Gale Model 35DE11 Outboard Motor Specs & Overview

Overview of the Gale 35DE11 Outboard Motor

Manufactured by Gale Products—a specialized division of Outboard Marine Corporation (OMC)—the Gale 35DE11 (and related 35DE12) was built to deliver heavy-duty performance at a competitive price point. Often sold under department store brand names like Buccaneer, Sovereign, or Sea King, Gale outboards shared core internal engineering and mechanical DNA with contemporary Johnson and Evinrude models. The 35 HP twin-cylinder powerhead is a classic 40.5 cubic inch workhorse known for its reliability, straightforward mechanical design, and impressive torque for mid-size vintage runabouts and utility boats.

Key Technical Specifications

• Model: Gale 35DE11 / 35DE12
• Horsepower: 35.0 HP @ 4,500 RPM (O.B.C. Certified)
• Operating RPM Range: 4,000 – 5,000 RPM
• Cylinders: 2 cylinders, alternate firing
• Displacement: 40.5 cubic inches
• Bore and Stroke: 3-1/16″ Bore x 2-3/4″ Stroke
• Powerhead Type: 2-cycle, 2-port
• Ignition System: Built-in flywheel magneto
• Carburetion: Concentric-type float carburetor with high and low-speed adjustable needle valves, featuring an electrically operated automotive-style choke
• Starting System: Electric start with manual automatic rewind recoil backup
• Gear Ratio: 12:21
• Gearshift Controls: Full Forward-Neutral-Reverse (F-N-R)
• Propeller: 3-blade, 10-3/8″ diameter x 13-1/4″ pitch
• Cooling System: Positive displacement and centrifugal synthetic rubber rotor impeller
• Fuel System: 6-gallon separate pressure/pressurized or suction fuel tank
• Estimated Running Time: Approximately 1-1/2 to 1-3/4 hours at full throttle
• Weight: 134 lbs (dry, excluding tank)
• Recommended Transom Height: 15 inches (Standard Short Shaft)

Maintenance, Restoration, and Fuel Mix Guidelines

Restoring and maintaining a Gale 35 HP engine requires attention to a few standard 2-stroke systems to ensure smooth operation and long service life:

1. Fuel-to-Oil Ratio Recommendations

Vintage 40.5 cubic inch OMC powerheads of this era generally rely on sleeve bearings and heavy-duty wrist pins that require generous lubrication. A fuel-to-oil mixture of 24:1 (16 oz / 1 pint of TC-W3 rated 2-stroke outboard oil per 3 gallons of gasoline, or 1 quart per 6-gallon tank) is recommended. Always use 87-octane ethanol-free gasoline where available to prevent damage to vintage carburetor floats, rubber fuel lines, and fuel pump diaphragms.

2. Ignition System Tune-Up

The flywheel magneto houses dual ignition coils, points, and condensers beneath the flywheel. When servicing an engine that has been sitting idle:

• Inspect coil windings for cracking or melted insulation; replace with modern OMC-compatible ignition coils if degraded.
• Clean and dress the breaker points, setting the gap precisely to 0.020 inches at peak cam lift.
• Verify spark strength using an open-air gap tester—it should easily jump a 1/4″ to 3/8″ gap with a crisp blue snap.

3. Cooling System & Water Pump Service

Never run the motor out of water. The synthetic rubber impeller in the lower unit will quickly overheat and destroy itself without water lubrication. Drop the gearcase to inspect and replace the impeller prior to commissioning a long-stored motor. Ensure the water intake screens are clear of debris and check that cooling water exits properly from the exhaust relief port once running.

4. Lower Unit Lubrication & Gearshift Adjustment

Drain the gearcase by removing both the top (vent) and bottom (drain) plugs. Inspect the drained gear lube for metal shavings or a milky appearance, which indicates water intrusion through worn prop shaft, drive shaft, or shift rod seals. Refill the gearcase from the bottom hole using standard marine 80W-90 non-corrosive lower unit gear lube until it flows cleanly from the top vent hole.