2 cylinder flame licker

[Swifty]

I mentioned in a previous post that my next engine would be a flame licker, I am aware of how fussy they are to get going, despite that I have decided to double the trouble and build a twin. I have downloaded Jan Ridders plans for his "Flame Eater, 2 Cylinder, Internal Valves"

I will start the build shortly.

Paul.

View attachment Flame Eater 2-cyl int valves assembly.pdf

 

[idahoan]

Interesting looking design; do the pistons move the valves? It appears that there may be a detent ball but I don't see any linkage to operate the valves.

Dave

 

[Swifty]

Hi Dave, yes, the pistons move the valves. There is a detent ball with only the slightest amount of pressure to help the valves work. Everything has to move with no friction at all, it will be a nice challenge.

Paul.

 

[Swifty]

Looks like this one is being built from the ground up, made the base and feet.
The materials for this were at hand, I have to have a scrounge around for material for the other pieces. I will stain the wooden base a darker colour.

I already found a small mistake on the drawings, it pays to be careful.



Paul.

 

[jwcnc1911]

A mistake in Jan's drawings? Will you describe it?

 

[Swifty]

It relates to the holes in the feet, they specify 3 mm, but a 4 mm screw passes through to fasten onto the aluminium plate that everything is mounted on. I liked the look of the feet protruding out slightly from the timber base, as he shows in the assembly drawing, but if I made them to the sizes on the drawing, they would be hidden underneath. I altered the diameters to get it the way I wanted.

Paul.

 

[Swifty]

No further progress at the moment, I've had the worst cold / "man flu" for several days now. Itching to get back into the garage shortly.

Paul.

 

[Swifty]

Managed to cut out the flywheel blank from some brass plate, using my rotary table, and started to turn it. However, I have been in hospital the last few days having some vascular surgery on my arm, I now have a cut from my inner elbow to my arm pit, don't know when I can start machining again. Maybe I should use the time to do some design work.

Paul.

 

[idahoan]

Sorry to hear about the surgery Paul,

Take care and get well soon!

Dave

 

[Swifty]

I'm still recovering from the surgery on my arm, still very swollen, but I want to get back to machining. I managed to finish the flywheel, so here is a picture of it.



Ready now to tackle the rest of the build, sorry for the long break.

Paul.

 

[Swifty]

I have done most of the work on the cylinder, just have to finally lap a smooth finish in the bores.

Here is the turned blank.


And here is a picture after I turned the grooves in, and getting ready to part off.


Next, I bored the cylinder holes in the mill. The boring bar had a bit too much overhang and caused a bit of vibration as you can see. I have already honed out the chatter marks and will lap a smooth finish shortly.


Here is the nearly finished cylinder block. I only have to machine the air inlet ports in the 2 sides.


Paul.

 

[Cogsy]

Looking very nice Paul. I've always liked flamelickers. I toyed with the idea of building a 4 cylinder horizontal flywheel 'radial' flamelicker as my second build. Maybe I'll revisit the idea once I clear up a few projects.

 

[Swifty]

This flamelicker has 2 different sized bearings and uses 2 of each, they are MR63 and MR105, 3mm and 5mm ID's. I was going to drive to a local bearing suppliers, but decided to check eBay first, I was very happy that I did. I can but 10 of each for A$5.04 total delivered to my door, I can't even start my car and drive to the suppliers for that price. For an average of 0.25 cents for each bearing, I'm delighted. I just have to pop the seals off the couple that I need and wash the bearings out to reduce any friction.

Paul.

 

[Nicolas]

That is looking very good

 

[Swifty]

Hi Nicolas, been a bit busy lately to do much, but I managed to machine a few small bits today. My friend Eddie, who is also a member on this site, dropped in a load of graphite so I can machine the pistons soon.

Paul.

 

[AussieJimG]

That's looking good Paul, and you are lucky to have a supply of graphite. It is messy stuff to turn but the lathe works really smoothly afterwards.

Jim

 

[Lawijt]

That is really a great work. I'am struggling al the way around too build the one cilinder from Jan Ridders.
But keep the good work going on & I hope you have a great runner.

Barry

 

[Swifty]

A little bit more work done inbetween interuptions. I now have an aluminium sub base plate.



Some cylinder mounts and a roughed out fuel tank. Jan made his fuel tank from 2mm sheet, not having any available, I made mine from a solid block and I intend to solder the lid on.



And here is a rough assembly of some of the bits.



Paul.

 

[Swifty]

Here is the finished fuel tank, just need to clean off a bit more of the solder around the 2 tubes.



Paul.

 

[ELM6061]

G'day Paul, been meaning to come on for a look/see and find out how the build is going. Sorry I had to leave in such a hurry the other day. Wish I could have hung around a bit longer, but I am sure you understand.

I am really looking forward to seeing this one come together, as I find the flame licker's very intriguing.

Don't forget to mask up when machining that black stuff.

Eddie