Mitsubishi S12A2 User Manual

2-20
Chapter 2 SERVICE DATA
1.6.1 Belt tension
The force when the middle of belt straight line is pushed and deflected by 15 mm [0.5906 in.]
1.7 Air Start System
Unit N {kgf} [lbf]
Item
Number
of ribs
Belt straight distance (mm) [in.]
300 [11.81] or
below
more than 300 to 400
[11.81 to 15.75]
more than 400 to 500
[15.75 to 19.69]
more than 500 to 600
[16.69 to 23.62]
more than 600
[23.62]
When a new
belt is installed:
3 74 {7.55} [16.64] 49 {5.00} [11.02] 37 {3.77} [8.32] 29 {2.96} [6.52] 25 {2.55} [5.62]
4 88 {8.97} [19.78] 59 {6.02} [13.26] 44 {4.49} [9.89] 35 {3.57} [7.87] 29 {2.96} [6.52]
5 103 {10.50} [23.16] 69 {7.04} [15.51] 51 {5.20} [11.47] 41 {4.18} [9.22] 34 {3.47} [7.64]
6 118 {12.03} [26.53] 79 {8.06} [17.76] 59 {6.02} [13.26] 47 {4.79} [10.57] 39 {3.98} [8.77]
7 132 {13.46} [29.67] 88 {8.97} [19.78] 66 {6.73} [14.84] 53 {5.40} [11.91] 44 {4.49} [9.89]
8 147 {14.99} [33.05] 98 {9.99} [22.03] 74 {7.55} [16.64] 59 {6.02} [13.26] 49 {5.00} [11.02]
9 162 {16.52} [36.42] 108 {11.01} [24.28] 81 {8.26} [18.21] 65 {6.63} [14.61] 54 {5.51} [12.14]
10 176 {17.95} [39.57] 118 {12.03} [26.53] 88 {8.97} [19.78] 71 {7.24} [15.96] 59 {6.02} [13.26]
11 191 {19.48} [42.94] 127 {12.95} [28.55] 96 {9.79} [21.58] 76 {7.75} [17.09] 64 {6.53} [14.39]
12 206 {21.01} [46.31] 137 {13.97} [30.80] 103 {10.50} [23.16] 82 {8.36} [18.43] 69 {7.04} [15.51]
When re-
adjusted:
3 51 {5.20} [11.47] 34 {3.47} [7.64] 26 {2.65} [5.85] 21 {2.14} [4.72] 17 {1.73} [3.82]
4 62 {6.32} [13.94] 41 {4.18} [9.22] 31 {3.16} [6.97] 25 {2.55} [5.62] 21 {2.14} [4.72]
5 72 {7.34} [16.19] 48 {4.89} [10.79] 36 {3.67} [8.09] 29 {2.96} [6.52] 24 {2.45} [5.40]
6 82 {8.36} [18.43] 55 {5.61} [12.36] 41 {4.18} [9.22] 33 {3.37} [7.42] 27 {2.75} [6.07]
7 93 {9.48} [20.91] 62 {6.32} [13.94] 46 {4.69} [10.34] 37 {3.77} [8.32] 31 {3.16} [6.97]
8 103 {10.50} [23.16] 69 {7.04} [15.51] 51 {5.20} [11.47] 41 {4.18} [9.22] 34 {3.47} [7.64]
9 113 {11.52} [25.40] 75 {7.65} [16.86] 57 {5.81} [12.81] 45 {4.59} [10.12] 38 {3.87} [8.54]
10 123 {12.54} [27.65] 82 {8.36} [18.43] 62 {6.32} [13.94] 49 {5.00} [11.02] 41 {4.18} [9.22]
11 134 {13.66} [30.12] 89 {9.08} [20.01] 67 {6.83} [15.06] 54 {5.51} [12.14] 45 {4.59} [10.12]
12 144 {14.68} [32.37] 96 {9.79} [21.58] 72 {7.34} [16.19] 58 {5.91} [13.04] 48 {4.89} [10.79]
Unit: mm [in.]
Item
Nominal
value
Standard value
Limit
value
Remarks
Starter valve
Starter valve outside diameter ø13 [0.51]
12.973 to 12.984
[0.5107 to 0.5112]
Starter valve inside diameter ø13 [0.51]
13.000 to 13.018
[0.5118 to 0.5125]
Clearance between valve and valve
guide
0.016 to 0.045
[0.0006 to 0.0018]
0.100
[0.0039]
Valve spring free length 30 [1.18]
28
[1.10]
Distributer valve
Distributer valve height 22 [0.87]
21.8 to 21.9
[0.858 to 0.862]
21.5
[0.847]
Distributer shaft outside diameter ø20 [0.79]
19.959 to 19.980
[0.7858 to 0.7866]
Bushing inside diameter ø20 [0.79]
20.000 to 20.021
[0.7874 to 0.7882]
Clearance between shaft and bushing
0.020 to 0.062
[0.0008 to 0.0024]
0.150
[0.0059]

Mitsubishi S12A2 Specifications

General

Brand	Mitsubishi
Model	S12A2
Category	Engine
Language	English