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sorry I have never heard of drop box, I’ll look into it

I’m not sure how long the o ring piston rings will last but the ring groove is designed not to put too much pressure on the cylinder wall and let the compression push the o rings out. This way they are only really wearing mostly on the compression and ignition stroke. I have read a few articles...

I think WMB is Warner media group. I have shortened the video to remove the radio from the background hopefully this will be ok. If not I’ll make another video. Rest assured that that I have now made a nice throttle linkage so that I don’t have to reach behind the prop to rev up the engine ☺️. I...

Ohh no!! It seems my video has been banned as the radio was playing in the back ground I don’t have the rights to play that music! I’ll get another video up ASAP

Hey guys, here is my latest engine. I have been working on it for a little over two months in between buying a house and family duties. I promised my self that I would stretch this one out and enjoy the build a little more but once I get going I spend every spare minute in the workshop. My first...

Yes that’s correct, there is also adjustment on the master cam rest to allow for different master cam sizes. As my stone seems quite soft I cut the bulk of waste off the cam with a hacksaw first to minimise the wear. Then they are case hardened cleaned up and set in place on the shaft using the...

Hi thanks for your reply :). Here is a video link that might explain slightly better than I can with words.

Hi, I have hesitated a for a few days on posting this as I feel that compared to a few of the gorgeous cam grinding machines/ jigs that guys here have built mine looks rather shoddy and quite inaccurate. That said it has produced some satisfactory results for me and the best cams I have produced...

Thank you very much, I really appreciate your time to reply :)

This engine looks lovely, I have built two ic engines now both four stroke. A Single cylinder 8cc and an 18cc 90 degree v twin. I have been learning the principles of the sterling engine and found this thread. I have been looking at building something of a similar size and design to your ones...

Hey I am quite new to the group but spend nights and nights reading through the posts here in ore of what some of the guys on here can produce. They have skills I could only dream of having. I could imagine that having a project win project of the month would be quite an achievement and...

Hi here are a few pictures of of some of the parts/ steps. The cam belt and pulleys were found on eBay, originally i was going to use gears but i thought the belt would add a nice touch and be quieter too. I think they might be for some sort of 3d printer maybe? I know that there were a lot of...

Thanks for all the great comments guys, really means a lot to me. There are no real plans for this as it was all kind of build as I went along with what I had. I had to do one fairly carefully drawing to work out the stroke, cylinder height and rod length and apart from a few rough scratches...

hi here is the second engine I have built. I have only had my lathe and been practicing with it for a year or so. All machining completed on my ml 7 and all made from bar stock. I switched from home built spark plugs to commercially available ngk plugs after having some fouling issues so they...

Hey thanks for all your reply’s, it’s been totally stripped down today to check for wear and do a little tuning. I have now made a new cam shaft with separate cams held In place with locktite and an adjustable cam sprocket so I can tinker with the performance/ exhaust note. The piston ring has...

Thank you very much, since building it i have spent a lot of time on here looking at other peoples engines and feeling very envious at the skills that you guys have. Im very keen so have a go at some sort of twin, maybe something like the hoglet. Id like something that really sounds nice. Mine...

Amazing work, envious of your skills!

Hey thanks for your replies, yes it runs ok. I’d say not bad considering how little planning went into building it. I know I could do with having another go at a cam shaft for it as the valves don’t quite have any overlap. Here’s a video after I had a go at making a carburettor. I think the bore...

Hi, i am a 30 year old motorcycle technician from the UK. Whilst on holiday and spending some time bobbing around on an inflatable i came up with the idea that i would like to have a go at building a running engine from scratch. I imagined i probably had most of the materials i would need...