- Joined
- Dec 9, 2015
- Messages
- 327
- Reaction score
- 349
Gday all
I have started a new project and would like to document it here for future reference and others to see.
I want to build a single cylinder air cooled four stroke engine which I could one day convert to hit and miss.
I don't have any plans so will be working with my own thoughts and copy a few things I've seen.
First thing made is the crankshaft. After having a crank that was made in sections fail I decided to try and make a one piece crankshaft. This wasn't as difficult as I thought and I'm happy with how it turned out. Made from 4140 rod.
The shafts and throw are 10mm in diameter with a 28mm stroke. Haven't decided on bore size yet, this will depend on material availability. The crank will run in ball bearings.
That's it for now. Next will be a base to mount it and the cylinder. Plan to make the cylinder out of cast iron then nickel plate it for corrosion protection.
Cheers
I have started a new project and would like to document it here for future reference and others to see.
I want to build a single cylinder air cooled four stroke engine which I could one day convert to hit and miss.
I don't have any plans so will be working with my own thoughts and copy a few things I've seen.
First thing made is the crankshaft. After having a crank that was made in sections fail I decided to try and make a one piece crankshaft. This wasn't as difficult as I thought and I'm happy with how it turned out. Made from 4140 rod.
The shafts and throw are 10mm in diameter with a 28mm stroke. Haven't decided on bore size yet, this will depend on material availability. The crank will run in ball bearings.
That's it for now. Next will be a base to mount it and the cylinder. Plan to make the cylinder out of cast iron then nickel plate it for corrosion protection.
Cheers