MINI straight four air engine

by Illusion 3D printing · Vehicles

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To get it to tern gently push on the bottom of the pistons until you hear a click. After doing this to all pistons and valves gently rotate the crank shaft back and forth but not enuf to brake it. what you are able to rotate all the way around several times you can do one of two things 1. you can spin it by hand LOTS. this is time consuming but works or 2. you can blow compress air sideways on the propeller to make the engine tern wonderful in just a cupel of seconds.