The air-cooled single-cylinder four-stroke petrol engine is identical in design to the four cylinder engine. A modified cylinder head permits additional experiments with various combustion chamber inserts. To adjust the mixture composition, the carburetor was modified.
Order Code : 32646 is fitted with a special device to adjust the ignition timing - from advanced to retarded. The engine includes a sensor to measure the exhaust gas temperature. The sensor, ignition cut-off and fuel supply are connected to the AM501 test stand.

Specifications
Air-cooled single-cylinder four-stroke petrol engine for installation in the AM 501 test stand
5 variable compression ratios, adjustable by varying the combustion chamber geometry
Adjustable ignition point
Mixture composition adjustable
Engine mounted on vibration-insulated base plate
Force transmission to brake via pulley
Engine complete with fuel hose and exhaust gas temperature sensor
Fuel hose with self-sealing quick-release coupling

Technical Specifications
Air-cooled single-cylinder petrol engine
Power output: 1,2kW at 3200min-1
Bore: 65,1mm
Stroke: 44,4mm
Compression ratios: 1:10; 1:8,5; 1:7 (original Compression ratio), 1:5,5; 1:4
Ignition timing adjustable in 11 stages:
10° after TDC to 40° before TDC
Belt pulley: diameter=125mm

Experiments
In conjunction with AM 501 test stand and loading unit, in addition to the standard basic experiments
Influence of compression ratio, mixture composition, ignition timing on engine characteristics and exhaust gas temperature

Scope of Delivery
1 engine, complete with all connections and supply lines
5 combustion chamber inserts
1 pin type face wrench
1 manual