Engine K&B 0.049

The red/white tank is correct, toward the end of production K&B had more red backplates and used them up.

Neat video, the early versions had a really flimsy, thin plastic reed, while the later ones were more like Cox reedies, i'm guessing this was the later.

balogh wrote:Mauricio,

Mecoa of USA seems to have K&B glow heads on stock:http://www.mecoa.com/acc/glowplug/glowplug.htm

Good luck, András.

The K&B 049 engines are evaluated here.

1.Stallion: http://www.sceptreflight.com/Model%20Engine%20Tests/K&B%20Stallion%20.049.html
2. Tornado: http://www.sceptreflight.com/Model%20Engine%20Tests/K&B%20Tornado%20.049.html

I believe a 6x4 may over-prop this engine, I would put that prop rather on a TD049 that is more powerful, if not on an even larger engine.

In my humble opinion - as described in my other post, "Standard glow plugs..." today - the standard glow plug conversion reduces the power of small engines, so you may want to buy a genuine K&B glow head from Mecoa for the original engine power restoration.

Friend András, thank you for this great contribution, I am going to give this information to my friend, to see if you want to take care of these original glow plug. My friend is already happy to see this engine running, since it was a bit sad to check that the glow plug that came to the engine were burned. It really is a beautiful engine, easy to start and very good gear, I will share with you photos if my friend installs it in some model.
A big hug for you!

Oldenginerod wrote:Mauricio.
This engine will benefit greatly from using Nitro.  You mentioned only mixing Methanol & Castor oil.  They should use the same type of fuel as a Cox engine.
Also, while the fuel tank is from an .049 engine the red back plate is from an .060.  Be very careful with the reed valve if you take the engine apart.  They are very unusual and difficult to replace if damaged.  I can remember that there was a previous discussion about swapping the head off another engine.  It may have been a WenMac/Testors head.

Rod.

Hi Rod, thank you very much for the information, it will be interesting to prepare mix with nitro and surely the engine will generate a few more laps.
At this time its maximum was 11850/11880 rpm, bearing in mind that the fuel has no nitro and the glow plug is not original.
I am going to recommend to my friend to be very careful if you disarm the engine, precisely because of the recommendation you give me regarding how delicate it is and difficult to find the flap valve.
Thank you very much!

Mark Boesen wrote:The red/white tank is correct, toward the end of production K&B had more red backplates and used them up.

Neat video, the early versions had a really flimsy, thin plastic reed, while the later ones were more like Cox reedies, i'm guessing this was the later.

Hi, how's it going? So as not to disassemble the engine again, I made this drawing to represent the shape of the valve that this motor has, it's made of copper. Gracias por su información!

Since we are, some time ago I found this engine that is still in its original packaging ..... no, no, no, I do not want to open it!

first version:



Here's the second version:

i'd imagine it would be like making a reed for a Cox only more difficult as you'd have to use a similar material and the opening in the middle would have to be pretty exact. The reed fits under the ring, then the clip.

It is a very interesting design, I am not sure when K&B sold their engines with it included, but also shows how perfectly simple hit the star-berillium reed and its circlip housing in comparison in the COX design, dating back to the late 50-s, were,that outlived many decades.

Before these engines K&B had the "Sky Fury" in various sizes as a single cylinder and an inline two cylinder. I had an inline twin that if I remember correctly was a .15 (two .074's). K&B also had those for boats as inboard or outboard. Anyone remember them?

George

Mark Boesen wrote:first version:



Here's the second version:

Wou !, that if that is complex to replace!

gcb wrote:Before these engines K&B had the "Sky Fury" in various sizes as a single cylinder and an inline two cylinder. I had an inline twin that if I remember correctly was a .15 (two .074's). K&B also had those for boats as inboard or outboard. Anyone remember them?

George

There is a very nice one for sale now

http://www.ebay.com/itm/1955-K-B-Mar-Fury-Twin-12-model-engine-marine-boat-motor-vintage-toy-2-cylinder-/332207391106?hash=item4d591a8182:g:yz8AAOSw~y9ZC~OX

I own the 0.099 twin aero engine and the 0.12 twin outboard. I ran the outboard only once as it was tricky to start with the flywheel so far above the mounting bracket. When I test ran the aero twin I figured I had a real powerhouse on my hands until I realized later that the exhaust note was an octave higher than a single due to the alternate firing arrangement. I used that engine on a twin rotor control line autogyro that I was given back in 1971, but don't recall that it ever got airborne.
It's hard to say how long these engines would last with the poorly supported aft cylinder running in a short aluminum main bearing.
Does anybody know?

Here my friend Diego, finished his model Q-Tee and installed the K & B 0.049 to which adapts the glow plug, I leave some photos.

Congrats to your friend Mauricio, a beautifully finished model

balogh wrote:Congrats to your friend Mauricio, a beautifully finished model

Hello, thank you very much András, I will send your comment to my friend. I hope to make some video of the flight, not yet it flew, yesterday there was a lot of wind around here, so decided to postpone the premiere.
regards!