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| Home / Outboard Engines / Mercury Engines / Mariner 175 |
Mariner 175 Specifications
| Engine Model: Mariner 175 Hp |
| Engine Type: 2-cycle 6-cylinder gasoline outboard engine |
| Total Displacement: 153 cu.in (2507 cc) |
| Rated Engine Power: 175 Hp (130.5 kW) at 5500 rpm |
| Fuel System: Carburetor with adjustable jet |
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| General Technical Data |
Engine Model .............. Mariner 175 Hp
Engine Type .............. 2-stroke 6-cylinder gasoline outboard engine
Number of Cylinders .............. Six
Displacement, cu.in (cc) .............. 153 (2507)
Cylinder Bore, in (mm) .............. 3.50 (88.9)
Piston Stroke, in (mm) .............. 2.65 (67.3)
Maximum Engine Power, hp (kW) .............. 175.0 (130.5)
Maximum Engine Speed, rpm .............. 5000-5500
Idle Speed, rpm .............. 650±50
Firing Order .............. 1-2-3-4-5-6
Ignition System .............. Capacitor discharge
Starting System .............. Manual Start / Electric Start
Electrical System Rating, Volts .............. 12
Charging System .............. Alternator
Alternator Rating, Amps .............. 40
Outboard Weight, lbs (kg) .............. 395 (180)
| Fuel System |
Fuel System Type .............. Carburetor
Carburetor Type .............. Float
Fuel Pump Type .............. Diaphragm
Fuel Type .............. Gasoline with oil injection
Recommended Gasoline .............. Unleaded gasoline (87 octane minimum)
Recommended Oil .............. Quicksilver or Mercury Precision Lubricants TC-W3
Operating Fuel/Oil Ratio .............. 50:1
Fuel Pressure (Idle Speed), psi (kPa) .............. 2 (13.7)
Fuel Pressure (Wide Open Throttle), psi (bar) .............. 8 (54.8)
| Gear Housing |
Gear Ratio (Standard) .............. 1.87:1
Gear Ratio (High Altitude) .............. 2.00:1
Number of Teeth (Forward Gear, 1.87:1 Ratio) .............. 28
Number of Teeth (Reverse Gear, 1.87:1 Ratio) .............. 14
Number of Teeth (Forward Gear, 2.00:1 Ratio) .............. 28
Number of Teeth (Reverse Gear, 2.00:1 Ratio) .............. 15
Pinion Height, in (mm) .............. 0.025 (0.64)
Forward Gear Backlash (1.87:1 Ratio), in (mm) .............. 0.018-0.027 (0.460-0.686)
Forward Gear Backlash (2.00:1 Ratio), in (mm) .............. 0.015-0.022 (0.381-0.558)
Reverse Gear Backlash, in (mm) .............. 0.030-0.050 (0.762-1.27)
Water Pressure / RPM, psi (kPa) .............. 12 (82.2) / 2000
| Mid Section |
Transom Height (Short Shaft), in (mm) .............. 15 (380)
Transom Height (Long Shaft), in (mm) .............. 20 (510)
Power Trim (Total Tilt Range), deg .............. 75
Power Trim (Tilt Range), deg .............. 20
Tilt Pin Adjustment Positions .............. 5
Steering Pivot Range, deg .............. 60
Allowable Transom Thickness (Max), in (mm) .............. 2.37 (60.3)
| Cylinder Block |
Cylinder Block Type .............. V6, 2-cycle, loop charged
Cylinder Bore Type .............. Cast iron
Cylinder Compression, psi (kPa) .............. 110-135 (753-925)
Cylinder Bore Inside Diameter (Std), in (mm) .............. 3.501 (88.925)
Cylinder Bore Inside Diameter (Max), in (mm) .............. 3.503 (88.975)
Cylinder Bore (Max Out of Round), in (mm) .............. 0.003 (0.076)
Cylinder Bore (Max Taper), in (mm) .............. 0.003 (0.076)
Piston Type .............. Aluminum
Piston Outside Diameter (Std), in (mm) .............. 3.494 (88.748)
Piston Outside Diameter (Wear Limit), in (mm) .............. 3.492 (88.697)
Reed Type .............. Steel
Reed Stand Open (Maximum), in (mm) .............. 0.02 (0.50)
Reed Stop .............. Not Adjustable
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