Advance Engines

From Advance's 1907 engine catalogue we know they produced the following engines:-


3HP Air Cooled Single Cylinder (372cc)

Bore & Stroke: 76mm x 82mm

Flywheel Diameter: 7 3/8", Flywheel Weight: 18 lbs.

Crankcase Dia (over lugs): 9", Crankcase Width: 3 3/8"

Inlet Valve Dia: 1 3/16", Exhaust Valve Dia: 1 5/16"

Drive Side Bearing: 2" x 3/4", Speed: 1,800 RPM

Total Length: 9", Total Height: 18", Total Weight 39 lbs


3HP Water Cooled Single Cylinder (372cc)

Bore & Stroke: 76mm x 82mm

Flywheel Diameter: 7 3/8", Flywheel Weight: 18 lbs.

Crankcase Dia (over lugs): 9", Crankcase Width: 3 3/8"

Inlet Valve Dia: 1 3/16", Exhaust Valve Dia: 1 5/16"

Drive Side Bearing: 2" x 3/4", Speed: 1,800 RPM

Total Length: 9", Total Height: 18", Total Weight 42 lbs


6HP Air Cooled Twin Cylinder (744cc)

Bore & Stroke: 76mm x 82mm

Flywheel Diameter: 9 1/4", Flywheel Weight: 26 lbs.

Crankcase Dia (over lugs): 11 1/4", Crankcase Width: 3 5/8"

Inlet Valve Dia: 1 3/16", Exhaust Valve Dia: 1 5/16"

Drive Side Bearing: 2 3/4" x 7/8", Speed: 1,800 RPM

Total Length: 15 1/2", Total Height: 19", Total Weight 75 lbs


6HP Water Cooled Twin Cylinder (744cc)

Bore & Stroke: 76mm x 82mm

Flywheel Diameter: 9 1/4", Flywheel Weight: 26 lbs.

Crankcase Dia (over lugs): 11 1/4", Crankcase Width: 3 5/8"

Inlet Valve Dia: 1 3/16", Exhaust Valve Dia: 1 5/16"

Drive Side Bearing: 2 3/4" x 7/8", Speed: 1,800 RPM

Total Length: 15 1/2", Total Height: 19", Total Weight 81 lbs


9HP Air Cooled Twin Cylinder (1145cc)

Bore & Stroke: 90mm x 90mm

Flywheel Diameter: 9 1/4", Flywheel Weight: 36 lbs.

Crankcase Dia (over lugs): 11 1/4", Crankcase Width: 4 1/8"

Inlet Valve Dia: 1 1/2", Exhaust Valve Dia: 1 9/16"

Drive Side Bearing: 2 3/4" x 1", Speed: 1,500 RPM

Total Length: 15 1/2", Total Height: 20", Total Weight 89 lbs


9HP Water Cooled Twin Cylinder (1145cc)

Bore & Stroke: 90mm x 90mm

Flywheel Diameter: 9 1/4", Flywheel Weight: 36 lbs.

Crankcase Dia (over lugs): 11 1/4", Crankcase Width: 4 1/8"

Inlet Valve Dia: 1 1/2", Exhaust Valve Dia: 1 9/16"

Drive Side Bearing: 2 3/4" x 1", Speed: 1,500 RPM

Total Length: 15 1/2", Total Height: 20", Total Weight 96 lbs

Other engines they produced were:-


2 3/4HP Air Cooled Single Cylinder (360cc) from around 1903

Not much is known about this engine. It must have been one of the first produced by Advance. There is an example of this engine in a complete motorcycle in the National Motorcycle Museum, Birmingham.


3 1/2HP Air Cooled Single Cylinder (476cc) 1908

Bore & Stroke: 84mm x 86mm


3 1/2HP Air Cooled Single Cylinder (482cc) 1910

Bore & Stroke: 85mm x 85mm


16HP Air Cooled inline Four (1608cc) 1910 used by Capt. R Scott

Bore & Stroke: 80mm x 80mm

This engine had a five bearing crankshaft machined from solid. It differed from all other Advance engines in that it had mechanical inlet valves rather than Automatic. Brown & Barlow supplied the carburettor and Bosch the magneto.


20HP Air Cooled 'V' Four (2290cc) 1909/10 aero engine

Bore & Stroke: 90mm x 90mm

Flywheel Diameter: 9 1/4", Crankcase Dia (over lugs): 11 1/4"

Inlet Valve Dia: 1 1/2", Exhaust Valve Dia: 1 9/16"

Drive Side Bearing: 2 3/4" x 1", Speed: 1,800 RPM

Total Length: 15 1/2", Total Height: 20".


Stationary Engine

Advance made stationary engines for agricultural use. These were exported all over the world