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Mercury 40 FourStroke User Manual

Mercury 40 FourStroke
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4
A
CYLINDER HEAD
90-857046R1 NOVEMBER 2001 Page 4A-1
POWERHEAD
Section 4A - Cylinder Head
Table of Contents
Table of Contents 4A-1. . . . . . . . . . . . . . . . . . . . . . .
Specifications 4A-2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools 4A-5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head 4A-6. . . . . . . . . . . . . . . . . . . . . . . . . .
Camshaft/Oil Pump 4A-8. . . . . . . . . . . . . . . . . . . . . .
Intake/Exhaust Valves 4A-10. . . . . . . . . . . . . . . . . . .
Torque Sequence 4A-12. . . . . . . . . . . . . . . . . . . . . . .
Valve Cover 4A-13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 4A-13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4A-15. . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Clearance Adjustment 4A-18. . . . . . . . . . . . . .
Checking Valve Clearance 4A-18. . . . . . . . . . . . .
Adjusting Valves 4A-19. . . . . . . . . . . . . . . . . . . . .
Timing Belt 4A-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 4A-20. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4A-21. . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head Removal 4A-22. . . . . . . . . . . . . . . . . .
Cylinder Head Disassembly 4A-24. . . . . . . . . . . . . .
Rocker Arm Assembly Removal 4A-24. . . . . . . .
Oil Pump Removal 4A-24. . . . . . . . . . . . . . . . . . .
Camshaft Removal 4A-25. . . . . . . . . . . . . . . . . . .
Valve Removal 4A-26. . . . . . . . . . . . . . . . . . . . . . .
Rocker Shaft and Rocker Arm 4A-27. . . . . . . . . .
Cleaning/Inspection/Repair 4A-28. . . . . . . . . . . . . . .
Camshaft 4A-28. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head 4A-30. . . . . . . . . . . . . . . . . . . . . . .
Valve Guide inspection 4A-30. . . . . . . . . . . . . . . .
Valve Guide Replacement 4A-31. . . . . . . . . . . . .
Valves 4A-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Springs 4A-33. . . . . . . . . . . . . . . . . . . . . . . .
Valve Seat Reconditioning 4A-35. . . . . . . . . . . . .
Valve Refacing Steps 4A-36. . . . . . . . . . . . . . . . .
Cylinder Head Reassembly 4A-37. . . . . . . . . . . . . . .
Valve Installation 4A-37. . . . . . . . . . . . . . . . . . . . .
Camshaft Oil Seal Installation 4A-38. . . . . . . . . .
Camshaft Installation 4A-39. . . . . . . . . . . . . . . . .
Oil Pump Installation 4A-40. . . . . . . . . . . . . . . . . .
Rocker Arm Shaft Assembly 4A-40. . . . . . . . . . .
Rocker Arm Shaft Installation 4A-41. . . . . . . . . .
Cylinder Head Gasket 4A-42. . . . . . . . . . . . . . . . .
Cylinder Head Installation 4A-43. . . . . . . . . . . . . . . .

Table of Contents

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Mercury 40 FourStroke Specifications

General IconGeneral
BrandMercury
Model40 FourStroke
CategoryOutboard Motor
LanguageEnglish

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