TOHATSU BFT115A Service Manual page 18

SERVICE INFORMATION
MAINTENANCE STANDARDS
SERVICE INFORMATION
ENGINE
Part
Engine Idle speed (in neutral)
Trolling speed
Cylinder compression
Ignition timing At idle (*1)
Spark plugs Gap
Valves Valve clearance
Stem O.D.
Guide I.D.
Guide extrusion
amount
Stem-to-guide
clearance
Seat width
Seat installation height
Spring free length
Rocker arms Rocker arm I.D.
Rocker arm shaft O.D.
Rocker arm-to-rocker
arm shaft clearance
Pistons Skirt O.D.
Piston-to-cylinder clearance
Pin bore I.D.
Pin O.D.
Pin-to-pin bore clearance
Ring groove width
Piston rings Ring side clearance
Ring end gap
Ring thickness
Cylinder head Warpage
Camshaft journal I.D.
Head height
Cylinder head bolt O.D.
Cylinder block Cylinder sleeve I.D.
Warpage
Difference between upper and lower
parts of sleeve I.D.
*1: With the SCS service connector connected to the service check connector.
2-2
Item
750 ± 50 min
650 ± 50 min
1,230 – 1,630 kPa
(12.6 – 16.6 kgf/cm
at 200 min
0° BTDC at 750 min
1.00 – 1.10 (0.039 – 0.043)
IN 0.21 – 0.25
EX 0.28 – 0.32
IN 5.475 – 5.485 (0.2156 – 0.2159)
EX 5.450 – 5.460 (0.2146 – 0.2150)
IN/EX 5.515 – 5.530 (0.2171 – 0.2177)
IN 15.2 – 16.2 (0.60 – 0.64)
EX 15.5 – 16.5 (0.61 – 0.65)
IN 0.030 – 0.055 (0.0012 – 0.0022)
EX 0.055 – 0.080 (0.0022 – 0.0031)
IN/EX 1.25 – 1.55 (0.049 – 0.061)
IN 44.0 – 44.6 (1.73 – 1.76)
EX 44.0 – 44.6 (1.73 – 1.76)
IN 49.64 (1.954)
EX 49.64 (1.954)
IN 17.019 – 17.035 (0.6700 – 0.6707)
EX 17.012 – 17.039 (0.6698 – 0.6708)
IN/EX 16.983 – 16.994 (0.6686 – 0.6691)
IN 0.025 – 0.052 (0.0010 – 0.0020)
EX 0.018 – 0.056 (0.0007 – 0.0022)
A 86.980 – 86.990 (3.4244 – 3.4248)
B 86.970 – 86.980 (3.4240 – 3.4244)
0.020– 0.040 (0.0008 – 0.0016)
21.960 – 21.963 (0.8646 – 0.8647)
21.961 – 21.965 (0.8646 – 0.8648)
– 0.005 – + 0.002
(– 0.0002 – + 0.0001)
Top 1.230 – 1.240 (0.0484 – 0.0488)
Second 1.240 – 1.250 (0.0488 – 0.0492)
Oil 2.005 – 2.025 (0.0789 – 0.0797)
Top 0.040 – 0.065 (0.0016 – 0.0026)
Second 0.050 – 0.075 (0.0020 – 0.0030)
Top 0.20 – 0.35 (0.008 – 0.014)
Second 0.50 – 0.65 (0.020 – 0.026)
Oil 0.20 – 0.70 (0.008 – 0.028)
Top 1.175 – 1.190 (0.0463 – 0.0469)
Second 1.175 – 1.190 (0.0463 – 0.0469)
29.000 – 29.024 (1.1417 – 1.1427)
103.95 – 104.05 (4.093 – 4.096)
A or I 87.010 – 87.020 (3.4256 – 3.4260)
B or II 87.000 – 87.010 (3.4252 – 3.4256)
0.07 (0.003) Max
Standard
-1
(rpm)
-1
(rpm)
2
, 179 – 236 psi)
-1 (rpm)
-1 (rpm)
–
–
–
Unit: mm (in)
Service limit
–
–
930 (9.5, 135)
–
–
–
–
5.445 (0.2144)
5.420 (0.2134)
5.55 (0.219)
–
–
0.080 (0.0031)
0.110 (0.0043)
2.0 (0.08)
–
–
–
–
–
–
–
0.08 (0.003)
0.08 (0.003)
86.930 (3.4224)
86.920 (3.4220)
0.05 (0.0020)
–
21.953 (0.8643)
0.005 (0.0002)
1.25 (0.049)
1.25 (0.049)
2.050 (0.0807)
0.130 (0.0051)
0.130 (0.0051)
0.60 (0.024)
0.75 (0.030)
0.80 (0.031)
–
–
0.05 (0.002)
–
–
10.6 (0.42)
87.070 (3.4279)
87.070 (3.4279)
0.10 (0.004)
0.05 (0.002)