Excellent engine. One question: How are you powering it in the video?

very clever now why not build a deltic to put it in

amazing mechanically creation...look incredible

Amazing engine 100/100 :D

Pure mechanical and beautiful stuff!! Excellent!!

THis is coooool !!!!!

Wow, this thing just emanates power! Nice work!

Pure badass.

WOW! That is completely AWESOME! The video helps makes it even cooler.

That would be an interesting project, but not one for me - I'm more into the mechanical side, so everything has to function to the greatest extent possible and I don't think it's possible to build a centrifugal pump that would do the model justice. I think it'd need a detailed build and that technic wouldn't be the best lego for the rest of the truck.

Haha, smoke is one thing I do not want to replicate with lego! I think whatever you saw was probably due to the low quality camera in low light with high compression of the video. Next time it'll have an RPM counter and a flywheel to smooth out power delivery.

Great stuff, I watched a programme about these in the weekend and wondered if they could be built out of Lego, and here it is!

Excellent. How about putting it in FDNY Super Pumper??

Nice!!! Veyron is nothing compared to this.

Brilliant. Was it starting to smoke at the end of that film?

Wow! Awesome engine! >Eric

It sounds great... nice engine noise, and good work with the triangular geometry, which must have been a pain to construct.

Thanks. I plan to make the smaller, 18 cylinder 'Baby Deltic' sometime with transparent cylinders. I'll try to photograph the part inventory and major sub assemblies as the only difference will be the number of cylinders inbetween the end structures.

WOW! Super engine! 36 PISTONS!!! I like how you did it, impressive.

Wow! this is amazing! Can you put some instructions or part list?

Thanks. It is possible to hide a Medium Power Functions Motor inside of the engine to provide the power. It only just fits though, and without space for gearing up, was not going to run the engine fast enough for me.

You're quite right, the actual workings of the engine are quite simple, the tricky bit in Lego was getting the angles right, or rather realising that you can't build a true deltic and then having to make the angles shallower. And after that, getting the drive phased correctly to each crankshaft.

That's... that's actually rather impressive. But where do you put the diesel fuel? ;)

Nice! It's cool that it actually works.

Wow, Looks deceptively simple seeing it, but I guess it took forever to figure out the minute deatils.

Wow, awesome work. Don't you wanna post here a tutorial how to make this awesome thing? :D No i guess :P

Wicked!

very, very impressive!.....you are obviously a very mechanically-minded guy,..... maybe you should be working for Lego, as a designer!