Quote:
Originally Posted by Frank Reiner
G:
The rubber bushings have plastic liners which serve as the bearing surface in which the steel sleeves turn. There are also plastic washers top & bottom.
The picture is inverted; the arm and the bolt are on the bottom.
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For what it's worth, I dissected my old bushings today. Might help others like me (doing this for first time), understand how the idle arm is designed.
My car did not have washer 3. Apparently that is used to set relative heights of Idler arm (2) and Pitman arm when needed. They say to put washer back if you find one.
The bolt compresses the inner flanged metal sleeves and bushing caps between the upper cup washer and the lower flat washer. The bolt is torqued to 120NM so that the when the idler arm rotates, the flanged sleeves rotate in the integral bushing metal sleeves.
The rubber caps with lips clip onto the flanged sleeves top and bottom (1 below) These caps have an internal steel washer (2 below) that bears on the chassis mounting tube. Each cap has a non-steel copper colored washer (maybe fiber)(3 below) that presumably reduces friction between the steel end-cap washers and the chassis tube.
Too many words? How about some pictures
