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.
Input Shaft: Inspection
- Inspect bush of sun gear (MG1 side)
:
- Using a dial indicator, measure the inside diameter of the bush.
Standard diameter:
25.525 - 25.546 mm (1.00492 - 1.00575 in.) .
Maximum diameter: 25.596 mm (1.00771 in.) .
- Visually check and make sure that burnt spots and scratches are not identified.
If the inside diameter exceeds the limit, replace the sun gear assembly.
- Using a dial indicator, measure the inside diameter of the bush.
- Inspect bush of sun gear (MG2 side)
.
- Using a dial indicator, measure the inside diameter of the bush.
Standard diameter:
25.525 - 25.546 mm (1.00492 - 1.00575 in.) .
Maximum diameter: 25.596 mm (1.00771 in.) .
- Visually check and make sure that burnt spots and scratches are not identified.
If the inside diameter exceeds the limit, replace the sun gear assembly.
- Using a dial indicator, measure the inside diameter of the bush.
- Check needle roller bearing
:
Check that burnt spots, deformation or play due to the wear is not identified.
If they are identified, replace the needle roller bearing.
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.