Gale Model 22DE10 Outboard Motor Specs & Overview

Gale Model 22DE10 (22 HP) Vintage Outboard Motor Overview

Produced by the Gale Products Division of the Outboard Marine Corporation (OMC), Gale outboards were built to deliver rugged, dependable service at a budget-friendly price point. Widely distributed under various store brand labels like Sea King (Montgomery Ward) and Buccaneer, Gale motors relied heavily on the time-tested mechanical designs of OMC’s mainstream lines (Johnson and Evinrude). The 22 HP Model 22DE10 is a prime example of a mid-1950s twin-cylinder mid-range motor, offering excellent torque and full gearshift convenience for fishing boats and lightweight runabouts.

Key Technical Specifications

• Model: 22DE10 (also covers 22DE12 variants)
• Horsepower: 22.0 HP @ 4,000 RPM (O.B.C. Certified)
• Powerhead Configuration: 2-cylinder, 2-port, alternate firing 2-stroke
• Bore & Stroke: 2-3/4″ Bore x 2-3/4″ Stroke
• Displacement: 32.6 Cubic Inches
• Gearshift Control: Full Forward-Neutral-Reverse (F-N-R)
• Gear Ratio: 12:21
• Ignition System: Built-in flywheel magneto with dual coils, points, and condensers
• Carburetor: Adjustable float-feed with high and low speed needle controls
• Starter Type: Electric starting with automatic rewind manual pull-starter backup
• Speed Control: Synchronized spark and throttle via twist-grip handle
• Propeller: 3-blade, 10-3/8″ diameter x 12-1/2″ pitch
• Cooling System: Rubber blade combination displacement and centrifugal water pump
• Fuel Tank Capacity: 6.0-gallon remote tank
• Weight: 125 lbs. (dry, without tank)
• Recommended Transom Height: 15″ (standard short shaft)

Two-Stroke Fuel Mixture & Lubrication

Because mid-1950s OMC engines utilize a combination of bronze bushings and needle bearings, running adequate oil in your fuel mixture is critical. Modern 50:1 mixtures do not provide sufficient oil volume for these vintage powerheads and will cause premature wrist pin or crankshaft failure.

The standard recommended mixture for the 22DE10 powerhead is 24:1. This equals 1 quart of high-quality TC-W3 two-stroke marine oil mixed into 6 gallons of gasoline (or approximately 5.3 oz of oil per gallon of gas). Whenever possible, use ethanol-free unleaded gasoline to prevent damage to vintage rubber components, cork floats, and internal fuel lines.

Restoration, Maintenance & Service Tips

Gale outboard motors are favored by vintage marine restorers due to their mechanical simplicity and shared parts compatibility with OMC motors from the same era.

• Magneto & Ignition Repair: The motor uses OMC’s standard flywheel magneto setup. If experiencing weak or no spark, pull the flywheel and inspect the ignition coils. Vintage coils commonly crack over time; modern OMC universal coils are direct drop-in replacements. Set the ignition breaker points to .020 inches.
• Cooling System Care: Always service the lower unit water pump before running a long-dormant motor. Replace the rubber impeller, clean out the water intake screens, and ensure the cooling passages in the powerhead are free of salt crystals or mud-dauber nests. Never run the motor out of water.
• Carburetor Rebuilds: Clean the high-speed and low-speed needle jets thoroughly. If the carburetor still uses an original shellac-coated cork float, replace it with a modern ethanol-resistant float to prevent sticking and fuel overflowing. Initial setup starting points are generally 1.5 turns out on the low-speed needle and 1 turn out on the high-speed needle, fine-tuned under load.
• Gearcase Maintenance: Inspect the lower unit oil regularly. If the drained gear lube appears milky or contaminated with water, replace the prop shaft seal, shift shaft seal, and drive shaft seal. Refill with high-viscosity SAE 80W-90 outboard gear lubricant.
• Electrical Wiring: Check all high-current starter cables, solenoid wiring, and grounding points. Corroded ground wires are the most common cause of weak electric starter performance on these models.