V90 Pushrod OHV Engine

A Over Head Valve (OHV) engine is an internal combustion engine with its valves placed in the cylinder head. This model is designed to be (de)mountable with allen bolts. As such the finished model is very suitable for educational purposes.Dimensions: 177 x 229 x 206 mm.Weight: 0.6 kg.SOME FEATURES OF THE MODEL- See through crankcase and cylinders|- Open and closed Cylinder Heads- Moving crankshaft and pistons- Valve control by camshaft, push rods and valve rockers- Valve clearance adjustment- Valve timing adjustment by idle gear- Engine head with inlet and outlet canals- Screwable exhausts and carburetors- Carburetors with moving gas slide- Removable Spark PlugsThe model is prepared to add a gearbox: https://makerworld.com/en/models/778128 METAL HARDWARE- 3 and 4 mm Allen Wrenches.- 4 coil springs for the valves, 16 mm width x 20 mm height. Wire thickness 0.8 mm (AliExpress).- 11 M5 x 16 mm Allen Bolts.- 8 M4 x 12 mm Allen Bolts. PRINTING AND ASSEMBLYThe parts should preferably be prin