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Propeller Shaft U-Joint Working Angles

Weber State University (WSU) - Automotive Technology Department - Transmission Lab. The proper measurement procedure of propeller shaft (driveshaft) U-joint Working Angles. A U-Joint working angle is the difference between the angles of the two pieces the U-Joint connects together. For best results, working angles should be equal for each set (pair) of U-Joints). Timeline: 0:00 Introduction 1:06 Theory of working angles 1:47 Measuring the angle of the pinion gear = 2.8 degrees 3:00 Measuring the angle of the rear driveshaft = 1.8 degrees 3:05 Working angle calculation of the rear u-joint = (2.8 - 1.8 = 1.0 degrees) 4:05 Working angle calculation of the center u-joint = (4.6 - 1.8 = 2.8 degrees) Out-of-specification 4:54 How to repair working angle problems 5:50 Typically, the odd u-joint working angle needs to be kept at 0.5 degrees or less, but not 0 degrees. 6:15 The angle of the transfer case output shaft = 3.9 degrees 6:32 Calculating the odd u-joint working angle (4.6 - 3.9 = 0.7 degrees) 7:25 How the front sections of a multiple piece driveline are to be aligned 8:45 Summary of working angle calculations 9:28 How to correct improper working angles 10:30 Results of improper working angles, bad u-joints, or improper u-joint phasing http://www.weber.edu/automotive This video was created and edited by John D. Kelly at WSU. For a full biography, see http://www.weber.edu/automotive/J_Kel... Are you trying to diagnose a vibration in your vehicle? See the incredible vibration diagnosis NVH app at    / vibratesoftware   Donate to the Department of Automotive Technology at Weber State University here: http://advancement.weber.edu/Automotive