V4 coming up

[Ken_Shea]

That was a fun video Eric, I loved it

[nick.gilling]

Very nice balsaman. Very neat. It would probably run more smoothly with a flywheel although it's pretty smooth anyway.

Runs quite slowly, it it a long stroke? is that why it's called the lazy v4?!

Yeah what sort of valve gear is it balsaman? From the first pic it looks like there are two holes for piston type valves in the block. How are they driven and are the exhaust ports on the outer sides of the block??

Thanks, great engine ..

Nick

[balsaman]

Yes there are 4 piston type valves driven off of ecentrics on the main shaft. Two valves on each ecentric. The exhaust is directed out the top of the cylinder into pockets over the valves in the head and the pockets are ported to the outside via a hole in the head. Here is a 3D view to look at that could clear things up a little...

Bore and stroke .75" x 1.5"

The thing will run quite slowly altho it will do what seems like 5000 rpm if I crank up the pressure...

Flywheels are coming up soon, hang on...

Eric

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[nick.gilling]

Excellent Balsaman. You designed the engine yourself didn't you? Very unusual and unique. At least here in the UK we don't see much like that.

[balsaman]

Thanks. Yes, it's my own design and first design.

Eric

[drawbar]

Way cool.

Does it self-start or do you have to give it a little 'kick'?

Brian

[nick.gilling]

Impressive! Great little engine, I bet other people would be interested in building that.

Was it difficult to make?

So what's the next project then??

I noticed you'd done a Webster gas engine, how was that to make? I've never made an i.c. engine yet.

Thanks,

NIck

[balsaman]

Way cool.

Does it self-start or do you have to give it a little 'kick'?

Brian

It self starts, altho I need to up the pressure a little sometimes to get her to go, then I can reduce it to keep it running. I might try and play with the timing a bit to optimize it.

I am building a stand and some flywheels. Stay tuned.

[balsaman]

Impressive! Great little engine, I bet other people would be interested in building that.

Was it difficult to make?

So what's the next project then??

I noticed you'd done a Webster gas engine, how was that to make? I've never made an i.c. engine yet.

Thanks,

NIck

The plans may become available eventually. I want to see if I can get them published in a magaizine. If everyone turns me down, I will make plans available for free as my contribution to the hobby.

The Webster was easy to build as far as engines go I guess. Nothing is easy for me. It was my first engine. It took me several months.

Next project will be an inline twin cylinder, 4 stroke IC engine. Probably water cooled. Hopefully my own design.

Eric

[nick.gilling]

Excellent, keep up the good work Eric. The engine certainly looks neat enough and seems to run nicely. I definitely think a magazine would take it on.

The two model engineering magazines over here are called Model Engineer and Engineering in Miniature. Not sure whether you've heard of them but I think they would be interested.

I prefer trying to design things myself also. It's part of the fun.

Good luck with the twin cyl i.c. Keep us posted!

Nick

[balsaman]

All done

[nick.gilling]

Looks excellent Eric.

Did you do all that on CNC then? You have CNC machines at home?

Keep us posted on your next project then.

This forum is a great idea.

Nick