Edwards Radial 5 Build

[Foozer]

All I can say is - - Wow - -

 

[petertha]

Hi Petertha - I am using a McDaniels glow plug driver which is contained in a compartment ...The battery you can see in the video is another 4.8v pack which plugs in (as recommended by McDaniel) and acts in parallel with the onboard glow plug battery just to provide extra battery capacity for starting - it is then un-plugged.Cheers Brian

By 'McDaniels', do you mean their pre-packaged 5-cyl glow driver like link? Or do you mean you rigged a multi-plug harness to a more conventional McD glow driver unit + added extra maH capacity pack?

http://www.fishpond.com.au/Toys/On-Board-Glow-Driver-System5C-McDaniel-RC-Electronics/0716416247518

 

[Brian-in-Oz]

Hi Petertha - it is the dedicated five cylinder one purchased direct from Sonictronics. Hank at Sonictronics was extremely helpful in explaining the system and how it worked before I made the decision to buy. It works exactly as he explained.

Cheers Brian ;D

 

[petertha]

Thanks. Now I'm glad I asked. I didn't even know these beasts were offered.
http://www.sonictronics.com/xcart/home.php?cat=308

I've heard of do-it-yourself circuits floating around that a
accomplish something similar (what looks like high speed voltage switching among plugs), but the price seems reasonable to me for multi-cylinder plug & play box.

They are every insistent about 4.8v Ni* round cell technology which is a bit unfortunate with all the cheap & high maH capacity Lipo's out there, but it is what it is. 4.8v puts it right in the middle of too-low 1S-3.7v & too-high 2S-7.4v lipo. There's probably a workaround, but Ni cells are still kicking around.

 

[gus]

Hi Brian,

Great engine.
Gus dreaming about building this superb radial engine. Evaluating my current skill level and patience to check I can qualify to build this engine. Meanwhile will buy the plans to drool and dream at. Please advise plan source.After the current Howell V-2,may take a peek at V-4 plans.
You are my hero!!!th_wav

 

[petertha]

Meanwhile will buy the plans to drool and dream at. Please advise plan source.

You don't have to buy the plans Gus. They are available for free (legitimately) to download as PDF. I got mine from Yahoo Groups R&R (radial & rotary) which, I believe has the latest revision# (A08a). You do have to join or subscribe to the Group to grab them, but there is no cost to that either. Maybe someone knows of a similar alternative resource, but if you are stuck we can probably upload somewhere accessible. Its 2.04MB in size. They are drawn by Robert Sigler in 2D, but my understanding was 'proved out' in 3D cad.

https://groups.yahoo.com/neo/groups/R_and_R_engines/info

 

[Brian-in-Oz]

Hi Gus - first time in my whole life I have been anyones hero but thank you for your comments and interest. If you have any problem sourcing the Edwards plans as described by Petertha let me know and I will email them to you or post a memory stick with the plans (no charge). I am currently in New Zealand (no, not Marlin fishing) and will be back home in Oz. on July 7th. The plans are on my home computer not on the laptop I travel with.

Cheers Brian :idea:

 

[Brian-in-Oz]

Hi to anyone still reading this post.

I have now started the Edwards many times and consider it "run in".
No longer mixing any oil with the fuel and is running nice without spewing any oil out of the exhausts messing up my running bench.

Current project is a cam grinder with future engine (s) in mind. This is pretty much a do as I go project but if anyone is interested I could start a post.

Cheers all and keep those projects rolling along.Thm:

 

[Buchanan]

Yes I have been following your thread all along, very pleased for you thar it runs so well.

 

[michael-au]

I would like to see a build log for a cam grinder
It is something I am interested in building as well

Thank you
Michael

 

[Maxine]

Great build log. Thanks for posting!

 

[Brian-in-Oz]

Many thanks to all who showed interest and made comments and suggestions during the building of my Forest Edwards Radial and to Buchanan, Michael-au and Maxine for their recent posts.
Particular thanks to LADmachining for starting this thread and I apologise for jumping in on it. At the time I was brand new to HMEM and somewhat ignorant of protocol.
And to Michael in Hawaii also building a Edwards Radial for extending such wonderful hospitality when we visited in late 2014. Several hours was spent in his immaculate workshop discussing different aspects of an Edwards build over a few cans of the local nectar.
Now it is time to move on to another project and I will start a new thread under the title of Cam Grinder on The Go as the design is mostly in my head and I will be sourcing bits and pieces as I go along.

Cheers and thanks for the support. th_wav

 

[daddio]

do you have any pics of the valve assembly? What material did you use to make the guides/seats?

 

[Stieglitz]

Hi Anthony, Thanks again for the photo updates,looking forward to completion and runup.
Cheers
Allen.

 

[Brian-in-Oz]

Hi Daddio - valve seats are cut directly in 7075 aluminium heads and valve guides are phosphor bronze.
Page 8 of build has pics of valve guides.
Page 14 & 15 valve seats and valve seat cutter.
Page 17 head and valve assembly.
Cheers Brian :thumbup:

 

[hammerhead2825]

Hi all I'm looking for an appropriate carburetor for my Edwards 5 radial that I'm building. Brian's thread mentioned a Perry 2100, but I cannot find one. I think that model was discontinued. Any help is greatly appreciated. Ken

 

[mayhugh1]

Hi,
Check here:

http://www.perrypumps.com/prod01.htm#super

It's listed in the top application chart.
Terry

 

[Brian-in-Oz]

Hi Ken,
when I discovered that the Perry # 302 or #205 listed in the Edwards plans were no longer available I emailed Gary Connelly at Perry Carbs. and described the engine I wanted to use it on and he recommended the Perry 2100. Gary was extremely helpful and within a couple of hours emailed back and said it was on its way to Australia and I received it in a few days. In my experience this carby has proved ideal for the Edwards Radial.
As Terry says the 2100 is in fact still listed.
Good luck with the Edwards - it is a very satisfying project.

Cheers Brian:thumbup:

 

[hammerhead2825]

Thank you Terry, I've been following your threads on the T-18 and Merlin engines. Beautiful work on both! You sir are a master craftsman!

 

[hammerhead2825]

Thank you Brian; Have you started any more projects since the beautiful Edwards 5? So far I've got the majority of the main engine done from the crank to the rockers. Started on the intake /exhaust tubes this weekend. The tube bender works well. I copied yours and added a round rolling die as the follower. The Woods metal works amazing, I never even knew this existed. Just place in boiling water and presto! Thank you for all your helpful tips, someday I'll work up the nerve to try the piston rings. Ken
P.S. I'd send pics of my progress if I could figure out how.