Author Topic: How to best make use of this Testors engine? (Read 3777 times)

Robert McHam · « **on:** September 24, 2009, 04:58:15 PM »

I now have this Testors engine in good shjape yet have no idea how to fuel it or mount it.

Help!

I want to put it on a hollow log or similar.

Robert

Robert McHam · « **Reply #1 on:** September 24, 2009, 06:44:10 PM »

OK. Quick update. I have figured out theentire white plastic part is the fuel tank and there is hole right beside the needle which is the air inlet.

Now how do I mount this sucker?

Robert

LARRY RICE · « **Reply #2 on:** September 24, 2009, 07:07:23 PM »

You could use a wad of chewing gum on the back of it, don't worry it doesn't have enough power to break loose.
That con't be your only engine, can it? These are best used when going fishing if the fish don't throw it back at you.

Yes this all was at your expence. I use to teach very small children how to fly C/L with one of these because (really) it did not have enough power to pull the little testors plane around so the kids would have to whip it to get to fly. It does make noises like an engine but that is about all.
Larry

Larry Renger · « **Reply #3 on:** September 24, 2009, 07:31:16 PM »

Engines like that make excellent office decorations when embedded in clear acrylic plastic.

Jeffrey Olijar · « **Reply #4 on:** September 24, 2009, 11:56:19 PM »

wingtip weight for a full sized stunter?

Alan Hahn · « **Reply #5 on:** September 25, 2009, 08:37:54 AM »

Gee,
That is Jim Renkar's favorite engine!

Clancy Arnold · « **Reply #6 on:** September 25, 2009, 08:41:30 AM »

Bad idea, too much size for the weight.

Quote from: Jeffrey Olijar on September 24, 2009, 11:56:19 PM

wingtip weight for a full sized stunter?

Good idea, after washing in alcohol.

Quote from: Larry Renger on September 24, 2009, 07:31:16 PM

Engines like that make excellent office decorations when embedded in clear acrylic plastic.

Clancy

Robert McHam · « **Reply #7 on:** September 25, 2009, 09:06:11 AM »

I do love you all y'alls ideas. Instead of a fising weight, how bout attaching hooks to it and spraying it with WD40 just before casting? The WD40 trick really does work!

I am determined to get this running and mounted on something that has wings friends!

Robert

LARRY RICE · « **Reply #8 on:** September 25, 2009, 10:40:26 AM »

I am sorry, I should not of picked on you. There two options to mounting this engine that I can see, Pardon my use of the word engine here, one would be to creat a mount on the plane that would allow you to rubber band it on (ala Carl Goldberg) and the other is to realize that this is a throw away engine and epoxy it to a free flight plane.
Larry

Wayne Collier · « **Reply #9 on:** September 25, 2009, 10:44:01 AM »

I think most of the Testor's ready to fly planes clamped the engine between the fuseloge halves. A cleverly designed cowl might accomplish this. I have one old testor's engine that I cannot remember how I got. I glued it to the front of a display model to hold the prop and hung it from the ceiling in may office.

Jeffrey Olijar · « **Reply #10 on:** September 25, 2009, 12:03:40 PM »

or you could make a mounting plate and epoxy it to the back so you could mount it like a normal engine. not sure what you could make it out of though? I think I have the same engine attached to a coroplast (realestate sign) flying wing. I believe that it was epoxyed on.

Robert McHam · « **Reply #11 on:** September 25, 2009, 01:35:43 PM »

Quote by Larry Rice:
"I am sorry, I should not of picked on you. There two options to mounting this engine that I can see, Pardon my use of the word engine here, one would be to creat a mount on the plane that would allow you to rubber band it on (ala Carl Goldberg) and the other is to realize that this is a throw away engine and epoxy it to a free flight plane.
Larry"

Some may take such comments on the chin but I am glad for you and others to take a few cheap shots and have fun! After all this is a hobby and although not allways fun in every aspect, as much fun and enjoyment should be had and poking fun, to me is all part of it. I do welcome yours and all other comments though they may not all be useful, they should hopefully be entertaining!

