Home-made 2 cylinder 4 stroke engine. Part 5 - Valves

[@tiagocosta9714]

any updates?? love the project and have subbed! hope to see more :)

[@aaronsowinski1617]

hope he doesnt just suddenly stop posting like some people do. this is very interesting to me and id like to see the completion of this engine

[@TheXSpitfire]

I am still working on getting the casting right. I am so very close, but every time there is a small problem. I am trying to cast using the lost pla method. The print takes 12 hours, then the mould takes another 12. The investment is expensive and in my country we so not have electricity every day all day. BUT I am going to do another casting this week. Expect an update....

[@jacquesdm2382]

TheXSpitfire Are you from South Africa?

[@mj6463]

Lol vid is seven months old, if you are still working on it good luck man, I would love to see it finished!

[@Alessandro-dz3cw]

is he okay, its been a while now

[@rcwallbanger]

@@jacquesdm2382 Must be from south africa. the motorcycle in the background has a cw registration which is worcester in the western cape. while traveling for steel you can also see cape town in the back ground

[@w_callaghan8300]

every now and then youtube recommends something good. i hope your project is going well!

[@eliezerpaulino4013]

Hi, i'm Brazilian, please do'nt give up this project, i like this, good work, i wanna see running, As we say in Brazil "Salve"

[@TheXSpitfire]

Hey Eliezer, I have not given up at all and is burning to return to this project. With the situation in the world, I had to pause the project and work much more, so there has not been time to play. My dad spent some time building a enclosure for the NC machine and we are testing tomorrow. THEN ITS GO TIME !

[@eliezerpaulino4013]

👏👏👏

[@eliezerpaulino4013]

@@TheXSpitfire make a video of the machine, do not limit yourself to the manufacture of the engine, any content in this area that you do will be well accepted by me and your subscribers

[@Picalzz]

Not often do I come across a fellow Capetonian! Especially in this category, Good work man!

[@liamr974]

Even if you can't cast a block find an an engine machine every part continue this build. When you master casting. Upload a video on how to cast an engine block. I've been waiting to see someone build an engine from scratch it will blow your channel up I'm certain!!!

[@skoiceland7863]

love youre videos i cant wait to see when this engine is ready!!!!!! its going to be sick!!!! hope every thing work out!!! keep up the frikking awsome work.

[@VladislaV-]

Dont Stop man please

[@chrisbryant7971]

Where are the rest of the vlogs?

[@ILHAM-oe5bo]

Part 6 build crankshaft and enggine block!

[@muhammadilham2775]

kzbin.info/door/XKLQmtm5UBVF79X6oiYL4w

[@zaidprisyanto4024]

Next???

[@andrejmalik5596]

Man please record more i am dying to se this run pls dont loose hope

[@michaeljosop9871]

Still waiting

[@wedkarzkosma]

keep doing this videos!

[@CMBProjects]

Good work!

[@geirkleven3936]

Keep up the good work, you are about to be huge youtuber, your videos are great, just found you, this is just like watching Jonny90q

[@eliezerpaulino4013]

I watch johnny q90. I'm Brazilian, like videos of engine fabrication (Sorry for errors, i really need learn more of english)

[@user-de1cf6wr6v]

Жаль что нет видео, мало кто делает Мини ДВС!и ещё меньше рабочие варианты.лайк с меня.

[@cristianpopescu78]

I' ll try to make the ventils from screws,stainless.

[@ThoBar93]

Your project looks very impressing i hope you're making good progress. I also commented another video from you because i also want to machine an engine so so bad :D Where did you get the technical drawings from? Did you make them or from some where else? Do you have a complete Set for this engine? :D I'm doing an apprenticeship to become a precision mechaninc and this would be a really nice project to machine. I know many questions and propably i'm annoying you sorry for that :D Hope to see more of your Project soon.

[@cengizerencansz8229]

Can you make a motorcycle engine, Keep up to good work

[@ILHAM-oe5bo]

Enggine very good👍

[@jeyseychelles1370]

To reduce backlash you should tighten the scew in the handle And for the lower oil ring you could had try cuting in on the cnc like driling a lot of small holes in the cast iron and when you cut it the remaining would be humped like the ring and when facing the tool should be at an angle just like when turning

[@damageplan420]

Use a taller pouring sprue. You need the weight of the molten aluminum to help fill the mold. Watch MYFORDBOY on yt

[@renzomagnoni4434]

Very good job!!!!

[@liamr974]

Don't give up 👍👍👍👍

[@Dymitr_Nawrocki]

Finally some progress, now when you saw that this lathe can turn steel you could make gudgeon pins out of steel instead aluminum. How's the head casting going?

[@TheXSpitfire]

You were right about the machine and steel. I will be replacing the gudgeon pins with steel ones. Learning a lot

[@muhammadilham2775]

kzbin.info/door/XKLQmtm5UBVF79X6oiYL4w

[@nlo114]

06:55 - Please find out why your tool-post moves when you take a cut, and fix it. You will be very pleased with the result! I suggest lifting the tool-clamp block to check for trapped swarf, or a distorted mating-face to the compound slide.

