3.5 Torque values - standard screws
WinGD highly recommends to use the torque values given in Table 3-16 - Torque values -
standard screws for aII standard metric screws of grade 8.8.
Lubricate the threads and base of the head of the screws with oil SAE 30.
For the screws in high temperature areas (exhaust pipes, expansion pieces etc.), use a heat
resistant lubricant, for example Never Seez NSBT8. Then you have to decrease the torque
values, refer to Table 3-15 - Torque value - applicable decrease.
These torques values do not apply to turbocharger installations. Refer to the documents of the
turbocharger manufacturer for the correct torque values.
Tab 3-15 Torque value - applicable decrease
Lubricant Applicable torque decrease
Molyslip copaslip 8% (0% to 15%)
Never Seez regular grade (NSBT8) 24% (17% to 30%)
Molykote paste G-n Plus 27% (20% to 33%)
X72DF
AA00-0000-00AAA-034A-A
Maintenance Manual Torque values - standard screws
Winterthur Gas & Diesel Ltd.
- 82 - Issue 002 2020-10
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