"The engine was made roughly and quickly".............proceeds to show a photo of a high quality engine that is world class! I'm hoping to make a a V8 of similar size to yours. You are an inspiration and are leading the way in scaled engines that sound and perform like the real thing - well done.
Thank you for your kind words. Actually it took me more time to modify carburators than the engine making itself. Very happy with the result now but i got frustrated many times along the way.
@@evangelospaschaloudis1042 - am I correct in thinking you made the valve springs yourself or if not do you have a link to purchase your ones? I've bought some 50cc scooter springs, there is an inner and outer spring, which seems quite a lot stiffer compared to yours and I'm wondering whether might be too much. Also, do you have a link to your pistons and cylinder liners you used (if you don't mind sharing). Cheers, James
@@jamesellery6866 Pistons are from a Honda GX 35 but modified in a few ways . Valve springs i made them. They are from 1.1mm stainless steel wire, 13mm OD, 4mm pitch, 20mm length, heat treated. I have tried 1mm wire (too weak for a good valve sealing) and 1.2mm wire (unnecessarily strong). Piston liners i made them from steel then i had them nitrided.
Hi @@evangelospaschaloudis1042, I've progressed with my engine with just a single cylinder version and got it running (ish), however I'm having a lot of trouble with the carburettor setup. At the moment I'm using a PZ19 carburettor, which is meant for a 50 to 110cc motorbike engine, which has 19mm bore for the intake. I can only really get it running with almost full choke and whenever I open the choke it dies. Did you ever try a motorbike style carb like the PZ19? What bore or model number is your carb - do you have an OS carb you could recommend? I noted you also use small diameter piping for the intake, do you think this helps with low speed idle stability - i.e is 19mm bore too wide? Your apprentice, James
Beautiful engine Evangelos, music to my ears. Great work! What does the engine use for lubrication as you mentioned it has no oil added to the gas, wet sump?
Hey that is a very nice engine! Did you use any stock parts for internals such as pistons, valves conrods or similar? Nevertheless it mus have been a lot of work machining all these parts in this perfect quality. Looks quite professionally made and finished!
I know this is a test-base engine, but did this machine end up being a single-pin crankshaft design? And does it fire both spark plugs at the same time whether they're on the exhaust or power stroke? If so, you may have built something strikingly similar to Harley-Davidson motorcycle engines haha
It is a single pin crankshaft therefore cannot fire both cylinders at the same time. Yes it fires every time the piston is at TDC but only to have the correct readings on the tachometer. It works the same with the firing only at the power stroke. Typical Harleys are a lot different to my design.
"The engine was made roughly and quickly".............proceeds to show a photo of a high quality engine that is world class!
I'm hoping to make a a V8 of similar size to yours. You are an inspiration and are leading the way in scaled engines that sound and perform like the real thing - well done.
Thank you for your kind words. Actually it took me more time to modify carburators than the engine making itself. Very happy with the result now but i got frustrated many times along the way.
@@evangelospaschaloudis1042 - am I correct in thinking you made the valve springs yourself or if not do you have a link to purchase your ones? I've bought some 50cc scooter springs, there is an inner and outer spring, which seems quite a lot stiffer compared to yours and I'm wondering whether might be too much. Also, do you have a link to your pistons and cylinder liners you used (if you don't mind sharing). Cheers, James
@@jamesellery6866 Pistons are from a Honda GX 35 but modified in a few ways . Valve springs i made them. They are from 1.1mm stainless steel wire, 13mm OD, 4mm pitch, 20mm length, heat treated. I have tried 1mm wire (too weak for a good valve sealing) and 1.2mm wire (unnecessarily strong). Piston liners i made them from steel then i had them nitrided.
Thankyou @@evangelospaschaloudis1042. You are a gentleman!
Hi @@evangelospaschaloudis1042,
I've progressed with my engine with just a single cylinder version and got it running (ish), however I'm having a lot of trouble with the carburettor setup. At the moment I'm using a PZ19 carburettor, which is meant for a 50 to 110cc motorbike engine, which has 19mm bore for the intake. I can only really get it running with almost full choke and whenever I open the choke it dies. Did you ever try a motorbike style carb like the PZ19? What bore or model number is your carb - do you have an OS carb you could recommend? I noted you also use small diameter piping for the intake, do you think this helps with low speed idle stability - i.e is 19mm bore too wide?
Your apprentice,
James
Excellent work!
Congratulations ! Beautiful engine.
Excellent Congratulations!!!
Beautiful.....
Nice work. Like the engine! Be nice to see some construction details.
Thank you. For the actual machining i have no footage.The assembly is similar to my V8 in the link bellow.
th-cam.com/video/JbHOLhATH34/w-d-xo.html
@@evangelospaschaloudis1042 Many thanks I have seen that!
Perfect...
very cool
Beautiful engine Evangelos, music to my ears. Great work! What does the engine use for lubrication as you mentioned it has no oil added to the gas, wet sump?
Thank you. Wet sump it is.
Ωραίος.👍
You gotta do better than that if you want that bench to fly.
so beautiful😍😍😍
Hey that is a very nice engine! Did you use any stock parts for internals such as pistons, valves conrods or similar? Nevertheless it mus have been a lot of work machining all these parts in this perfect quality. Looks quite professionally made and finished!
The pistons are quite modified versions of a well known commercial engine. All other parts are one offs.
I know this is a test-base engine, but did this machine end up being a single-pin crankshaft design? And does it fire both spark plugs at the same time whether they're on the exhaust or power stroke? If so, you may have built something strikingly similar to Harley-Davidson motorcycle engines haha
It is a single pin crankshaft therefore cannot fire both cylinders at the same time. Yes it fires every time the piston is at TDC but only to have the correct readings on the tachometer. It works the same with the firing only at the power stroke. Typical Harleys are a lot different to my design.
Can this be used to power a motorbike? Real one i mean
Yes, it can.
@@evangelospaschaloudis1042 can you please tell me bore x stroke.
@@oldgangster4119 39mm bore , 40mm stroke
@@evangelospaschaloudis1042 thanks