Quote by Wayne Collier:
"I think most of the Testor's ready to fly planes clamped the engine between the fuseloge halves. A cleverly designed cowl might accomplish this. I have one old testor's engine that I cannot remember how I got. I glued it to the front of a display model to hold the prop and hung it from the ceiling in may office."

Wayne, I really am sure that this was how it was done and the cowl idea is a good possibility. A mold could be made for the top and bottom halves and so on.

Quote by Jeffrey Olijar:
"or you could make a mounting plate and epoxy it to the back so you could mount it like a normal engine."

Jeffrey, This was exactly what I had in mind when I started this thread but I also realize there are others here smarter than I and can maybe supply other methods as well.

And then there is this thread which sheds so much light on this engine. Check out what George Bains says in this thread:
http://stunthanger.com/smf/index.php?topic=12872.0
Note the Tank with the radial mount! This is the only difference in his and mine. Bet there is no real way to get a tank like that these days!

Robert

kenneth cook · « **Reply #12 on:** September 25, 2009, 03:54:30 PM »

I found those engines to actually work quite well if you could get them running. In fact I had some real screamers. I had 3 of them and 2 both broke the crankshaft. I still have the one as pictured. I had 2 in the car models and one in a plane. I remember one of them just giving so many fits I gave up on it. Testors also made a version that looked like it was made from a piece of galvanized pipe. I have to say that was the worst. One thing I've noticed about the engine pictured is that the case is made of a very hard heat resistant plastic. My Mercury Grand Marquis uses what looks to be the same plastic for the intake manifold. I guess we can say they were building the future. Ken

Robert McHam · « **Reply #13 on:** September 25, 2009, 04:39:28 PM »

Indeed Ken, it is and When I first received it, it was locked up tighter than Dick's hatband! However 5 minutes in my little toaster oven at 300 degrees and it turned easily.

Robert

kenneth cook · « **Reply #14 on:** September 26, 2009, 06:10:12 AM »

I'm probably guessing about 1976 my aunt bought me a Testors vw bug that was tethered. The entire chassis, wheels, body, etc. was all plastic. There was a plastic arm that snapped onto the chassis which you tied the line to in order to run it in a circle. I had several other Cox cars and buggies but this Testors version was the hottest of them all. I believe I was using K&B 1000 and this engine eventually handgrenaded. I kept the car for years in thoughts I would find another engine as this one had a flywheel and toothed drive plate. I never did and I just threw it out. I truly regret doing that as now I could of easily pressed the drive washer off and installed it on another engine to use it once again. I have several of the Mccoy Testors variants and if you can get one of these started its about the most anemic engine I've ever run. The engines may have not run the best, but Testors sure made some neat looking stuff. Ken

George · « **Reply #15 on:** September 26, 2009, 06:36:51 PM »

I have one of the "potmetal" versions also. It came in a spaceship type plane in a pusher configuration. The plastic plane was quite heavy and it didn't fly well.

Here is a pic of it and a pic of some with the carbon crankcase. Note that the standalones were packaged in the box bottom up:

George

Jim Thomerson · « **Reply #16 on:** September 27, 2009, 02:35:04 PM »

I had one of the last model Testors 049's like George illustrated. They were intended (at least so I thought) for mouse racing. Fast refill through the square upright tube. I never got mine even to pop and finally gave it away.

George · « **Reply #17 on:** September 27, 2009, 05:38:58 PM »

Jim,

Sorry you had such bad luck with yours. All of mine (not in boxes) have been broken in. They started easily, first try on a couple. I was using 15% NORVEL fuel (with extra castor), supplied prop, and cranked with the rotomatic starter.

George

50+AirYears · « **Reply #18 on:** September 27, 2009, 09:52:08 PM »

After my son got proficient flying his Cox PT, I bought him a Testor's P-51 with one of those engines. Went through about a pint of fuel running it. No matter what I did, it would barely move on the ground, even with Cox Racing (Red Can) fuel. The plane ended up as a target for his Crossman. But, it always started easily and ran out a tank. Just never had enough power to get off the ground

Robert McHam · « **Reply #19 on:** September 27, 2009, 11:22:33 PM »

Quote from: 50+AirYears on September 27, 2009, 09:52:08 PM

After my son got proficient flying his Cox PT, I bought him a Testor's P-51 with one of those engines. Went through about a pint of fuel running it. No matter what I did, it would barely move on the ground, even with Cox Racing (Red Can) fuel. The plane ended up as a target for his Crossman. But, it always started easily and ran out a tank. Just never had enough power to get off the ground

I honestly think it was due to the poor props Testors had.

