Specific Torque Tensions; Cylinder Head Assembly - Perkins New 1000 Series Workshop Manual

11

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

Cylinder head assembly

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