Jan Ridders Otto 4 stroke

[va4ngo]

Since building my first engine more than 30 years ago, I had no interest in internal combustion engines, better left to the rev heads! Until being inspired by a recent 4 stroke build by our forum member "Kadett" all the way over Russia. His was a fascinating build in that he used salvaged components from brake cylinders to build his piston and crankcase, Gears from a gas meter for his 2:1 reduction gear and even made his own spark plug. It was a joy to see operating. As a result, I have now commenced on my "Jan Ridders Otto 4 stroke

The inlet and exhaust cams will be made in pairs

 

[JaamieG]

I will be following your thread with interest. This might be one of my future next projects after i complete 100% my Debbie and a stirling.
Cheers,
Giacomo

 

[va4ngo]

Measure twice cut once. These parts just fit in . These uprights along with base plate and support plate are 10mm Aluminium and will be partly finished on my "Wham bam thank you maam" no fuss disk sander

 

[va4ngo]

support brackets are roughed out ready for sanding and marking up

 

[va4ngo]

The end plates are 10mm thick aluminium plate and I have used 6060 T5. I made up a paper pattern to the correct sizes and cut them out with a jigsaw fitted with a metal.cutting blade. Some form of lubrication is essential so used a dry lube, this facilitates cutting.

 

[borna]

This engine by Jan looks so good. Once I saw it running in youtube, I said I had to make one. To make it more
challenging for myself, I decided to make one that looks like his engine a little larger but using my own design.

Borna

 

[va4ngo]

Borna, I did see yours and was impressed, well done.

Here is the left support ready to drill/bore/file by hand. The two other supports will be made the same way

 

[va4ngo]

Here is one of the three uprights with lightening holes addes and being drilled for the 8x22 bearing. Note I have removed one of the 4 jaws and used a bolt in a convenient spot as the jaw would not extend sufficiently. All uprights will be machined the same way

 

[va4ngo]

The mounting plate is 10mm Aluminium and measures 150 x 130mm. Laid out , centre drilled and ready fir drilling

View attachment 60563

 

[va4ngo]

Mounting plate almost complete. Need. to figure out how to counterbore a 30 mm diameter bore 5mm deep without a faceplate or mill.






Good to see hiw things are coming along with a preliminary test fit

 

[va4ngo]

cant figure out how to rotate picture from this android app.

 

[higby]

Did you ever finish this engine.

Cheers

Richard (Australia)