- Joined
- Mar 22, 2013
- Messages
- 215
Gentlemen,
This is the completion of an engine that I started over a 1-1/2 years ago. I has posted the complete build log on the other forum before this one was started. For those who aren't familiar with this build or for those who followed it on the other forum I have finally made some progress with getting it running.
I had purchased a 12 inch 3 blade propeller (plastic) not knowing what the engine would do with it. In my initial running I found out that the prop didn't have nearly enough mass to allow the engine to idle or at least have some semblance of an idle so late last year I machined up a flywheel that I had with hopes that it would allow me to make adjustments especially with the carburetion. I got the flywheel fitted but it was so late in the year that I really didn't want to spend time in the cold, closed garage experimenting so it would have to wait until the weather changed in this part of the world.
Well the nice weather is here and it was time to pull the radial out and see if all the hours of redesign were worth it.
Although the engine is fully oiled with a pressure system I used a little of my left over premix gasoline from the snow blower to to make sure all the new parts were well oiled. The engine started almost instantly and after a few runs I had the needle and air bleed adjustments fairly close. Aside from the lower 2 cylinders still spitting oil the engine seems like it can be made to idle a little slower and and it revs quite nicely even with the heavy flywheel. I haven't fooled with the timing yet. It's running around 25 degrees advanced. It has a Hall trigger which is operating an S&S ignition unit. It's running on 86 octane pump gasoline.
gbritnell
http://youtu.be/EyX_GbTmitQ
This is the completion of an engine that I started over a 1-1/2 years ago. I has posted the complete build log on the other forum before this one was started. For those who aren't familiar with this build or for those who followed it on the other forum I have finally made some progress with getting it running.
I had purchased a 12 inch 3 blade propeller (plastic) not knowing what the engine would do with it. In my initial running I found out that the prop didn't have nearly enough mass to allow the engine to idle or at least have some semblance of an idle so late last year I machined up a flywheel that I had with hopes that it would allow me to make adjustments especially with the carburetion. I got the flywheel fitted but it was so late in the year that I really didn't want to spend time in the cold, closed garage experimenting so it would have to wait until the weather changed in this part of the world.
Well the nice weather is here and it was time to pull the radial out and see if all the hours of redesign were worth it.
Although the engine is fully oiled with a pressure system I used a little of my left over premix gasoline from the snow blower to to make sure all the new parts were well oiled. The engine started almost instantly and after a few runs I had the needle and air bleed adjustments fairly close. Aside from the lower 2 cylinders still spitting oil the engine seems like it can be made to idle a little slower and and it revs quite nicely even with the heavy flywheel. I haven't fooled with the timing yet. It's running around 25 degrees advanced. It has a Hall trigger which is operating an S&S ignition unit. It's running on 86 octane pump gasoline.
gbritnell
http://youtu.be/EyX_GbTmitQ