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question about a enya .60 that wont stay running?

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question about a enya .60 that wont stay running?

Old 06-25-2015, 11:18 AM
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rcworld2000
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Default question about a enya .60 that wont stay running?

question about a enya .60 that wont stay running?

ok i bought a older airplane with a .60 enya in it,

it starts up runs good for about 30 to 40 seconds then just dies ?

changed plug and tried tuning it to no end?

any ideas?
Old 06-25-2015, 11:47 AM
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skylark-flier
 
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I'd think first thing to look at is the fuel lines for possible holes. Next would be gummed carb, gummed crankcase, maybe leaks in seals.
Old 06-25-2015, 12:26 PM
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rcworld2000
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motor and exhaust had no oil leaking out any where. but i did find out motor has sat for some years so im going to change fuel lines and tank. and clean carb.
Old 06-25-2015, 06:38 PM
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Tom Nied
 
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Engine has got to be good. My guess, it might be gummed up, not a big deal with cleaning and running. Tank and fuel lines. If they are as old as you state, replace them. Good engines like that never die. Just needs some tender loving care. Good clean fuel, good clean tank, new fuel lines, maybe a new glow plug. An old Enya is worth its weight in gold.
Old 06-26-2015, 02:04 AM
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Tom is absolutely correct. I'd trade ANY of my engines for an old Enya.
Old 06-26-2015, 03:15 AM
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rcworld2000
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Yes Tom I agree it should be a good motor just needs some tlc.

It started up right away just wouldn't stay running. I am hoping to get it clean up this week and a new tank and line also. I will let you guys know
Old 06-26-2015, 06:01 AM
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jester_s1
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What are the circumstances when it dies? Is the head hot right after it shuts off? Do you hear the RPMs change at all before it dies? Do you see bubbles in the fuel line? And how about the general running characteristics? Does it respond consistently to changes of the needle valve? Is the RPM consistent until the engine quits?
Old 06-26-2015, 06:08 AM
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My favorite SK .91 did the same thing but it was right after a crash. Engine looks good but it will fire up, over heat and just quit. I used a dial indicator and discovered the crank was a little bent. That's all it took.
Old 06-26-2015, 06:21 AM
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rcworld2000
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Ok i didn't notice any bubbles but I don't rember if I looked for that.

But I do remember the head be in extra hot.

And the motor didnt make a different sound before it would die.

And the motor did respond to needle change but not as much as I thought it should?
Old 06-26-2015, 04:58 PM
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Tom Nied
 
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You say it dies after 30-40 seconds? You're not giving us much. Is that up in air, on the ground, at idle, full high RPM? What are the circumstances happening when it dies? Is it on an airplane or on a test stand? How old is your fuel? Have you pulled out the high speed needle valve and cleaned it as well as carb?
Old 06-26-2015, 05:16 PM
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rcworld2000
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Ok motor is in the plane. And it's on the ground. No I'm gonna clean carb this week. Oh and fuel is brand new. But on a new note when I drained the tank of the new fuel I put in the plane it was now brown not green like it was when I put it in.

So I'm gonna clean carb and change out tank to start.

And the motor will die at high or low. And it's does not
make a sound like it's lean or rich it just shuts off.

Last edited by rcworld2000; 06-26-2015 at 05:21 PM.
Old 06-26-2015, 05:22 PM
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rcworld2000
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Hope that helps
Old 06-26-2015, 05:42 PM
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Tom Nied
 
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Yeah, pull that tank and rebuild it. You got a test stand? You might want to run the engine on a test stand. I know test stands are extra work but I've found that it can help to sort problems like this out. You might not need one if the tank and plumbing is the issue. I sure hope you didn't drain the airplanes tank back into your gallon jug of fuel, because guess what, now that is contaminated. Crud in the fuel can make a good engine a frustrating piece of crap. So I'd say you should diligently clean the engine/carb, rebuild the tank, use new fuel tubing, and you should see improvement. Engines usually don't stop for no reason. There is something that is shutting it off.
Old 06-26-2015, 08:33 PM
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jester_s1
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Most of the time an engine that just quits does so because it's fuel starved ie, running lean. The hot head also supports that theory. The fact that it doesn't respond to the needles like it should says there is an air leak somewhere. I've checked cantankerous engines before by screwing out the needles and blowing into the carb inlet while blocking the intake and exhaust with the engine in a sink of water. You'll get bubbles wherever the worst air leak is.
Old 06-26-2015, 08:57 PM
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Remove the needle valve , use a thin piece of wire and wiggle it around ,push fuel thru the NV to clean it out
Reinstall the NV
Very good chance you could have an air leak in the head or crankcase ,by your symptoms
Air leaks cause lean ,hot running engines ,that do not stay running
The heat build up shuts the engine down
If you have the NV adjusted to lean ,the lack of fuel and oil in the fuel will cause over heating and the engine to shut down
Lean hot runs can have a negative effect on the condition of the glow plug ,keep that in mind
Not using the correct size prop on an engine ,will cause hot running and shut down as well
Flying only glo engines for 23 years with much success ,, hope that helps some
Old 06-27-2015, 01:56 AM
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rcworld2000
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Ok i will try all that. What size prop do you suggest for a enya .60
Old 06-27-2015, 07:40 AM
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The absolute best thing you can do for that tired old engine is to send it to me.

Jack
Old 06-27-2015, 07:41 AM
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Originally Posted by rcworld2000 View Post
Ok i will try all that. What size prop do you suggest for a enya .60
12x6, 11x6, 11x8
Old 06-27-2015, 08:52 AM
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rcworld2000
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Make me a offer jack
Old 06-28-2015, 09:40 PM
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rcworld2000
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ok took out old tank was full of black chunks of old dried up fuel...i cleaned carb and installed a new clean tank,, i will test it out tomorrow
Old 06-30-2015, 12:18 PM
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rcworld2000
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ok started the today motor is running a little better but still dies.

ok here what i found out

motor runs than still dies. but we tried something new we disconeted the line from the exhaust to the tank and the motor stays running for as long as we want as long as we dont go over 3/4 throttle. when i go over 3/4 the motor dies.

but also if i keep throttle under 3/4 throttle the moro will stay running but as soon as i plug the back pressure line to the muffler the motor dies instantly..
Old 06-30-2015, 06:59 PM
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jester_s1
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Is the vent stopped up by chance? I had that happen once.That would explain what you are describing. Stick a toothpick or Allen wrench in there to see if it's obstructed.
Old 06-30-2015, 07:18 PM
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Tom Nied
 
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That's a good one jester, I never thought of that. Sounds like rcworld2000 has an engine that has been sitting around for a long time. Crud in the muffler? Very possible. Crud in the crankcase, very possilbe. We know he had crud in the tank. Get the crud out rcworld! That engine needs a good cleaning by someone who is familiar with glow engines. I doubt it needs a full disassembly, but I'd take the head off, backplate off, carb off, and the muffler. Clean and flush out anything that is not metal. It's not the engine, it's the crud that's causing his troubles.

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