First Engine No Plans.

[HYTECH]

Remade the piston for two rings and a smaller wrist pin.

 

[HYTECH]

Started on the connecting rod.

 

[HYTECH]

finished the rod and started on the bearing.

 

[HYTECH]

Finished piston/rod assembly, but I will replace those weak machine screws for something stronger for final assembly.

 

[ProdEng]

Amazing project especialy done without drawings. I can make precisely nothing without a drawing! Look forward to hearing it run, the noise should be good.

 

[HYTECH]

Some stuff I do a rough drawing on but nothing like what you are talking about. Things like the crank and cam where it needs to fit I have to draw something out so I know where to stop. Lol

 

[HYTECH]

No shed time lately so looking at pics and vids trying to get inspired. Here is a video of milling the cam lobes. 45 minutes sped up to 7.

http://www.youtube.com/watch?v=480fpHMLGUA&feature=youtu.be

 

[HYTECH]

Here are a couple of pics of the parts I've made so far.

 

[kcudnik]

Very good looking parts! What is your displacement between cams on camshaft ?

 

[gus]

You are my hero. I am tempted to upgrade and make your engine.

Aluminium pistons
Please advise material specs?
How do you obtain the tight push fit required for the gudgeon pin and piston?

 

[rhitee93]

Nice mess-o-parts you have there, now get back to work so we can see it finished!

 

[HYTECH]

Very good looking parts! What is your displacement between cams on camshaft ?

115 DEGREES. I just used specs from here ---> http://www.homemodelenginemachinist.com/f31/holt-camshaft-build-tutorial-5052/

 

[HYTECH]

You are my hero. I am tempted to upgrade and make your engine.

Aluminium pistons
Please advise material specs?
How do you obtain the tight push fit required for the gudgeon pin and piston?

Material? What I have laying around.. Might be a problem but will tackle that when it becomes one.

Piston 6061, cylinder liner is a piece of pipe from hardware store, Rings will be grey iron, crank 12L14, valves and cam drill rod.

For tight push fit pins I use undersize reamers.

 

[HYTECH]

Nice mess-o-parts you have there, now get back to work so we can see it finished!

I WANT TO HEAR IT RUN!!!!!!!!! Can't wait. Thanks for the push..

Jasen

 

[HYTECH]

Finally edited the cam lobe milling video. Might be interesting to some. 45 minutes sped up to 7.

http://m.youtube.com/#/watch?feature=m-ch-vid&v=480fpHMLGUA


(Edit) Sorry I just realized I already posted this vid.

 

[HYTECH]

So... this is a long time coming. Shelved this project for over a decade.... found it again and started tinkering. Its almost ready to run. Ill update with pics later but here is a quick video. I have a few more shorts showing it and will do a video of final assembly and first fire!

 

[GreenTwin]

Wow Jasen, what a blast from the past.

I remember seeing your screen name in 2011, and vaguely recall reading this thread.

What a nice engine build.

Glad to see you getting back to it.
Very nice machining work !

Pat J
.

 

[timo_gross]

So... this is a long time coming. Shelved this project for over a decade.... found it again and started tinkering. Its almost ready to run. Ill update with pics later but here is a quick video. I have a few more shorts showing it and will do a video of final assembly and first fire!

Very inspiring, that those old projects are "re-visited" and not lost. Keep pushing it.

 

[Sparky_SC]

Just looked thru the whole build thread, looks fantastic. Very nice work. I will watch anxiously to see it running.

With the workmanship displayed I have no doubts it will be a great runner.

 

[HYTECH]

Build video and first fire!