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Final video: the engine smokes a bit because I put oil in the petrol and the oil level is high, the engine is still running in

Some photos of the engine being completed . I installed the new intake manifolds and improved the pick up supports , the engine works better ,in a few days the new video

3) Intake manifolds with different geometry this is the old manifold, inlet hole for carburetor 12 mm the new manifold, tin-welded and sandblasted brass tubes , inlet hole for carburetors 6 or 8 mm

2) Flywheel connected with crankshaft and adjusting screw for adjustable advance , the pick up support can rotate through the two bearings even while the engine is running

Here are the improvements I have planned to make the engine less rough, with a more constant progression from idle to max 1)Aluminum ignition pick up supports with 2 bearings instead of plastic and a single bearing

The first pops The engine works, but some improvements are needed Ignition system: the pick ups are not stable It is necessary to redo the supports, now they are 3D printed in plastic (PLA), I redo them with aluminum The intake manifold ducts are too large, I had designed them for a 12-14 mm...

https://www.homemodelenginemachinist.com/threads/porsche-917-flat-12-engine.32972/post-374923 here Petertha has published 3 tables that can help you

I confirm that electronic ignitions make a lot of electrical noise, not only the GY6 but generally all those for engine models. For example I had a bad experience with the 3D printer, it was printing for over 12 hours, I started my little Demon V8, the printer froze and I had to completely redo...

The coil I am using is for motorcycle, I think it can only work in conjunction with the GY6 electronic ignition Regarding the electronic goniometer it is composed of 2 parts, a rotation sensor and a display I use it for camshaft timing with this procedure: I fix the protractor the protractor to...

Very interesting your analysis, I will take note . in my engine, 2 out of 6 cylinders are in the intake phase at the same time. Let me explain better: one cylinder starts the intake phase while another cylinder is completing the intake phase, this roughly means that 1.3 cylinders are sucking...

Display base with electronic ignitions after painting, primer and top coat

I spent several days doing the tests, ignition and carburetors. Regarding the carburetors I have tried many different sizes, from Venturi 14 mm to Venturi 7.6 mm I thought that for a 26 mm diameter piston and 9 mm valves a large carburetor was needed, at least 11 -14 mm, in fact I learned that...

They are spare parts for Dellorto carburetors https://www.motogiovane.com/cappucci-cavi-carburatori-vhbt-phbh-moto-guzzi-p-1071.html

Ignition , distributor caps with cables and 12 spark plugs I screwed the spark plugs on an aluminum plate, I mounted the distributor caps on the engine and by rotating it with the cordless drill I checked the firing order 1-9-5-12-3-8-6-10-2-7-4-11 Ignition test

Check for piston and valve leaks ,tappet thickness adjustment, valve timing, engine painting Before timing all the cams I checked the air leaks once again with this instrument, it is composed of 2 pressure gauges that measure the difference in pressure between the air inlet and leaks through...

This forum is a valuable source of technical information, experiences, and knowledge from around the world that are fundamental to improving our projects, our hobby. I will take some ideas from your designs for my future model engines. I may have lost some information but I have not seen what...

ok, I understand, you refer to the distributor, in this engine the oil level is very low, the pump sends it through the crankshaft, I don't think it will arrive inside the distributor, if the first tests highlight this problem I will put a small oil seal.

Hi Michael The crankshaft has 2 oil seals at the ends, has 1 axial stop on each side and rotates on bronze bushings, but the bearings should work too, I have already built the Bugatti engine on bearings. About the Hall sensor applied on the CDI, I did some tests on the lathe and it works well...

2 distributors CDI ignition Hall sensor circuit

Ignition, first step For this engine model I prefer to put 2 ignitions, one for the six cylinders on the right, one for the 6 cylinders on the left. If this engine does 3000 rpm (I hope) 36,000 sparks per minute will be needed. I think that dividing the necessary sparks by 2 ignitions will give...