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Troy-Bilt 78 Benutzerhandbuch

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78/83/90 Series Horizontal Shaft Engines
116
in.
mm
in.
mm
in.
mm
Intake lobe height
78
1.248
31.70
1.252
31.80
1.237
31.42
83
1.281
32.54
1.285
32.64
1.269
32.24
90
1.281
32.54
1.285
32.64
1.269
32.24
Exhaust lobe height
78
1.248
31.70
1.252
31.80
1.237
31.52
83
1.261
32.02
1.264
32.12
1.249
31.73
90
1.261
32.02
1.264
32.12
1.249
31.73
Cam shaft min OD                            
(cylinder block side)
78
0.636
16.17
0.637
16.18
0.633
16.09
83
0.636
16.17
0.637
16.18
0.633
16.09
90
0.636
16.17
0.637
16.18
0.633
16.09
Cam shaft min OD (sump side)
78
0.636
16.17
0.637
16.18
0.633
16.09
83
0.636
16.17
0.637
16.18
0.633
16.09
90
0.636
16.17
0.637
16.18
0.633
16.09
Cam shaft bearing max. ID             
(cylinder block)
78
0.638
16.20
0.639
16.22
0.639
16.22
83
0.638
16.20
0.639
16.22
0.639
16.22
90
0.638
16.20
0.639
16.22
0.639
16.22
Cam shaft bearing max. ID (sump)
78
0.638
16.20
0.639
16.22
0.639
16.22
83
0.638
16.20
0.639
16.22
0.639
16.22
90
0.638
16.20
0.639
16.22
0.639
16.22
Balance shaft min OD                      
(cylinder block side)
78
N/A
N/A
N/A
N/A
N/A
N/A
83
0.589
14.97
0.590
14.98
0.587
14.90
90
0.589
14.97
0.590
14.98
0.587
14.90
Balance shaft min OD (sump side)
78
N/A
N/A
N/A
N/A
N/A
N/A
83
0.589
14.97
0.590
14.98
0.587
14.90
90
0.589
14.97
0.590
14.98
0.587
14.90
Balance shaft bearing max. ID (sump)
78
N/A
N/A
N/A
N/A
N/A
N/A
83
0.591
15.00
0.591
15.00
0.592
15.03
90
0.591
15.00
0.591
15.00
0.592
15.03
Specification
New Min
New Max
Service Limit
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