Mercruiser mercury upper unit FULL rebuild - EVERYTHING 

Deep dive into new Yoke shaft design with 3rd machine cut
• 3rd O-ring groove on M...
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1. GLM oil seal kit (87500)
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2. Gasket compound sealant (1525607)
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3. Old seal punch tool (89-101-19)
4. Water pocket cover
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5. Loctite 680
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6. Spanner wrench
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7. Inch pound torque wrench
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Thanks!