[@TheXSpitfire]

I have stripped the the lathe, cleaned it and tried to tighten the gibs when I bought it. It really is "you get what you pay for" with the cheaper mini lathes. But I have since learned a bit more and will redo the setup.

[@misterhash9329]

Please don't stop making the engine :/

[@ungnhanvaoprofilecuatoi2191]

have you got any updates yet? I really care about engine parts machining

[@Dymitr_Nawrocki]

Did you abandon this project? If yes, i totaly understand i abandoned some projects myself but it would be nice if you would post some videos of stuff you're working on in workshop. Don't let this small fail stop you. But if you're still working on the project what's current state of it and if you need any help just ask i will be happy to help.

[@TheXSpitfire]

Hi Dymitr, I am still hoping to finish it. With the global lock-down I could not make any progress and none of the materials or tools I ordered arrived yet. My country is also still under strict lock-down. I am hoping to to make some silicone gaskets so that I can do a vacuum casting of the head using investment. Holding thumbs to continue soon.

[@vikaspatil3763]

@@TheXSpitfire Which country are you from?

[@thegreatoutdoors7610]

Been a while

[@2011metalmaniac]

very good subbed

[@ansgarc.2302]

Try more rpm and feed... then it will work better and the surface will be shine

[@kubaxd25]

Awsome!

[@Martin-zo8lz]

First of all, thank you so much for sharing this phenomenal series with us, but I am curious as to the surface finish on the inside of the sleves and the outside of the piston rings in therms of friction, do you think it is possible to build a smaller engine than yours and have it turn over with just a lathe finish and I would also be interrested on how tight tollerances you are manifacturing the key parts. Thank you so much in advance. Sincerely, Me

[@TheXSpitfire]

Thank you for your kind comment. I am sure it will be possible have a smaller engine, the only reason this one is 25cc per cylinder is to fit the two valves in the bore. I was not too sure about turning steel on my mini lathe when I started, but now realize it could have been a lot smaller. For the sleeve and rings, I turned them with as smooth as a finish I could and then used emery paper to finish. I expect poor compression at first, but as the rings and sleeves interact, I am hoping that the cast iron will seed itself. Once the lockdown is lifted in my country I will be picking up some speed to finish this, also wonder if it will work :). Keep well Matrin.

[@gallupcustomknives2293]

Very cool! You reduced the valve ‘shank’ in an attempt to increase airflow? That guide looks quite loose to me, but maybe you can incorporate an oil seal at the top also, like modern bikes and cars use?

[@TheXSpitfire]

Spot on! I was hoping it would increase airflow. I could only get 6mm bearings, but wanted 4mm shanks. The guides are self lubricanted and a fairly tight fit, as close tolerance as I can do with with my knowledge and machine. Not too sure what will happen when they heat up....

[@gallupcustomknives2293]

I can’t wait to see your cylinder head design!

[@mostwanted33986]

Why did you make a 2 diameter shaft ? You need the valves to seat tight in the holes! You can make the lower diameter larger than the upper one it will work but still doesn’t make any sense

[@nishithpshetty]

can u give me the plans of this engine plsssss.

[@esanelavarasan487]

Engine god!!!

[@kevinapollo2906]

H, I have a new engine concept. can you help me build it

[@alexgear9372]

Where did you goooooo

[@TheXSpitfire]

Hey Bepis Pebsi, I have not been able to work on this since my country went into lockdown. But I am going to start up soon again.

[@mechcntr7185]

Why was this project stopped? Did you encounter a problem and just give up? Fails make some of the best videos. Get back to it please. Don't set your expectations so high, just making a working engine.

[@harrylenon9594]

A working engine isn't high expectations? I think that even getting it to work would be pretty damn impressive

[@kilome24]

does not continue with the project I stayed halfway in the construction

[@TheXSpitfire]

Hey Carlos, I am sorry for the delay. Things have been tough going, like for a lot of people. But I hope to soon continue

[@kilome24]

Thank you, I hope it's nothing serious I'll wait calmly Greetings

[@NOONE-hp8bw]

Any progress

[@TheXSpitfire]

Hi Ben. With lockdown and very strict rules in my country, I have not been able to get any materials or tools to continue. I ordered a few things that I need like the electronics for fuel injection, bits for the lathe ect. Its still not arrived 5 months later. Keep an eye out for the next video

[@vansaryo5606]

where the rest man?

[@TheXSpitfire]

I am going to pick up very soon. With the lock down, it was impossible to make any progress. We are still under lock down in my country, but I see places started to open again.

[@baby-sharkgto4902]

I find it disgusting and disturbing that those bronze bushings are pregnant at such a young age. Makes me sick.

[@Tommysmess]

Did you give up on this project man

[@Dreamer3K]

why toooooo mmuuch uch bback llaassh

[@TheXSpitfire]

Super cheap mini lathe is all I can say. I have learned some new stuff that will help.

[@rizky6449]

Wkwkwkwk... Gak diterusin