Homebuild petrol engine
05-04-2013, 10:56 AM
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Homebuild petrol engine
Hi , After my first successful engine built , the Owen Mate 2 cc diesel , I will now want to build a petrol engine based on the Alko Super 14 of 1943, I do have some modifications done, I will report regularly on the progress .
To be continued, regards Jef
To be continued, regards Jef
05-04-2013, 11:31 AM
#3
RE: Homebuild petrol engine
why waste your time like that when you could just go buy a real engine and be flying already....and without CNC you'll never get the accuracy you need for that to actually run. bet you're the old school type that actually builds your planes as well?
05-04-2013, 05:21 PM
#4
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RE: Homebuild petrol engine
ORIGINAL: jef-lemmens
More pictures
More pictures
Some folks just don't get that builders build simply for the fun of it. It's especially true in certain types of airplane events. Take pattern for example; nowadays you can BUY EVERYTHING you need to fly a top shelf pattern plane. BUT some of us, very very few, simply choose to design and build our models because it's fun, and we know how!!
05-04-2013, 07:00 PM
#6
Senior Member
RE: Homebuild petrol engine
Zagnut,while I'm a big fan of CNCmachining, I've my own mill and am in the process of making my lathe conversion, you do have to be an accomplished machinest in order to do accurate CNC machining. That skill is learned by cranking handles amd learning how to take measurements, sharpen tool bits, and setup your machine. CNC just makes it easier to make a hundred vs making one.
Jef, great work. I alwaysenjoy looking at work done by someone much more skilled than myself. Keep the photos comming.
Don
Jef, great work. I alwaysenjoy looking at work done by someone much more skilled than myself. Keep the photos comming.
Don
05-05-2013, 01:01 AM
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RE: Homebuild petrol engine
ORIGINAL: ZAGNUT
why waste your time like that when you could just go buy a real engine and be flying already....and without CNC you'll never get the accuracy you need for that to actually run. bet you're the old school type that actually builds your planes as well?
why waste your time like that when you could just go buy a real engine and be flying already....and without CNC you'll never get the accuracy you need for that to actually run. bet you're the old school type that actually builds your planes as well?
Regards Jef
05-05-2013, 01:14 AM
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RE: Homebuild petrol engine
For those who are interested in theOwen Mate 2 cc Diesel , there isa construction report on a Dutch forum, it is in Dutch but if there are any questions please feel free to contact me and I will try to answer them
http://www.modelbouwforum.nl/forums/...eselmotor.html
And a Youtube video , it's the first run of the engine and the mixture is far to rich but I don't want the engine to seize up
http://www.youtube.com/watch?v=K_KiLsJgPLA
http://www.modelbouwforum.nl/forums/...eselmotor.html
And a Youtube video , it's the first run of the engine and the mixture is far to rich but I don't want the engine to seize up
http://www.youtube.com/watch?v=K_KiLsJgPLA
05-05-2013, 05:38 AM
#9
RE: Homebuild petrol engine
I really like your engine project there, Do keep us informed of your progress and take lots of pictures. I do think it is really great that you are doing it. I think it is the ultimate form of the hobby to make your own engine, and build the plane to fly it in too.
I think the young people forget that we didn't have computers until relatively recently. But way back in the early days of model airplane flying people had to make their own engines and airplanes too. If you wanted a model airplane engine, you either made it yourself, or found someone to make it for you. They didn't have CNC machines either. It was all done using lathes and milling machines manually. Mass production actually was around long before computers came along. They used to make huge number of all sorts of machined parts without CNC machines many years ago. Now then some model engine companies used to sell casting sets to help a modeller make their engines at the time. Other companies would only sell the plans to make a engine though.
Of course the ultimate was those few homemade engines that had hand filed crankcases. There were even some guys who made engines and after machining the crankcase, they bead blasted or sand blasted the crankcase to give it a look as though it was made from a casting.
I think the young people forget that we didn't have computers until relatively recently. But way back in the early days of model airplane flying people had to make their own engines and airplanes too. If you wanted a model airplane engine, you either made it yourself, or found someone to make it for you. They didn't have CNC machines either. It was all done using lathes and milling machines manually. Mass production actually was around long before computers came along. They used to make huge number of all sorts of machined parts without CNC machines many years ago. Now then some model engine companies used to sell casting sets to help a modeller make their engines at the time. Other companies would only sell the plans to make a engine though.
Of course the ultimate was those few homemade engines that had hand filed crankcases. There were even some guys who made engines and after machining the crankcase, they bead blasted or sand blasted the crankcase to give it a look as though it was made from a casting.
05-05-2013, 05:53 AM
#10
RE: Homebuild petrol engine
ORIGINAL: MTK
Great project Jef....I get why you are doing your own thing.....
Some folks just don't get that builders build simply for the fun of it. It's especially true in certain types of airplane events. Take pattern for example; nowadays you can BUY EVERYTHING you need to fly a top shelf pattern plane. BUT some of us, very very few, simply choose to design and build our models because it's fun, and we know how!!
ORIGINAL: jef-lemmens
More pictures
More pictures
Some folks just don't get that builders build simply for the fun of it. It's especially true in certain types of airplane events. Take pattern for example; nowadays you can BUY EVERYTHING you need to fly a top shelf pattern plane. BUT some of us, very very few, simply choose to design and build our models because it's fun, and we know how!!
05-05-2013, 07:25 AM
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RE: Homebuild petrol engine
Jef, I just wish I lived close to you so that I could maybe just sit in a corner and watch your work and dream of how neat it would be if I had the know how to what you are doing. I for one think it is great and since I don't have the nearness of on-hand observations I'll sit here wishing I had your skills and watch. Thanks for the post and the experience of watching the work of a true machinist.
Owen
05-05-2013, 10:45 AM
#18
RE: Homebuild petrol engine
you guys are way too easy....just thought i'd post up some of the stuff i hear on a regular basis from the type of people i deal with day to day....i would love to build an complete engine from scratch and even have a few ideas in my head and on paper but time is kinda hard to find. but i do pretty much fly with engines i convert from garden equipment. this is my latest which is based on husky 61cc saw parts. still haven't found the time to make the carb and mount the prop to run it up:
and it was all done on a manual bridgeport...
of course i also build all my planes from scratch and because i don't like any of the radios on the market i had to do that myself as well:
so yes Jef, i would LOVE to see more of your work along with any tips you may have concerning various techniques you used.
