Perkins New 1000 Series, Workshop Manual, Page: 26 / 290

11
26 Workshop Manual, TPD 1350, issue 3
New 1000 Series
Specific torque tensions
The torque tensions below apply to components lubricated lightly with clean engine oil before they are fitted.
Special torques for setscrews and nuts
Thread
size
Torque
Description Nm lbf ft kgf m
Cylinder head assembly
Setscrews, cylinder head 1/2 UNF see operation 12-7
Setscrews, cylinder head (Engine types AR and AS)
M10
1/2 UNF
see operation 12-7
Fasteners, rocker shaft brackets:
- Aluminium brackets M12 40 30 4,1
- Cast iron and sintered steel brackets M12 75 55 7,6
Cap nuts, composite plastic rocker cover M12 20 15 2,1
Cap nuts, aluminium rocker cover M12 30 22 3,0
Setscrews, inlet manifold to cylinder head M10 44 33 4,5
Fasteners, exhaust manifold to cylinder head M10 44 33 4,5
Setscrews, engine lift bracket M10 44 33 4,5
Piston and connecting rod assemblies
Nuts, connecting rods 1/2 UNF 125 92 12,7
Setscrews, connecting rods 1/2UNF 152 114 15,8
Banjo bolts, piston cooling jets 3/8 UNF 27 21 2,7
Crankshaft assembly
Setscrews, main bearings 5/8 UNF 265 196 27,0
Setscrews, crankshaft pulley 7/16 UNF 115 85 11,8
Setscrews, viscous damper to crankshaft pulley M12 75 55 7,6
Cap screws, viscous damper to crankshaft pulley M8 35 26 3,6
Cap screws, crankshaft bonded damper to crankshaft
pulley
M8 35 26 3,6
Setscrews, rear oil seal housing to cylinder block M8 22 16 2,2
Cap screws, bridge piece to cylinder block M6 16 12 1,6
Cap screws, rear oil seal housing to bridge piece M6 13 10 1,3
Torxscrew, rear oil seal housing to bridge piece M8 18 13 1,9
Setscrew, idler gear hub of balancer unit M12 93 68 9,5
Nut, drive gear of balance weight 1/2 UNF 82 60 8,4
Setscrews, rear cover of balancer frame M10 54 40 5,5
Setscrews, oil transfer plate (balancer unit) M10 30 22 3,1
Setscrews, oil pump to balancer frame M8 27 20 2,8
Setscrews, balancer to cylinder block M10 54 40 5,5
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