3145, 3150 & 3160 INDUSTRIAL ENGINES Caterpillar

Torque for bolts holding the valve cover ... 120 ± 24 lb. in.(138.4 ± 27.7 cm.kg)

Torque for head bolts 1 thru 18:

1. Tighten all bolts in number sequence to ... 60 ± 10 lb. ft.(8.3 ± 1.4 mkg)

2. Again tighten all bolts in number sequence to ... 95 ± 5 lb. ft.(13.1 ± 0.7 mkg)

3. Again tighten all bolts in number sequence to ... 95 ± 5 lb. ft.(13.1 ± 0.7 mkg)

Torque for head bolts 19 thru 22 (tighten all bolts in number sequence to) ... 32 ± 5 lb. ft.(4.4 ± 0.7 mkg)