{"product_id":"1985-1989-mercury-mercruiser-gm-4-cylinder-marine-engine-service-manual","title":"MERCURY MERCRUISER GM 4 CYLINDER 1985-1989 Service Manual","description":"\n\u003cdiv style=\"width: 100%; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif; line-height: 1.6; color: #2d3748; background: #f3f6f8;\"\u003e\n    \n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #0073b1; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n    \u003cdiv style=\"background: linear-gradient(135deg, #0073b1 0%, #004471 100%); color: white; padding: 16px; text-align: center;\"\u003e\n        \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n            🏷️ Basic Information\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0073b1; padding: 12px 16px; font-weight: 600; color: #004471; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0073b1; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Identification\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Make:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Mercury MerCruiser\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Model:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            GM 4 Cylinder Marine Engines\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Year:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            1985-1989\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Generation:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #666666; background: #f5f5f5; padding: 8px 12px; border-radius: 8px; border: 1px solid #d0d0d0; font-weight: 600; font-size: 14px;\"\u003e\n            N\/A\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #1a5490; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n    \u003cdiv style=\"background: linear-gradient(135deg, #1a5490 0%, #0d3d6b 100%); color: white; padding: 16px; text-align: center;\"\u003e\n        \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n            📋 Manual Details\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f2f5f8; border-left: 4px solid #1a5490; padding: 12px 16px; font-weight: 600; color: #0d3d6b; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #1a5490; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Description\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Manual Type:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Workshop Repair Service Manual\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Manual Identifier:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            #10\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Language:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            English\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Format:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            PDF Download\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #4a90a4; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n    \u003cdiv style=\"background: linear-gradient(135deg, #4a90a4 0%, #2c5f75 100%); color: white; padding: 16px; text-align: center;\"\u003e\n        \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n            ⚙️ Engine Specifications\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #4a90a4; padding: 12px 16px; font-weight: 600; color: #2c5f75; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #4a90a4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        General\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Engine Family:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            GM 4 Cylinder\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #4a90a4; padding: 12px 16px; font-weight: 600; color: #2c5f75; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #4a90a4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Displacement\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Cid:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            153 - 181\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Liters:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            2.5L - 3.0L\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #4a90a4; padding: 12px 16px; font-weight: 600; color: #2c5f75; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #4a90a4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Models Covered\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Model Codes:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            MCM 120 MR, MCM 120 ALPHA I, MCM 2.5L, MCM 140 MR, MCM 140 ALPHA I, MCM 3.0L, SEA RAY 3.0L\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #4a90a4; padding: 12px 16px; font-weight: 600; color: #2c5f75; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #4a90a4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Power Output\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Horsepower Mcm 120:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            120 HP\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Horsepower Mcm 140:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            140 HP (Later models 130 HP)\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Horsepower Sea Ray 3 0L:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            130 HP (Later models)\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #4a90a4; padding: 12px 16px; font-weight: 600; color: #2c5f75; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #4a90a4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Compression Ratio\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Mcm 140 Sea Ray 3 0L Later Models:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            9.2:1\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #4a90a4; padding: 12px 16px; font-weight: 600; color: #2c5f75; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #4a90a4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Notes\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Mcm 2 5L Equivalence:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Same as MCM 120\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Sea Ray 3 0L Equivalence:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Same as MCM 140 (Later Models)\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #5a7c8a; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n    \u003cdiv style=\"background: linear-gradient(135deg, #5a7c8a 0%, #3d5762 100%); color: white; padding: 16px; text-align: center;\"\u003e\n        \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n            🔧 Transmission\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f5f7f8; border-left: 4px solid #5a7c8a; padding: 12px 16px; font-weight: 600; color: #3d5762; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #5a7c8a; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Drive Systems\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f5f7f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #3d5762; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Outdrive Types:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Alpha I, MR\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #0077b5; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n    \u003cdiv style=\"background: linear-gradient(135deg, #0077b5 0%, #00405c 100%); color: white; padding: 16px; text-align: center;\"\u003e\n        \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n            🔧 Maintenance\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0077b5; padding: 12px 16px; font-weight: 600; color: #00405c; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0077b5; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Fluid Recommendations\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Engine Oil Type:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Refer to manual for specific viscosity and type (e.g., SAE 25W-40 marine oil)\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Engine Oil Capacity:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Refer to manual (typically 5 quarts \/ 4.7 liters for 3.0L)\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Cooling System Type:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Closed cooling or raw water cooling (refer to specific model)\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0077b5; padding: 12px 16px; font-weight: 600; color: #00405c; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0077b5; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Service Intervals\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Recommended Service Frequency:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Annually or every 100 hours of operation (whichever comes first, refer to manual)\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0077b5; padding: 12px 16px; font-weight: 600; color: #00405c; font-size: 16px; position: relative;\"\u003e\n        \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0077b5; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n        Tune Up\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Spark Plug Gap:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Refer to manual for specific engine configuration\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n        \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n            Ignition Timing:\n        \u003c\/div\u003e\n        \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n            Refer to manual for specific engine configuration\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n","brand":"Mercury Mercruiser","offers":[{"title":"Default Title","offer_id":42170231324732,"sku":"37915","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/4489\/0428\/files\/37915-mercury-mercruiser-gm-4-cylinder-1985-1989-service-manual-pdf-download_7c495157-f2d1-4313-b855-0c6c18748c8e.jpg?v=1726155130","url":"https:\/\/e-manual.com\/products\/1985-1989-mercury-mercruiser-gm-4-cylinder-marine-engine-service-manual","provider":"e-Manual Online Workshop Manuals","version":"1.0","type":"link"}