IT3 test engine preliminary design 2

The preliminary design is almost completed for the 20cc single cylinder test engine. It is expected that specific test components will be produced in the following weeks to assess the design of the cooling and lubrication systems.
The concept designs for the cooling and lubircation system pumps can be seen in the picture below. The final layuot of the pumps will not be incorporated to the engine to reduce complexity. See in green the test water pump. and in purple, the aspirating oil pump. The distribution system uses gears instead of chain, as was used in the previous test engines IT1, IT2. This creates a high degree of complexity during the machinning steps.