine.
Iuse Genuine Liquid Gasket or equivalent.
NEM183
NEM184
NEM185
SEM683B
ENGINE OVERHAULTD27Ti
Assembly (Cont'd)
EM-141
Page 1250 of 1767
REAR PLATE
Installation
1. Before installing rear plate, remove all traces of liquid gasket
from mating surface using a scraper.
Also remove traces of liquid gasket from mating surface of cyl-
inder block.
2. Apply a continuous bead of liquid gasket to mating surface of
cylinder block.
3. Fit the rear plate into the cylinder block and apply liquid gasket
in the area indicated by discontinuous line.
4. After the transmission is installed, apply liquid gasket in the
area indicated by arrows.
5. Install all removed parts.
EEM109
EEM110
ENGINE OVERHAULTD27Ti
Assembly (Cont'd)
EM-142
Page 1251 of 1767
General Specifications
Engine model TD27Ti
Cylinder arrangement 4, in-line
Displacement cm
3(cu in) 2,663 (162.5)
Bore x stroke mm (in) 96 x 92 (3.8 x 3.6)
Valve arrangement OHV
Firing order 1-3-4-2
Number of piston rings
Compression 2
Oil 1
Number of main bearings 5
Compression ratio 21.9 0.2
Unit: kPa (bar, kg/cm
2, psi)/rpm
Compression pressure
Standard 2,942 (29.4, 30, 427)/200
Minimum 2,452 (24.5, 25, 356)/200
Differential limit between
cylinders294 (2.9, 3, 43)/200
SERVICE DATA AND SPECIFICATIONS (SDS)TD27Ti
EM-143
Page 1252 of 1767
Inspection and Adjustment
CYLINDER BLOCK AND CYLINDER LINER
Unit: mm (in)
NEM227
Nominal cylinder block height (H) (From
crankshaft center)549.5 - 550.5
(21.6 - 21.7)
Cylinder bore
Inner diameter
Standard
Grade No. 196.000 - 96.010
(3.7795 - 3.7799)
Grade No. 296.010 - 96.020
(3.7799 - 3.7803)
Grade No. 396.020 - 96.030
(3.7803 - 3.7807)
Wear limit 0.20 (0.0079)
Out-of-round (X þ Y) Less than 0.020 (0.0008)
Taper (A þ B) Less than 0.20 (0.0079)
Division of each cylinder Less than 0.05 (0.0020)
SERVICE DATA AND SPECIFICATIONS (SDS)TD27Ti
EM-144
Page 1253 of 1767

VALVE GUIDE
Unit: mm (in)
Standard Service
Valve guide outside
diameter12.033 - 12.044
(0.4737 - 0.4742)Ð
Valve guide inner diam-
eter (Finished size)8.00 - 8.015 (0.3150 - 0.3156)
Cylinder head valve
guide hole diameter12.00 - 12.011
(0.4724 - 0.4729)Ð
Interference fit of valve
guide0.022 - 0.044 (0.0009 - 0.0017)
Standard Limit
Valve to guide clearance
Intake0.020 - 0.050
(0.0008 - 0.0020)0.15 (0.0059)
Exhaust0.04 - 0.07
(0.0016 - 0.0028)0.20 (0.0079)
Valve deflection limit
Intake 0.30 (0.0118)
Exhaust 0.40 (0.0157)
VA LV E S E AT
Unit: mm (in)
SEM953C
Intake
Outer diameter ªD
1º44.535 - 44.545
(1.7533 - 1.7537)
Inner diameter ªD
2º38 0.1
(1.50 0.0039)
Diameter of seat ªD
3º42.4 - 42.6
(1.669 - 1.677)
Cylinder head valve seat diam-
eter44.500 - 44.515
(1.7520 - 1.7526)
Valve seat face angle ªfº 90É
Exhaust
Outer diameter ªD
1º
Standard39.535 - 39.545
(1.5565 - 1.5569)
0.2 (0.008) Oversize
(Service)39.735 - 39.745
(1.5644 - 1.5648)
0.4 (0.016) Oversize
(Service)39.935 - 39.945
(1.5722 - 1.5726)
Inner diameter ªD
2º32.9 - 33.1
(1.295 - 1.303)
Diameter of seat ªD
3º37 0.1
(1.46 0.0039)
Cylinder head valve seat diam-
eter
Standard39.495 - 39.510
(1.5549 - 1.555)
0.2 (0.008) Oversize39.695 - 39.710
(1.5628 - 1.5634)
0.4 (0.016) Oversize39.895 - 39.910
(1.5707 - 1.5713)
Valve seat face angle ªfº 90É
SERVICE DATA AND SPECIFICATIONS (SDS)TD27Ti
Inspection and Adjustment (Cont'd)
EM-145
Page 1254 of 1767

