When your 1983-1990 Mercury Mercruiser Marine Engines Number 6 Stern Drive Units R, MR, Alpha One, Alpha One SS needs maintenance or repair，This service repair manual is great to have.

Becase it is the official highly detailed digital factory service repair manual. Manufacturers, professional technicians, and maintainers all over the world use this manual, which is the best option for anyone.

This QUALITY manual is 100 percents COMPLETE and INTACT,

This manual is INSTANT DOWNLOAD. You can save time and money by purchasing this manual, which you can browse on your electronic products, or print out for reference.

 

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
Serial Number
— 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

 

Manual Contents:

Section 1 – Important Information
A – Important Information
B – Maintenance
C – Troubleshooting

Section 2 – Removal, Installation and Adjustments
A – All Models

Section 3 – Sterndrive 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

Section 4 – Transom Assembly
A – Service Procedures Requiring Minor
B – Service Procedures Requiring Major Disassembly

Section 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

Section 6 – Steering Systems
A – Power Steering
B – Manual Steering

Section 7 – Corrosion Protection

And More………

 

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File Format: PDF
Compatible: All Versions of Windows & Mac ,Android
Language: English
Total Pages: 566

 

Use this 1983-1990 Mercury Mercruiser Marine Engines Number 6 Stern Drive Units R, MR, Alpha One, Alpha One SS service repair manual, Any owner could make the right decisions about how to maintain and repair their machine. We not only provide quality manuals, but we will also Provide excellent after-sales service, Customer Satisfaction Guaranteed!

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