Lug Nut Torque Setting
#28
Use the factory setting of 65-87 ft lbs unless you car falls in the VIN range of the TSB AND you have the sound. Mazda would have came up with a solution at the assembly line after that. There is a reason a VIN range and model year is provided in TSBs.
#30
One Shot One Kill
Sorry for bumping an ultra old post. but please note that the TSB states to REMOVE lubrication, then use 108 ft-lb.
as such, If there are individual out there that lubricate their studs before tightening, please use the lower 85 ft-lb as to not snap the studs. the frictional k factor can fall from a .25 to a .19ish which will spell that difference.
108 ft-lb is probably a safe point to put it taking into account bad contact and thread but not to break the bolt if everything is perfect. lubing it will shoot it past this safe point. a lubed 108 ft-lb would be like doing about 130 ft-lb dry. (I did not crank math, but yah.. it's a lot of difference)
as such, If there are individual out there that lubricate their studs before tightening, please use the lower 85 ft-lb as to not snap the studs. the frictional k factor can fall from a .25 to a .19ish which will spell that difference.
108 ft-lb is probably a safe point to put it taking into account bad contact and thread but not to break the bolt if everything is perfect. lubing it will shoot it past this safe point. a lubed 108 ft-lb would be like doing about 130 ft-lb dry. (I did not crank math, but yah.. it's a lot of difference)
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projectr13b
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09-06-2015 01:04 PM