VA LV E
Unit: mm (in)
SEM188
Valve head diameter ªDº
Intake 42.5 (1.67)
Exhaust 37 (1.5)
Valve length ªLº
Intake
117 (4.61)
Exhaust
Valve stem diameter ªdº
Intake7.965 - 7.980
(0.3136 - 0.3142)
Exhaust7.945 - 7.960
(0.3128 - 0.3134)
Valve seat angle ªaº
Intake
45É - 45É30¢
Exhaust
Valve margin ªTº limit 1.5 (0.059)
Valve stem end surface grinding
limit0.2 (0.008)
Valve clearance (Hot)
Intake
0.25 (0.01)
Exhaust
VALVE SPRING
Free length mm (in)
Painted red 53.80 (2.118)
Pressure height
mm/N (mm/kg, in/lb)31.8/713.0 - 788.5
(31.8/72.7 - 80.4,
1.252/160.3 - 177.3)
Assembled height
mm/N (mm/kg, in/lb)
Standard42.3/314.8 - 361.9
(42.3/32.1 - 36.9,
1.665/70.8 - 81.4)
Limit42.3/296.2
(42.3/30.2,
1.665/66.6)
Out of square mm (in) 2.0 (0.079)
CYLINDER HEAD TO VALVE DISTANCE
Unit: mm (in)
SEM724C
Standard Limit
Intake0.79 - 1.19
(0.0311 - 0.0469)Less than 1.75
(0.0689)
Exhaust0.80 - 1.20
(0.0315 - 0.0472)Less than 1.75
(0.0689)
SERVICE DATA AND SPECIFICATIONS (SDS)TD27Ti
Inspection and Adjustment (Cont'd)
EM-146
Page 1255 of 1767

CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
Standard Limit
Camshaft journal to
bushing clearance0.020 - 0.109
(0.0008 - 0.0043)Less than 0.15
(0.0059)
Camshaft journal
diameter
Front50.721 - 50.740
(1.9969 - 1.9976)Ð
2nd50.521 - 50.540
(1.9890 - 1.9898)Ð
3rd50.321 - 50.340
(1.9811 - 1.9819)Ð
4th50.121 - 50.140
(1.9733 - 1.9740)Ð
Rear49.921 - 49.940
(1.9654 - 1.9661)Ð
Camshaft bend (Total
indicator reading)Less than 0.02
(0.0008)Less than 0.06
(0.0024)
Camshaft end play0.08 - 0.28
(0.0031 - 0.0110)Less than 0.50
(0.0197)
EM671
Standard Limit
Cam height ªAº
41.570 (1.6366) Less than
Intake
Exhaust 41.900 (1.6496) Less than
VALVE LIFTER AND PUSH ROD
Unit: mm (in)
Standard Limit
Valve lifter outer
diameter24.960 - 24.970
(0.9827 - 0.9831)Ð
Cylinder block valve
lifter hole diameter25.000 - 25.033
(0.9843 - 0.9855)Ð
Valve lifter to lifter
hole clearance0.030 - 0.073
(0.0012 - 0.0029)Less than 0.20
(0.0079)
Push rod bend (TIR)Less than 0.3
(0.012É)Less than 0.5
(0.020)
*: Total indicator reading
ROCKER SHAFT AND ROCKER ARM
Standard Limit
Rocker shaft
Outer diameter19.979 - 20.00
(0.7866 - 0.7874)Ð
Rocker shaft bend
(TIR)*0 - 0.10
(0 - 0.0039)less than 0.30
(0.0188)
Rocker arm
Inner diameter20.014 - 20.035
(0.7880 - 0.7888)Ð
Clearance between
rocker arm and
rocker shaft0.014 - 0.056
(0.0006 - 0.0022)less than 0.15
(0.0059)
*: Total indicator reading
SERVICE DATA AND SPECIFICATIONS (SDS)TD27Ti
Inspection and Adjustment (Cont'd)
EM-147
Page 1256 of 1767

PISTON, PISTON RING AND PISTON PIN
Available piston
Unit: mm (in)
SEM778A
Piston skirt diameter ªAº
Standard
Grade No. 195.890 - 95.900
(3.7752 - 3.7756)
Grade No. 295.900 - 95.910
(3.7756 - 3.7760)
Grade No. 3*95.910 - 95.920
(3.7760 - 3.7764)
ªaº dimension 45.2 (1.780)
Piston pin hole diameter29.992 - 30.000
(1.1808 - 1.1811)
Piston to cylinder liner clearance0.043 - 0.077
(0.0017 - 0.0030)
ªAº dimension 69.2 (2.724)
Grade No. 3 piston is not provided as a service part.
Piston pin
Unit: mm (in)
Piston pin outer diameter29.993 - 30.000
(1.1808 - 1.1811)
Piston pin to piston clearanceþ0.008 to 0.007
(þ0.0003 to 0.0003)
Piston pin to connecting rod
clearance
Standard0.025 - 0.045
(0.0010 - 0.0018)
Limit 0.15 (0.0059P)
Piston ring
Unit: mm (in)
Standard Limit
Side clearance
To p0.00 - 0.05
(0.0 - 0.0020)0.50 (0.0197)
2nd0.04 - 0.072
(0.0016 - 0.0028)0.30 (0.0118)
Oil0.035 - 0.040
(0.0014 - 0.0016)0.15 (0.0059)
Ring gap
To p0.25 - 0.35
(0.0098 - 0.0014)
1.5 (0.059) 2nd0.50 - 0.75
(0.0197 - 0.0295)
Oil (rail ring)0.25 - 0.55
(0.0098 - 0.0217)
CONNECTING ROD
Unit: mm (in)
Center distance156.975 - 157.025
(6.1801 - 6.1821)
Bend, torsion [per 200 (3.94)]
Limit 0.15 (0.0059)
Piston pin bore dia.30.025 - 30.038
(1.1821 - 1.1826)
Side clearance
Standard0.10 - 0.22
(0.0039 - 0.0087)
Limit 0.22 (0.0087)
SERVICE DATA AND SPECIFICATIONS (SDS)TD27Ti
Inspection and Adjustment (Cont'd)
EM-148