1983-1990 Mercury Mercruiser #6 Sterndrive Units R, MR, Alpha One, Alpha One SS Workshop Service Repair Manual

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Description

Product Reviews

Q&A

This manual is suitable for individuals ranging from first-time owners/amateurs to professional technicians. It provides easily readable instructions and all the necessary information to perform procedures correctly.

MODELS COVERED:

  • TRANSOM ASSEMBLIES
    • Model - Serial Number
      • MC 120R / 140B / 185R / 488R / 898R / 228R / 260R - 6216687 - 6849289
      • MC 120MR / 140MR / 170MR / 185MR / 190MR / 200MR / 230MR / 260MR / 300 Tempest MR - 6849290 - 0A471374
      • MC Alpha One / Alpha One SS - 0A471375 and Above
  • STERNDRIVE UNITS
    • MC 120R-260R
      • Original Ratio - Ratio If Serviced With 13:21 Gears
        • 1.98:1 - 1.94:1 - 6237861-6854392
        • 1.84:1 - 1.81:1 - 6225577-6862701
        • 1.65:1 - 1.62:1 - 6268065-6810537
        • 1.50:1 - 1.47:1 - 6229158-6847029
        • 1.32:1 - 1.29:1 - 6231571-6663947
    • MC 120 MR - 300 TEMPEST MR
      • Original Ratio - Ratio If Serviced With 13:28 Gears Serial Number
        • 1.98:1 - 1.94:1 - 6854393-0A476746
        • 1.84:1 - 1.81:1 - 6862702-0A470164
        • 1.65:1 - 1.62:1 - 6810538-0A475786
        • 1.50:1 - 1.47:1 - 6847030-0A479506
    • MC ALPHA ONE / ALPHA ONE SS
      • Original Ratio - Ratio If Serviced With 13:28 Gears
        • R.H. Serial Number - L.H. Serial Number
          • 1.98:1 - 1.98:1 - 0A476747 and Above - 0C881740 and Above
          • 1.84:1 - 1.84:1 - 0A470165 and Above - 0C884040 and Above
          • 1.65:1 - 1.65:1 - 0A475787 and Above - 0C881790 and Above
          • 1.50:1 - 1.50:1 - 0A479507 and Above - 0C852908 and Above
          • 1.32:1 - 1.32:1 - 0A613927 and Above
          • Alpha One SS 1.50:1 / 1.32:1 - 1.50 / 1.32:1 - 0A545004 and Above
    • SEA RAY STERNDRIVE UNITS AND TRANSOM ASSEMBLY (OYSTER WHITE)
      • Original Ratio - Ratio If Serviced With 13:21 Gears Serial Number
        • 1.98:1 - 0B803866-0C348031
        • 1.84:1 - 0B800854-0C343526
        • 1.50:1 - 0B796473-0C340666
        • 1.32:1 - 0B804807-0C340030
        • Transom Assembly - 0B815811-0C340333
  • SEA RAY - MERCRUISER
    • - 3.0L - 3.0L Alpha One
    • - 4.3L2 - 4.3L Alpha One
    • - 4.3L4 - 4.3LX Alpha One
    • - 5.7L - 5.7L Alpha One
    • - SRX 5.7L - 350 Magnum Alpha One
    • - SRX 7.4L - 454 Magnum Alpha One

TABLE OF CONTENTS:

  • 1 - IMPORTANT INFORMATION
    • A - Important Information
    • B - Maintenance
    • C - Troubleshooting
  • 2 - REMOVAL, INSTALLATION AND ADJUSTMENTS
    • A - All Models
  • 3 - STERN DRIVE UNIT
    • A - Drive Shaft Housing
    • B - Gear Housing - MR / Alpha One / Alpha One SS
    • C - Gear Housing - I-R
    • D - Gear Housing - Alpha One Counter Rotation
  • 4 - TRANSOM ASSEMBLY
    • A - Service Procedures Requiring Minor Disassembly
    • B - Service Procedures Requiring Major Disassembly
  • 5 - POWER TRIM
    • A - Oildyne Power Trim Pump (Plastic Reservoir)
    • B - Oildyne Power Trim Pump (Aluminum Reservoir)
    • C - Prestolite Power Trim Pump
    • D - Trim Cylinders
    • E - Dual Power Trim Control
    • F - Auto Trim II
  • 6 - STEERING SYSTEMS
    • A - Power Steering
    • B - Manual Steering
  • 7 - CORROSION PROTECTION
    • A - All Models

It is recommended to keep this shop manual handy and refer to it frequently. Performing routine preventive maintenance can save time and money by preventing premature failure and unnecessary repairs.

File Format: PDF

Compatible: All Versions of Windows & Mac

Language: English

Requirements: Adobe Reader

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