Chapter 08 - Chapter 8 Worksheet 1 Name

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Unformatted text preview: Chapter 8 Worksheet 1 Name ________________________________________________ Date ___________________ Checking Thrust Washers, Bushings, and Bearings Upon completion of this worksheet, you should be able to inspect, measure, and replace thrust washers and bearings and inspect the bushings in a transmission/transaxle. Objective: Shop Manual 1 & 2 Tools and Materials Wire type feeler gauge set Bushing puller tool Bushing driver set Describe the transmission the pack is from: Model and type of transmission _________________________ Vehicle the transmission is from: Year __________ Make _______________ Model ______________________________ VIN ____________________________________ Engine type and size ______________________________ Procedures Task completed 1. The best time to inspect thrust washers, bearings, and bushings is during disassembly. The bushings should be inspected for pitting and scoring. Describe their condition. ________________________________________________________________________ ________________________________________________________________________ 2. Check the depth that the bushings are installed to and the direction of the oil groove, if so equipped, before you removed them. Many bushings that are used in the planetary gearing and output shaft areas have holes in them. Be sure to line these up correctly during installation or you may block off oil delivery and destroy the gear train. Describe their condition. ________________________________________________________________________ ________________________________________________________________________ 3. Observe the lateral movement of the shaft that fits into the bushing. Any noticeable lateral movement indicates wear and the bushing should be replaced. Describe your findings. ________________________________________________________________________ ________________________________________________________________________ 4. The amount of clearance between the shaft and the bushing can be checked with a wire- type feeler gauge. Insert the wire between the shaft and the bushing; if the gap is greater than the maximum allowable, the bushing should be replaced. What are the specifications for this gap and how do they compare to your measurement? ________________________________________________________________________ ________________________________________________________________________ 5. Measure the inside diameter of the bushing and the outside diameter of the shaft with a vernier-type caliper or micrometer. Compare the two and state your conclusion. ________________________________________________________________________ ________________________________________________________________________ 6. Most bushings are press fit into a bore. To remove them they are driven out of the bore with a properly sized bushing tool. Some bushings can be removed with a slide hammer fitted with an expanding or threaded fixture that grips to the inside of the bushing. Another way to remove bushings is to carefully cut one side of the bushing and collapse it. Once way to remove bushings is to carefully cut one side of the bushing and collapse it....
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Chapter 08 - Chapter 8 Worksheet 1 Name

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