Quote:
Originally Posted by stephen wilson
Anti-seize can change the installed bolt tension greatly, the increased lubricity can lead to an over-torqued fastener, or bolt breakage. IIRC the rule of thumb is to lower the torque wrench setting something like 50% vs. bolt installed dry. Oil has a similar but lesser effect.
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Sorry, but that is not remotely correct. To assure you obtain the correct torque settings, and the targeted clamping force, the fasteners (including washers) should be lubricated. This is particularly important in torque to yield applications like the flywheel bolts. Optimal repeatable results can be obtained using something like ARP's Ultra Torque compound, but in cases of dissimilar metals where later corrosion and thread galling is likely to occur, an anti seize compound should be used. When using a lubricant, no change in the torque wrench settings should be used, just apply the recommended torque.
If you want to see more information on the subject, check out ARP's website, they have an extensive white paper on what actually happens to the resulting torque (and clamping force) repeatability with and without lubrication, with vastly more data then you will probably ever need.
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