1983-1990 Mercury Mercruiser Marine Number 6 Stern Drive Units R, MR, Alpha One, Alpha One SS Service Repair Workshop Manual DOWNLOAD This is the Highly Detailed factory service repair manual for the 1983-1990 Mercury Mercruiser Marine Number 6 Stern Drive Units R, MR, Alpha One, Alpha One SS, this Service Manual has detailed illustrations as well as step by step instructions,It is 100 percents complete and intact. they are specifically written for the do-it-yourself-er as well as the experienced mechanic. 1983-1990 Mercury Mercruiser Marine Number 6 Stern Drive Units R, MR, Alpha One, Alpha One SS Service Repair Workshop Manual provides step-by-step instructions based on the complete dis-assembly of the machine. It is this level of detail, along with hundreds of photos and illustrations, that guide the reader through each service and repair procedure. Complete download comes in pdf format which can work under all PC based windows operating system and Mac also, All pages are printable. Using this repair manual is an inexpensive way to keep your vehicle working properly. Model And Serial Number: 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 Service Repair Manual Covers: 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...... ======================================== File Format: PDF Compatible: All Versions of Windows & Mac Language: English Requirements: Adobe PDF Reader & WinZip NO waiting, Buy from responsible seller and get INSTANT DOWNLOAD, Without wasting your hard-owned money on uncertainty or surprise! All pages are printable.It is great to have 1983-1990 Mercury Mercruiser Marine Number 6 Stern Drive Units R, MR, Alpha One, Alpha One SS Service Repair Workshop Manual. Looking for some other Service Repair Manual,please check: Thanks for visiting!