View Full Version : How do you torque the Front lower control arm hardware?
CDXXVII
04-26-2011, 12:09 AM
I inserted the bolts for the control arms as indicated in the manual. This is actually the only way they can go due to the vertical frame member between the arm legs. The only place I can put the torque wrench on is on the bolt head. I have always thought the only way to torque hardware is with the torque wrench on the hex nut while holding the bolt. I can get the proper torque on the bolt but it seems that the hex nut is no where near as tight and I can get another 1/4 turn with just an open end wrench.
Thoughts?
While holding the arm parallel to the ground, torque the bolts to 135-149Nm (100-110 lbft).
DARKPT
04-26-2011, 06:37 AM
Use a crow's foot that fits the nut and your torque wrench.
Simple approach: Set the crow's foot so that it is the same distance from the opposite end of the torque wrench as a traditional socket would be
Complex approach: Measure 1 foot from the center of rotation of a traditional socket and mark the wrench. Install the crow's foot and measure from the center of rotation using the crow's foot to the mark on the wrench. Calculate the difference in lengths as a percentage, then decrease the specified torque by that percentage if the crow's foot distance is longer. If the crow's foot distance is shorter, then you'll need to increase the torque by that percentage.
CDXXVII
04-26-2011, 07:43 AM
I thought about getting a crows foot. I did not think I could get 110 ft/lbs out of an open end wrench design without rounding the hex nut. I will give it a try if you think it will work.
thanks