Cox Engines Forum
You are not logged in! Please login or register.

Logged in members see NO ADVERTISEMENTS!


Friend gave me Two Spark Ignition Engines -- Converted Cox_ba12




Friend gave me Two Spark Ignition Engines -- Converted Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Carl Goldberg Shoestring
by NEW222 Yesterday at 9:22 pm

» Tank Cleaning and an Old Rant from my Youth
by Ken Cook Yesterday at 8:24 pm

» Designing a Tee Dee RC carb
by dckrsn Yesterday at 6:56 pm

» COX 049 Product Engine '76 - type confirm .
by balogh Yesterday at 5:46 pm

» Home made fuel nipple for COX Tee Dee RC carb
by balogh Yesterday at 3:56 pm

» Contest - Contest - Contest
by Admin Yesterday at 2:42 pm

» COX TeeDee09 RC in flight with the Cosmic Wind
by balogh Yesterday at 12:16 pm

» Fall S.M.A.L.L. Friday
by Kim Yesterday at 10:33 am

» Big Brother
by NEW222 Sat Oct 16, 2021 3:18 pm

» Cox Engine Stories
by rsv1cox Sat Oct 16, 2021 7:39 am

» It's raining Cox engines
by rsv1cox Sat Oct 16, 2021 7:19 am

» Simple Baby Ringmaster build
by MauricioB Sat Oct 16, 2021 12:09 am

Cox Engine of The Month
October-2021
MauricioB's

"Babe Bee .049 r/c"



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Forum Store
CEF Ear Savers
Gallery


Friend gave me Two Spark Ignition Engines -- Converted Empty

Friend gave me Two Spark Ignition Engines -- Converted

Go down

Friend gave me Two Spark Ignition Engines -- Converted Empty Friend gave me Two Spark Ignition Engines -- Converted

Post  sosam117 Tue Sep 28, 2021 5:12 pm

A friend (M. Myers) gave me two spark ignition engines.
He is converting to electric motors for flying and asked me "if" I wanted them?
I said sure. I never tried to run any spark engines but it always thought they were cool?

Well what he sent me was two modified engines that he got from W. Schmidt ( in Kanas).
One is an Arden .099 and the other is a McCoy .098 -- modified for spark ignition.
Friend gave me Two Spark Ignition Engines -- Converted 01_ard10

They are nice looking engines.
I think I need to get an ignition set-up to make them run?
Larry Davidson might be able to help me out on getting electronic ignition?

Next would be the type of fuel to use? Mixture (content and percentages?)
Coleman lantern fuel and 80wt. oil?

How is the electric ignition hooked up to the engines and spark plug?

Little help here please? confused

The McCoy has a tag on it that has some instructions.
One side give the max RPM at 10,200 on an 8x4 prop --- tested January-29-2010
Friend gave me Two Spark Ignition Engines -- Converted 05_mcc10

On the other side of the tag it has RPM (fuel - Gas), Rogers type twr(tmr)?
Keep it oiled!
Needle valve at 1-3/4 out and start and run position of the contact on the engine.
Friend gave me Two Spark Ignition Engines -- Converted 04_mcc10

The Arden .099 has no instructions or hints of any kind?
Friend gave me Two Spark Ignition Engines -- Converted 01_ard11
Friend gave me Two Spark Ignition Engines -- Converted 02_ard10

Photos of just the McCoy .098 engine:
Friend gave me Two Spark Ignition Engines -- Converted 01_mcc13
Friend gave me Two Spark Ignition Engines -- Converted 02_mcc12
Friend gave me Two Spark Ignition Engines -- Converted 03_mcc10


THANKS! Hand Shake  Hand Shake
sosam117
sosam117
Platinum Member
Platinum Member

Posts : 549
Join date : 2016-03-23
Location : Suburb of Chicago, Illinois

Back to top Go down

Friend gave me Two Spark Ignition Engines -- Converted Empty Re: Friend gave me Two Spark Ignition Engines -- Converted

Post  Ken Cook Tue Sep 28, 2021 6:24 pm

Many of my club members run spark ignition. By no means am I a expert on this subject as I only run them on a bench. They fly them, service them, and know all the ins and outs. Floyd Carter might be the person that would help you. He's extremely knowledgeable on any spark ignition engine. He can be found on Stunthangar.  I recently began running sparkers  myself. I have a Larry Davidson setup myself. I personally wouldn't use the old methods as they can be very unreliable. In addition, Larry's being solid state shuts off so the coil isn't energized after the engine stops.  In addition, I use glow fuel when running spark ignition. It runs less on a tank than gas but I prefer it because it's also quieter. You could run gas as some of my members do because they feel it starts easier, I don't believe that as I have used both successfully. My club members that use gas is due to not worrying about the residue eating the paint.
           Gasoline mix is 3:1. Many of them use Coleman fuel and a 2 stroke oil from Walmart which they claim works the best.

