Glow engine

[minh-thanh]

I'm starting the glow engine
I have a question, With a beginner: Should do engine with contra piston or with Glow plug hot ??
Thanks !

 

[lohring]

Glow plug engines are a lot easier to operate. Their fuel is also easier to get and/or mix. I would start with a proven, simple design.

Lohring Miller

 

[WOB]

For a beginner, you have a much better chance of success with a glow-plug. Diesels require a very good piston to cylinder fit that can only be achieved by lapping. The process is exacting and time consuming, requiring tools that most beginners don't have in their shops. See this page to get an idea of what's required: http://adriansmodelaeroengines.com/catalog/main.php?cat_id=178

WOB

 

[minh-thanh]

Thanks Lohring Miller , WOB !
And WOB , thank you for sharing, i learned something in this link.

 

[lohring]

Do you have a design in mind? Two strokes can be very simple and still perform well.

Lohring Miller

 

[minh-thanh]

Do you have a design in mind? Two strokes can be very simple and still perform well.

Lohring Miller

Thanks for your question.
Yes , i have a design in mind .
I will do the plan in this thread
https://www.homemodelenginemachinist.com/threads/mp-3-2cc-glow-engine.26858/#post-294448
But I will change some details to fit the way I do it.

 

[lohring]

That's an excellent beginners design that should have reasonable power. The iron piston in a steel sleeve works very well when built as described. If you want to run it in a radio controlled vehicle, there are standard carburetors that can be substituted for the intake with minor modifications. By the way, glow plugs use a 1/4-32 tap. That should be easy to get on line. If not, I have extras

Lohring Miller

 

[minh-thanh]

Lohring Miller !
"" there are standard carburetors that can be substituted for the intake with minor modifications."" : I'm learning about how it works.
"" If not, I have extras "" If you talk about those plans of engine, that's great !!

 

[lohring]

A carburetor like this from ASP should work well. Do you need a 1/4-32 tap?

Lohring Miller

 

[Keith whiddett]

Hi I am considering building this engine, is it possible to move the hole for the Venturi towards the front about 4 mm to make room for a throttle carburettor? I am asking because I was thinking it might weaken the crankshaft so the transfer hole would be that much longer. Many thanks for the design,I will post here when finished but that might be a few months

 

[lohring]

I would angle the carb forward and try to keep the crankcase hole in the same position.

Lohring Miller

 

[kf2qd]

Don't go to small on your first one. A slightly larger engine is a bit more tolerant on tolerances. You might take a look at the .60 size 2 stroke that I loaded to the download section a few years back.

Okay, now that I look around, where did the downloads go??? Or is it me???

If you would like a copy I can email you one. DWG or PDF?

 

[Cogsy]

Don't go to small on your first one. A slightly larger engine is a bit more tolerant on tolerances. You might take a look at the .60 size 2 stroke that I loaded to the download section a few years back.

Okay, now that I look around, where did the downloads go??? Or is it me???

The downloads are now threads found under the 'Engines and Downloads' section of the forum - LINK. I did a quick search for your uploads and this is what shows up - LINK.

 

[minh-thanh]

Hi lohring !
I have answered you, but it goes away - maybe I forgot to send! I'm sorry
With 1 / 4-32 tap: I bought it
With link for carburetor: I will buy it when the engine runs

Hi kf2qd ! All information is good for me. If you can, send me the link or copy DWG and PDF , or one file PDF .
Thanks

 

[Keith whiddett]

Don't go to small on your first one. A slightly larger engine is a bit more tolerant on tolerances. You might take a look at the .60 size 2 stroke that I loaded to the download section a few years back.

Okay, now that I look around, where did the downloads go??? Or is it me???

If you would like a copy I can email you one. DWG or PDF?

If you could send p d f on the 10cc engine would be great. k.j.whiddett@gmail.com

 

[Keith whiddett]

If you could send p d f on 10cc engine would be great to k.j.whiddett@gmail.com. Many thanks

 

[minh-thanh]

.. nothing ...
I decided with the plan : https://www.homemodelenginemachinist.com/threads/mp-3-2cc-glow-engine.26858/#post-294448
With some modify

 

[WOB]

If you could send p d f on 10cc engine would be great to k.j.whiddett@gmail.com. Many thanks

Keith you might like this one: http://modelenginenews.altervista.org/mecd/3584.img.html#521
Castings are available at http://www.hemingwaykits.com/acatalog/Jones_605___Colin_Jones.html

I built it a few years ago, and it is a screamer. Powerful and loud.

WOB

 

[Keith whiddett]

Have made a start, bucket full of swarf later!!!

 

[Keith whiddett]

Keith you might like this one: http://modelenginenews.altervista.org/mecd/3584.img.html#521
Castings are available at http://www.hemingwaykits.com/acatalog/Jones_605___Colin_Jones.html

I built it a few years ago, and it is a screamer. Powerful and loud.

WOB

Hi thanks for the info, perhaps my next engine