Gale Model 22D16 Outboard Motor Specs & Overview

Overview of the Gale 22D16 25 HP Outboard Motor

Gale Products, a key division of the Outboard Marine Corporation (OMC), produced reliable, no-nonsense outboard motors that shared much of their mechanical DNA with Evinrude and Johnson. Sold directly under the Gale Buccaneer name as well as department store house brands like Sea King (Montgomery Ward) and Atlas Royal, Gale motors delivered robust OMC engineering at an accessible price point.

The Gale Model 22D16 is a classic 25-horsepower twin-cylinder outboard engineered for medium-to-large runabouts, aluminum utility boats, and vintage wooden craft. Featuring a hefty 35.7 cubic inch displacement, full Forward-Neutral-Reverse (F-N-R) gearshift control, and twist-grip throttle synchronization, this mid-1950s powerhead is celebrated by collectors today for its rugged simplicity, excellent torque output, and easy parts availability due to cross-compatibility with OMC components.

Key Technical Specifications

• Model: Gale 22D16 (25 HP Series)
• Horsepower Rating: 25.0 HP @ 4,500 RPM (O.B.C. Certified)
• Full Throttle Operating Range: 4000 – 5000 RPM
• Cylinders: 2-cylinder, alternate firing twin
• Displacement: 35.7 cubic inches
• Bore & Stroke: 2-7/8″ Bore x 2-3/4″ Stroke
• Powerhead Type: 2-cycle, 2-port design
• Ignition System: Built-in flywheel magneto (dual coils, breaker points, and condensers)
• Carburetion: Float-feed carburetor with manual high- and low-speed adjustment needles
• Cooling System: Combination displacement and centrifugal water pump with flexible rubber impeller
• Gear Ratio: 12:21
• Gearshift Control: Full Forward – Neutral – Reverse (F-N-R)
• Propeller: 3-blade, 10-3/8″ diameter x 12-1/2″ pitch
• Speed Control: Synchronized spark advance and throttle with twist-grip handle
• Starter: Manual automatic rewind starter
• Fuel Tank Capacity: 6-gallon separate remote tank
• Recommended Transom Height: 15″ (Standard short shaft)
• Weight: 119.5 lbs. (dry weight without tank)

Maintenance, Restoration, & Fuel Mix Advice

Restoring and maintaining a Gale 22D16 is a rewarding project because OMC used standardized components across many 22 to 25 HP models during this production era. Here are key technical considerations for keeping your 22D16 running reliably:

1. Ignition System Tuning

The flywheel magneto system relies on dual ignition coils, breaker points, and condensers under the flywheel. Common issues with motors stored for long periods include cracked coil potting (a known vulnerability of vintage OMC coils) and pitted point contacts. Replace old coils with modern epoxy-potted replacements, set the breaker point gaps precisely to 0.020 inches, and ensure the flywheel key is undamaged before torquing the flywheel nut back to factory specs.

2. Fuel System & Fuel/Oil Mix Ratio

Because the 22D16 features needle and bronze bushing bearings on the crankshaft and connecting rods, it requires adequate oil lubrication to prevent internal failure.
Recommended Fuel-to-Oil Ratio: Run a 24:1 mix ratio (1 quart of high-quality TC-W3 2-stroke outboard oil to 6 gallons of regular gasoline).
Do not run modern 50:1 lean mixes on this vintage powerhead. Always use non-ethanol unleaded gasoline where available to protect the original carburetor cork float and internal neoprene rubber seals.

3. Cooling System Maintenance

The cooling system relies on a combination displacement and centrifugal water pump using a flexible rubber impeller located in the lower unit gear housing. If the motor has sat unused for years, the rubber impeller has likely hardened or lost its vanes. Replace the impeller prior to running the motor to prevent severe powerhead overheating. Always ensure water is discharging from the relief outlet below the motor cowl shortly after starting.

4. Lower Unit & Gearcase

The 12:21 ratio lower unit requires marine gear lube (OMC Hi-Vis or equivalent non-corrosive SAE 80W-90 marine gear oil). Drain and inspect the lower unit lubricant annually. If the gear lube appears milky, inspect the prop shaft seal, shift rod seal, and drive shaft seal for wear and replace them to prevent water intrusion and costly gear damage.