            The traditional mix was 70w oil, for low performance engines such as yours, motor oil will suffice. Glow fuel though will work fine assuming you keep the castor content high. The Arden has a enclosed timer housing while the Mccoy doesn't. Personally, my experience is that if I was to run them, I would have Larry's setup. Reason being is that if the Arden starts pushing oil out the nose, it will contaminate the points in a few minutes of running whereas the Mccoy is open. The metallurgy of the Mccoy isn't spectacular. Open point timers will work just fine with a standard 3 volt system whereas the closed timers can benefit from a little higher. I use 3, 1.2 ni-cads on Larry's coil.


Last edited by Ken Cook on Wed Sep 29, 2021 4:01 am; edited 2 times in total
Ken Cook
Ken Cook
Top Poster
Top Poster

Posts : 4508
Join date : 2012-03-27
Location : pennsylvania

Back to top Go down

Friend gave me Two Spark Ignition Engines -- Converted Empty Re: Friend gave me Two Spark Ignition Engines -- Converted

Post  Ken Cook Tue Sep 28, 2021 6:35 pm

Most setups are typical and it's quite simple. This is the setup for Larry's coil. A older system would have a condenser which is slightly different but similar. I don't use the condenser but I'm certain a simple diagram could find out where to install it inline.

The coil has 5 wires from it, a red, a white and the high tension lead and two smaller gauge wires one being black and the other white. The high tension terminal is on the side of the coil and most high tension leads use a heavy gauge lead with cloth insulation and what looks like two small safety pins hooked to the ends without the catch. The wire usually has a piece of shrink tube which acts like a clasp, you slide the shrink tube back and the safety pin opens. One side goes to the plug, the other to the coil terminal.

                The red wire goes to the + on the battery, the white wire goes to the -. The smaller black gauge wire goes to engine ground. The smaller white goes to the 2-56 nut on the point terminal for the points.
Ken Cook
Ken Cook
Top Poster
Top Poster

Posts : 4508
Join date : 2012-03-27
Location : pennsylvania

Back to top Go down

Friend gave me Two Spark Ignition Engines -- Converted Empty Re: Friend gave me Two Spark Ignition Engines -- Converted

Post  sosam117 Wed Sep 29, 2021 7:13 am

@Ken Cook wrote:Most setups are typical and it's quite simple. This is the setup for Larry's coil. A older system would have a condenser which is slightly different but similar. I don't use the condenser but I'm certain a simple diagram could find out where to install it inline.

The coil has 5 wires from it, a red, a white and the high tension lead and two smaller gauge wires one being black and the other white. The high tension terminal is on the side of the coil and most high tension leads use a heavy gauge lead with cloth insulation and what looks like two small safety pins hooked to the ends without the catch. The wire usually has a piece of shrink tube which acts like a clasp, you slide the shrink tube back and the safety pin opens. One side goes to the plug, the other to the coil terminal.

                The red wire goes to the + on the battery, the white wire goes to the -. The smaller black gauge wire goes to engine ground. The smaller white goes to the 2-56 nut on the point terminal for the points.

Thanks for the help Ken.
I also got a lot of help from SAM (Society of Antique Modelers) members (Larry Davidson is a member) on the ignition set up.
Got a few drawings of how to wire it up. Also got fuel mixes. One SAM member is shipping to me a quart of fuel.
Just have to pay for shipping of the fuel.

Contacted Davidson and purchased two ignition systems from him for the engines.
I've know Larry for about 30 years now. Nice guy.

Thanks!
sosam117
sosam117
Platinum Member
Platinum Member

Posts : 549
Join date : 2016-03-23
Location : Suburb of Chicago, Illinois

Back to top Go down

Friend gave me Two Spark Ignition Engines -- Converted Empty Re: Friend gave me Two Spark Ignition Engines -- Converted

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum