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Started building a generator for my 2VD5. Primarily to increase the rotational inertia to lower the rpm without increasing the size of the flywheel. The rotor comes from the stator of an old ceiling fan. The stator will get permanent magnets.

Hi there, I was wondering if I can run my IC engine 25 mm (1 inch) bore on propane or butane (or mixture) to avoid having the need for a carburetor. Just running idle is sufficient, no need for various RPMs as it will only be used to run the engine for demonstration only. My idea is as follows...

Due to a design challenge, I cannot silversolder/braze a part in the exhaust. Any ideas on how hot the exhaust manifold of a low revving model engine like a Webster engine gets? Maybe I can soft solder or glue it with high temperature (250 degree Celcius / 482 degree Fahrenheid) silicone. It...

Please find attached a manual that I wrote to describe the method I used for casting the tin crank case covers. Regards, Xander

Today I converted an old hydraulic car jack and some rest material into a shop press. No more pressing bearings and dowel pins using the bench vise, but a proper and stable vertical press.

Hi all, I have a question regarding a wasted spark scheme i.e. two spark plugs firing at the same time in a two cylinder engine. In the book of Doug Kelley, there is the Titan, a 2 cylinder 360 degree engine. Here I understand the wasted spark idea: one plug fires at the end of the compression...

Since my first single cylinder engine is now running, I will start with my next project. The idea is to build a replica of a "De Industrie 2VD5" engine as build by the Dutch brand "De Industrie" which build various marine and stationary engines between 1910 and 1977. The VD range was build...

As my "Ridders vapour carburetor" seems to be an issue in running my new (and first) engine, I'm looking for a carburetor plan. Does not have to be a throttling version. A single, well running RPM is all I'm looking for. No vroom-vroom for this engine. Engine is a 1 inch bore x 1 inch stroke...

Hi all, After building several stirling engines and one Jan Ridders engine, my ultimate dream is to design and build a multi (3 or 4) cylinder engine like the old Holt75, Fairbanks Morse etc engines. I would like to see how low the RPM's at which it is still running reliably can get...

Hi all, For my single cylinder engines, I have a CDI with a short section of HT wire going to the spark plug. This unit I use for multiple engines by simply disconnection the 4 wires (1x ground, 2x contact pionts and 1x HT to spark plug). Since I want to build a multi (start with 2 and then...

Hi, After building a Jan Ridders engine, I'm planning to design my first engine from scratch. I'm quite confident that I can finish the mechanical design. However I lack some specific information which I hope to find in this forum. My plan is to have the cooling water (with additives) to flow...

Hi all, After building several Stirling engines and Jan Ridders (like) IC engine, I'm thinking of designing my own 2 or 3 or 4 cylinder IC engine loosely based on the appearance of the BruceMacBeth engine. Idea is to use a build cranckshaft with oversized journals that include ball-bearings...

Hi all, I'm planning to design and build my first IC engine where I will base my design on several plans I can find online e.g. Webster, Jan Ridders. Here I find various compression ratios ranging from ~3 to almost 10. I would love to make a "slow running farm engine" like engine. Does...