MTU Detroit Diesel 183 Series Technical Publication page 33

General
Tightening torques for plugs according to MTN 5183-1
This works standard applies to plugs as per DIN 908, DIN 910 and DIN 7604 with screwed plug DIN 3852 model A
(sealed by sealing ring DIN 7603-Cu).
Tightening torques M are given for plugs made of steel (St) with surface protected by a phosphate coating and
A
oiled or galvanised.
Threads and mating faces beneath heads must be coated with engine oil prior to assembly.
When tightening manually (tightening specifications), an assembly tolerance of +10% of the table values is
permitted for unavoidable deviations of the tightening torque from the table value during the tightening process - e.g.
resulting from inaccurate readings and overtightening during assembly.
Tightening torques = M
A.
Tightening torques for plugs DIN 908, DIN 910 and DIN 7604 A
(with short screwed plug).
Thread
M10 x 1
M12 x 1.5
M14 x 1.5
M16 x 1.5
M18 x 1.5
M20 x 1.5
M22 x 1.5
M24 x 1.5
M26 x 1.5
M27 x 2
M30 x 1.5
M30 x 2
M33 x 2
M36 x 1.5
M38 x 1.5
M42 x 1.5
M45 x 1.5
M48 x 1.5
M52 x 1.5
M56 x 2
M64 x 2
20080/1 E 98-12
DIN 908
Steel/grey cast iron
DIN 910
Inserted in
M (Nm)
A
15
35
35
40
50
55
60
70
80
80
100
95
120
130
140
150
160
170
180
190
205
Group
Subgroup
Page
DIN 7604A/C
Al-alloy
M (Nm)
A
15
25
25
30
35
45
50
60
70
70
90
85
110
115
120
130
140
145
150
160
175
00
0003
19