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Hi Jenny, Point me in the direction of the softwear forum please, I'm lost and confused (very easily done these days!!) Chris

+1 to what Jenny wrote, plus, I was at sea and we always lapped in valves using 'coarse', then when a uniform surface was observed used 'fine', carborumdum paste ( a specific number grade was not known to us, just coarse and fine!) again on until a uniform finish was obtained, and then finished...

Agreed. For both drive and electronic ignition unit. Had thought of a drive off the crank pin - saw it used to drive an impeller on the "PIP" 3 cylinder radial, and it's used to drive a sleeve valve gear on the sleeve valve engine I built, but here the crank pin would have to be "extended"...

On my last post "Simples! On mine, the part not fitted exactly on OD but also located against a back face in the mandrel as well' should have read "........the part not only fitted exactly on OD....... Obviously tired and missed that. Thanks radial1951, now you have posted a picture of the...

First bit up is the cam support ring. This started as a piece of 2.25" dia. x 1" HE30 (6082) aluminium, or aloominum as our friends across the pond would say. Actually, I prefer aloominum, only 4 syllables instead of 5 and it rolls off the tongue easier! This was set up in the 4 jaw to run...

All the parts of the engine so far made are really on display in the photos in my first post. So, still to make are pistons, piston rings, gudgeon pins, rockers and their shafts, valves, springs, tappets, push rods, cam followers and the whole cam/gear drive assembly, still a fair bit. That...

Yes, it's a 4 stroke. The inlet is piped to the crankcase and the big tube ahead of the cylinders is the enclosure for the pushrods and cam followers. The lump of aluminium at the base of the tube is already drilled for 2 followers. Initially it will be a glow engine I think, the carby will...

Easy accessibility to one's shed is a valid and serious point. This time of year I can't just wander out to my stand-alone stone built shed and do an hour or less on a bit, too damn cold for that. I have a stove in the corner to light first if I'm to be out there all day, which takes time to...

In March 2014 I purchased this part built engine: I bought it from a friend of a model engineer who sadly had departed for the great shed in the sky and left it as is, part built - what you see is all that's been completed so far. I did ask around on several forums if anyone recognised the...

Jennifer says she has worked almost everyday since last June on her model. Not sure I could do that, too much dedication at the expense of other stuff I have to do, plus all the "Honey do..." items, but mainly because I could never ever get get Exit Visa's for Shed Time every day passed by...

Thanks John, will follow your build with interest, as I have looked at Hemmingway Kits and like the look of the engine for myself to build later. Good luck - and keep the photos pouring in! Chris

Hi - nothing really to do with crankshaft construction but was interested to see on the whole engine drawing there is a pressure lubrication connection. How is this effected? The drawing does not show a collection in the crankcase sump. Chris PS What engine is it, looks interesting!

Just a thought, if you have the plans you could look into maybe "carving it out the solid", with maybe a small redesign here and there to accommodate not having castings. Would get you an engine that was similar is not the same. Provided all the essentials remain the same of course it should...

Greg, if I may say so I think you have made a wise decision! The Kiwi looks like an interesting and as you point out, a proven runner. If it was me I would probably go for air cooled as being the easier, quicker to completion, option as I would see it, plus no water seal problems to worry...

The madmodder thread was really interesting - thanks dieselpilot!

Hi Lohring, yes I have seen this article before too - well worth looking at Greg and if your German is as good as mine worth all the hassle of using Google Translate to read the text! It is an excellent build, very high standard of workmanship, and a very well engineered design. A beautiful...

Hi, don't wish to put a damper on things either, but I have made a sleeve valve glow engine which won't start, not surprising really as there's damn all compression, and that's with me doubling the number of piston rings from the plans and making them bigger. I'm still working on it when I have...

Hi, I have acquired a 3 cyl radial aero engine which is in a part completed condition, but unfortunately the engine did not come with any plans. It would appear to have some similarities with Gerald Smith's Osprey engine. Firstly - Can anyone positively identify the engine, and Secondly -...

Hi Gail, many thanks for the reply - I will try it out! Chris