[QUOTE=Cisitalia;13123278]
Quote:
Originally Posted by CE750Jockey
Great question. You really should not be using anti-seize on the wheel lug bolts or caliper bolts. The design torque specification is always with dry fasteners. If you use the dry value torque specification with anti-seize applied, it acts like a lubricant and results in over torqueing of the fastener. Because of this it is possible to exceed the yield strength of the fastener or as a minimum stretch the fastener prematurely or excessively.
If you must use anti-seize, then you need to back down the applied torque by about 20-40% of the dry fastener torque specification.
Don’t use anti-seize on these types of bolts and torque them to the manufacturers recommendation (which defaults to dry values when not specified). Wire brush the bolts if looking a little bad and if really bad you can run an ez-out through the bolt holes to clean them up as well.
Keep in mind wheel lugs that are used on/off many times over the years should be replaced periodically. Also note worthy is, some manufacturers recommend replacing the brake caliper bolts every time they are taken off. Yeah but not many of us do that, but it is certainly a good idea to replace them every once in awhile. That is another good reason not to put anti-seize on brake caliper bolts.
In some applications when it is allowed to use wet or dry conditions, the manufacturer will provide both torque specification values. When the manufacturer designs a fastener application they typically pick a torque value about 80% of the ultimate yield strength of the fastener. That value is typically a dry value with no lubricant or anti-seize. So the wet value will be typically about 20-40% less torque. So you can see it is entirely possible to exceed the yield strength of the fastener with anti-seize, unless you reduce the torque.
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Whoa! Thanks guys. I always learn some stuff from these forums. I had no idea.