V90 Pushrod OHV Engine
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This 4 Stroke Overhead Valve Engine can be (de)mounted with Allen bolts.
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Model information
- Source
- Printables
- Category
- Engineering
- License
- Creative Commons — Attribution — Noncommercial — NoDerivatives
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 and nuts. As such the finished model is very suitable for educational purposes.
Dimensions engine: 177 x 229 x 206 mm.
Weight engine: 0.6 kg.
SOME FEATURES OF THE MODEL
- See through crankcase and cylinders
- Open or 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 Plugs
The model is prepared to add a gearbox: https://www.printables.com/model/1066534-gearbox-for-v90-pushrod-ohv-engine
METAL PARTS
3 and 4 mm Allen Wrenches.
Four coil springs are needed 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 ASSEMBLY
The parts should be printed on a smooth build plate.
Avoid elephant foot and over-extrusion.
I printed the model with PLA+ filament, layer height 0.16 mm.
Use glue where indicated.
For assembled and exploded views, have a look at the .stl files in the “3D VIEWS” map.
Printing and assembly in alphabetical order (A1 → E3).
