Upper Arm Pillow Ball Bushing Rotation Torque Check

WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tool:

MB990326: Preload socket

Insert the bolt to the upper arm pillow ball bushing, and install the nut with the washer from the opposite side. Rotate the inner cylinder (including washer) for several turns, and measure the rotation starting torque of the upper arm pillow ball bushing using the special tool MB990326.
Standard value: 1.5 N.m (13.2 in-lb) or less

Fig 1: Measuring Rotation Starting Torque Of Upper Arm Pillow Ball Bushing
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
When the measured value exceeds the standard range, replace the upper arm assembly.
Even if the measured value is within the standard value, check that the upper arm pillow ball bushing has no looseness or gritty feeling. If there is no looseness or gritty feeling, it is judged as usable.