5 cylinder Radial Engine

[rdean]

Back from my cruise and ready to get back in the shop. Having plenty of time to think on the build I decided not to have an oiling system. This engine will never be on an airplane or ran for more than 5 minutes at a time. I do need a way to eisiely oil the engine components.
I didn't like the rear cover so I made a new one with access slots so I could get to all the places that need oiling including the timing gears.


I also made it a little larger so the bolt holes would line up without washers.



Motor mounts will be changed to allow for more room at the rear of the engine.
Maybe tomorrow.

Thanks for looking
Ray

 

[Firstram]

That's a good solution, I like that the internals will be visible!

 

[rdean]

I made some new engine supports that are longer and shaped to make a larger area in the rear of the engine. There are many things that will go in to that space so why not get some extra room.
It looks like something NASA would shoot into space. (not intentional)


And the bottom view.


Thanks for looking
Ray

 

[DavidR8]

Japan called, they are looking for their lunar lander
Looks good!

 

[rdean]

Now that's funny David!

Not much progress today as these took for ever to make and just one picture.

I made and installed some more brackets and started work on the side plates.


Thanks for looking
Ray

 

[rdean]

You may be wondering why I am making mounting brackets now and not working on some other more important part. Well I just got tired of chasing the engine across the work bench. No matter how you try to hold it it turns and twists away from you.
I think this will tame the slippery beast and still allow me access to all the parts.


The back is wide open.


Other side.


This will be mounted on a nice cedar board that I have.

Thanks for looking
Ray

 

[Chris Hamel]

Looks good

 

[rwm]

That is looking phenomenal! Are you working from plans or shooting from the hip?

 

[rdean]

Robert I do have a set of plans but just use them as a reference and usually end up doing it my way.

Some pictures of the engine mounted on the cedar board.






Now the board comes off for finishing.

Thanks for looking
Ray

 

[rdean]

I took the board off and proceeded to install 4 rubber feet. Now I know that cedar is brittle and prone to spiting but I just pushed ahead and tried to put in a screw. Yup the whole side split off about 6" long so I will make a new base from poplar.

This engine will have CDI ignition and needs a magnet hub for the six magnets to mount to. First I milled a key way in the crankshaft for the hub to index on.



Then I made a blank hub for the magnets to mount on about 1/2" wide with a slot to match the crank key.
Put it all together to check for fit. When the ignition parts come in I will mill holes for the magnets in this hub. This will set the course ignition timing for the engine and moving a slotted hall sensor will be the fine adjustment.



My propeller came in a few days back and I couldn't help my self but make a spinner for the engine to see how it all looked.



This is how it turned out.


And a closeup.


Thanks for looking
Ray