Robert

George · « **Reply #20 on:** September 28, 2009, 08:33:55 AM »

Quote from: Robert McHam on September 27, 2009, 11:22:33 PM

I honestly think it was due to the poor props Testors had.

Robert

You may have a point. I think we hand launched my son's RTF, and was using about 12' lines. It barely flew. I assumed weight, but since it was in a pusher plane, I didn't try another prop. Engine and prop are shown above.

The pusher prop is 4.25", the black ones that came with the standalone engines are 5.5". Neither are marked so I have no idea what pitches.

George

dankar · « **Reply #21 on:** September 28, 2009, 12:59:36 PM »

You could make a saddle to fit case and some sort of tie down. Maybe a strap. I gave away several of these for free just to get rid of them.

Ebay had some deals on buying several engines at a time. Once in awhile they had one of these in the lot. Gave them away quickly.

Bought a small tool box with engines on ebay once. Mostly generic stuff but hardware proved very good and on bottom of box a new Fox.049.

Dan

Mark Misegadis · « **Reply #22 on:** September 29, 2009, 06:40:55 AM »

Any thoughts on the earlier testers engines. The Baby Mac? Does anyone still try to fly these?

Mark

jim gilmore · « **Reply #23 on:** October 06, 2009, 09:38:54 AM »

Jim , if you mean those testor engins with the white molded fuel tank on the back. I actully had and flew them. Sold mine a few yeas ago on ebay attached to a plane . But wasn't much different in power than a baby bee.

50+AirYears · « **Reply #24 on:** October 07, 2009, 09:11:04 PM »

The only engines I had that gave me less luck than the Testors were an old Wen Mac I got as a Chrstmas present in an Aeromite probably about 1949 or 50, and an old McCoy red head .049. I only got one run with the Wen Mac, after the plane was history and the pull cors was worn off, and I never got the McCoy to do more than pop, not even run out a prime. The only run on the Wen Mac was with Fox Blast (40+ % Nitro?), a Walker baoon tank, and a 7-3 wood Top Flight prop. After the run, almost 0 compression. My O. K. Cubs were infinetly better engines. Got a lot of flying with them.

I think I remember trying several other props on that Testors P-51, from 5-4 to 6-3 with no luck.

dankar · « **Reply #25 on:** October 07, 2009, 11:20:49 PM »

If you mount them upright, balance the correct prop/ check the plug/ make sure everything is correct- They make excellent door stop !!

Robert McHam · « **Reply #26 on:** October 08, 2009, 04:39:15 AM »

Quote from: dankar on October 07, 2009, 11:20:49 PM

If you mount them upright, balance the correct prop/ check the plug/ make sure everything is correct- They make excellent door stop !!

I am hoping for a while I can find one or two of the tanks with the mounting lugs on them for now as these just snap into place. my second choice will be the cradle idea. This could also be modified if I were to design a modified beam mount set up... Also possibly using the small groove on one side to help out. I think that might be the way to go! I need to get this on paper and then to reality plus pictures!

Robert

Victor Jeffreys · « **Reply #27 on:** October 23, 2009, 01:58:29 PM »

The pistons, cylinders, and glow heads will work on Wen-Mac/Testor-McCoy rotary valve .049s. So will the needle valves (will need an extension soldered on) and I suspect that the spraybars will also work. The starter spring/clutch assemblies will also work on the rotary valve engines that need the Rotomatic starter repaired. To xperiment with intake timing and crankshaft porting on rotary valve WenMacs,the solid crankshaft can probably be machined out for those too.

Author Topic: How to best make use of this Testors engine? (Read 3777 times)

Alan Hahn