Playmore Hobby 玩多D

Piston:
The material of this piston is choosen for its excellent strength to weight properties. The shape of the top of the piston is our 'Compact Combustion Tecnology' which improves the efficiency of the engine. This piston is also milled from a single block which further increases the strength.

Conrod:
The R7 conrod is made from a superlight alluminium which has been checked ultrasonic. The specific form of the R7 creates little turbulence inside the engine while running.

Sleeve:
The sleeve has 7 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance.

Rear cover:
The rear cover presents a round shape to optimize the filling and reducing the dead spaces. the steel plate is to reduce friction and to expand the lifespan of the conrod.

Crankshaft:
The crankshaft has a special shape to reduce turbulences inside the crankcase. The front part was extended to improve the seal against fuel leaking.

Rear ball bearing:
The rear ball bearing has high quality ceramic balls to minimize wear and inertia to improve acceleration and fuel consumption.

Front ballbearing:
The front ballbearing of this engine is equipped with high grade ceramic balls to improve accelleration and durability.

Carburettor:
The carburettor of this engine is made from plastic and in "reverse" style and has a sliding throttle valve.

Combustion chamber:
The combustion chamber is supported by an O-Ring which is placed between the combustion chamber and the crankcase to reduce the vibrations of the combustion chamber.

Glowplug:
The glowplug of engine is a Turbo type glowplug. Turbo glowplugs have a different shape than Standard glowplugs and therefor are not interchange able with engines that are using Standard glowplugs!