Vanguard 246400 Specifications

General Description

• The Vanguard 246400 is a single cylinder, gasoline engine. The engine is air-cooled and has an overhead valve (OHV), which means that the valve remains seated and the pushrod bends during engine use.

Cubic Inch Displacement

• Since Briggs & Stratton use a numerical model designation system, the "24" in the name "246400" indicates the approximate displacement measured in cubic inches. In other words, the volume of air swept by the piston within the cylinder. For the 246400, this is approximately 24 cubic inches, or 0.39 liters.

Crankshaft Orientation

• The crankshaft is the part of the engine that changes the movement of the piston(s) into rotational motion. The crankshaft is either horizontal or vertical. In the case of the 246400, the shaft is horizontal.

Type of Bearing

• A bearing is a component that permits relative rotation or linear movement between parts. The 246400 has a plain bearing with a non-flange mount. In other words, it is connected with an attachment that does not have a flange, or lip. There is no auxiliary drive or reduction gear on the 246400.

Type of Starter

• The final "0" in the "246400" name indicates that it is without a starter. This means that it leaves the factory without a starter. However, some engines will have ignition components added by the OEM (original equipment manufacturer). In other words, the ignition device will be added by the manufacturer of the lawnmower or other equipment. Briggs & Stratton suggest contacting the OEM for service and adjustment advice.

Electro-Magnetic Idle Down

• As small, air-cooled engines are not especially good at idling, or ticking over, a useful feature of the 246400 is an electromagnetic idle down. This allows the engine to idle, when it is still running but not being used for work purposes.

Fuel

• The Vanguard 246400 engine uses lead-free gasoline with a minimum of 85 octane. You should not use gasoline which contains Methanol, nor mix oil with gasoline.