Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK1987SKYHAWK SPORT, 2.0 1, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSOVERHAUL & TESTING - 125C/3T40TRANSAXLE DISASSEMBLYCONTROL VALVE BODY & OIL PUMP ASSEMBLYINPUT SHAFT-TO-CASE COVER END PLAY
1987 Buick Skyhawk Sport, 2.0 1, Automatic
Input Shaft-To-Case Cover End Play
1987 Buick Skyhawk Sport, 2.0 1, AutomaticSECTION Input Shaft-To-Case Cover End Play
- Install Output Shaft Loader Adapter Plug (J-26958-10) into right axle end. See Fig 1 . Mount Output Shaft Aligner/Loader (J-26958) and Bracket (J-26958-11) to right axle end of case. Adjust loader by turning handle until knob bottoms.
- Install Input Shaft Lifter (J-28544) into input shaft bore and tighten. Install dial indicator with Extension Post (J-25025-7). Place indicator plunger on end of lifter. Press down on lifter, zero dial indicator, and lift up tool. End play should be .004-.033" (.10-.84 mm).
- End play snap ring is located on input shaft, beneath driven sprocket. See INPUT SHAFT END PLAY SELECTIVE SNAP RINGS .
CAUTION:
Oil soaked snap rings may discolor. Measure snap ring for actual thickness.
INPUT SHAFT END PLAY SELECTIVE SNAP RINGS
| Thickness: In (mm) | Color Code |
|---|---|
| .071-.076 (1.80-1.93) | White |
| .078-.084 (1.98-2.13) | Blue |
| .088-.092 (2.23-2.33) | Brown |
| .095-.099 (2.41-2.51) | Yellow |
| .103-.107 (2.62-2.72) | Green |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.