Weber State University (WSU) - Automotive Technology Department - Transmission Lab. This is the fifth in a series of videos on universal joints, constant velocity joints, and driveshafts. In this episode, we learn how to remove universal joints using the proper tools.

Timeline:
0:00 Start
0:18 Introduction
0:50 driveshaft removal procedures
3:28 driveshaft runout measurement experiment
10:00 Removal of the driveshaft from the vehicle
11:17 Nylon injected universal joint
14:05 General Motors universal joint service tool - Kent-Moore J-9522-3
15:48 Ford universal joint service tool - OTC 205-086-01
18:28 Homemade universal joint service tool with an OTC 927 bridge puller
23:40 the main objective of using the proper universal joint tools
26:30 Yoke ears are line bored
28:23 A bowed out snap-ring
33:21 The Arbor press
37:00 Snap-ring removal. Color and thickness inspection. Copper (0.059" thick)
41:42 Snap-ring removal. Color and thickness inspection. Coated Black (0.063" thick)
43:00 The difference in the four removed snap rings
44:07 Preparing to press out the universal joint
46:56 Pressing out the universal joint
53:27 Causes of repeat universal joint failures
54:28 Driveshaft end-yoke ear inspection and cleaning
59:02 Nylon injected snap ring removal

This video series helps partially cover the following NATEF Master Tasks:
3.D.1. Diagnose constant-velocity (CV) joint noise and vibration concerns; determine necessary action.
3.D.2. Diagnose universal joint noise and vibration concerns; perform necessary action.
3.D.4. Inspect, service, and replace shafts, yokes, boots, and universal/CV joints.
3.D.5. Check shaft balance and phasing; measure shaft runout; measure and adjust driveline angles.
3.E.4. Measure drive axle flange runout and shaft end play; determine necessary action.

Questions for Teachers:
1. What marking should be made when removing a driveshaft from a vehicle?
2. What can happen if proper marking is not made before removing a driveshaft?
3. Have you ever changed a universal joint?
4. If you have removed a universal joint, what tools did you use?
5. What is the main objective of using the proper universal joint removal tools?
6. What abnormal condition can cause a snap ring to bow outward from the bearing cap?
7. Why might an Arbor press be better suited for universal joint work than a hydraulic press?
8. Are all snap rings the same thickness if they came off of the same universal joint?
9. How much effort did it take me to press out the universal joint in the video?
10. Did I use a hammer and a chisel?
11. Did I damage the driveshaft yoke or the universal joint?
12. How can excessive universal joint working angles (Lifted trucks) cause premature universal joint failure?
13. Does it really matter if the yoke where the universal joint is to be reinstalled is clean or not?
14. What is the proper method of removing Nylon injected snap rings?

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http://www.weber.edu/automotive

This video was created and edited by Professor John D. Kelly at WSU. For a full biography, see http://www.weber.edu/automotive/J_Kel...

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