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HomeAircraftHelicopterSynergy R/COther › Flamed out again - Due to fuel magnet this time and not me!
04-02-2009 12:31 AM  9 years agoPost 1
Rockohaulic

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Canyon Country, CA, USA, 3rd Rock from the Sun

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Arrrgggghhhhhhhh!

I swear my heli is possessed and it needs a Synergy Exorcism!!!

It flamed out again, but this time it was not my fault – I swear! I now have a fuel magnet installed, and there was plenty of fuel in the heli, at least half a tank. The problem is – the stupid foam deteriorated slightly and a chunk of the POS clogged the fuel filter causing the flameout and forcing an auto, which I am really good at now!!

But before any of you jump on this thread and say I didn’t keep fuel in the tank for the fuel magnet, blah blah blah, this was only the second flight with my new foam clunk. And yes, between flights I filled up the tank with fuel to keep it wet.

But after landing and trying to figure out what caused it, my buddy Randy noticed small bits and chunks of foam floating in the tank! What the F!

So I don’t care what any of you say that have had good luck with a fuel magnet/muffler pressure system, I am not flying this configuration ever again! I think it is just a disaster waiting to happen. OS bubbless here I come!

Now the really bad news:

After it leaned out, flamed out, and I auto’d in, the head temp was 345! Yes, 345. I removed the glow plug and of course the coil was a goner. The engine would turn over by hand, but it was not smooth.

So I have to drop the engine – again!

What should I expect to see? What kind of damage is normal for a lean like this and after seeing temps like this?

And who has the best stock of parts for an Align 91H/OS91 engine???

Thanks guys. I hope one day this thing can log some real flying time without all these freaking issues!

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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04-02-2009 12:44 AM  9 years agoPost 2
baddynergy

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sierra madre, ca- usa

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baddraptor
Elite Veteran
Location: valencia, ca- usa

My Posts This: Topic Forum The one thing I see wrong with it is the Align engine. Just know that the airframe may reject it and cause catastrophic damage..
I refer you to this post in your maiden flight thread. I hate to say it but you were warned.. Your just lucky it was only a flame out.

Are you reconsidering putting your YS from the Trex in the Synergy yet?? I would...

Damage: piston, liner, ring and possibly bearings. Its probably not bad as it just flamed out and not truly a lean run.
So I don’t care what any of you say that have had good luck with a fuel magnet/muffler pressure system, I am not flying this configuration ever again
Hmmmm, Header tank and back of the line for you.

**Unattended children will be givin a shot of espresso and a puppy**

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04-02-2009 12:56 AM  9 years agoPost 3
Rockohaulic

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Canyon Country, CA, USA, 3rd Rock from the Sun

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At first I wanted to blame the engine. After all, I had all kinds of great luck with the YS91 and it pulls like a train.

But this is not an engine issue. It is the stupid fuel magnet deteriorating and clogging the filter. I'm talking about a small junk of the stupid foam about the size of the diameter of the filter inlet!

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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04-02-2009 12:59 AM  9 years agoPost 4
baddynergy

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sierra madre, ca- usa

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But this is not an engine issue. It is the stupid fuel magnet deteriorating and clogging the filter. I'm talking about a small junk of the stupid foam about the size of the diameter of the filter inlet!
I understand the magnet detiorated. BUT it is a higher power telling you to get the Align engine out of the Synergy..Your airframe has truly rejected the engine and its doing everything it can to make sure it dies, what you do now is up to you..

Seriously, it was just a flame out. It shouldn't have done damage. Unless it was running lean for a bit before the flame out.

**Unattended children will be givin a shot of espresso and a puppy**

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04-02-2009 01:02 AM  9 years agoPost 5
Helico-pteron

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Glenview, Illinois

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I have to call user error on this one.

BTW, if one of your servos craps out in flight ae you going to switch to a different brand?

Last note, Synergy rejects anything Align. A crap motor belongs in a crap airframe. Put the Align motor where it belongs and put the awesome motor in the awesome heli.

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04-02-2009 01:03 AM  9 years agoPost 6
Rockohaulic

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Canyon Country, CA, USA, 3rd Rock from the Sun

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I have to call user error on this one.
Ummm, exactly how is it user error?

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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04-02-2009 01:05 AM  9 years agoPost 7
Helico-pteron

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Glenview, Illinois

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Did you check to see if there were any loose parts of the foam before install?

Secondly how are foam parts floating in the tank going to get through the foam? What were the conditions during installation? Was it a hurried install or did you thoroughly check it before install and flight?

I find it hard to believe after two flights the foam coming apart.

I have them in both my helis, FM are the best thing since sliced bread IMHO.

Oh and what makes you think it wasn't?

At any point, glad you saved it and 400deg is the poin at which things start to break up. Hopefully your motor won't need a huge amount of replacement parts.

I believe the YS is a better motor too, I recently switched to YS from OS. Big difference.

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04-02-2009 01:13 AM  9 years agoPost 8
Fastsrt

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Lebanon, Tn

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My Synergy and your must be long lost mates! I had the same thing happen to me. I made a fast flyby pulled up about 80 feet and it quit. This caused me to have to auto it down "for my first ever auto" and i kept it in 1 piece and landed about 60 feet away. I didn't mind the walk since i was picking up a complete heli . After looking it over i say my filter stopped completely up with foam parts and since it was only tank no. 7 or 8 of a new YS SR i accquired the job of replacing a sleeve, piston and ring. This motor is still not broken in yet and it is on it's 3rd top end. The 2nd time around it went lean while hovering in the driveway while trying to check my gov after some adjustments. It is possessed too! I have run 4 tanks since the new rebuild so far and it seems ok. (for now)
At first i didn't keep the tank full so it was my fault. I could have swore that i read somewhere that when using muffler pressure like a OS motor that you had to keep the magnet wet due to the exhaust gases to keep it from deteriorating the foam and with a pump style setup as the YS has that you didn't need to keep fuel in it since it is from crankcase pressure and no exhaust gases being put in the tank. In fact if i did for sure read that i now know that all that is B.S. and i have the proof to show for it.
I still have fuel mag's in all but 1 of my heli's and i do keep fuel in the ones that have been run and i have not had a problem with them anymore and it is going on 10 months or better. My 1 that doesn't have the mag in it has the OS bubbleless clunk and it is never a problem and performs just as well. That probably has alot to do with me not running it until the color disappears.

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04-02-2009 01:17 AM  9 years agoPost 9
Fastsrt

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Lebanon, Tn

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Secondly how are foam parts floating in the tank going to get through the foam?
It happens, i have seen it with my own eyes too. I don't know how but it happens. They must have came apart from the inside out which draws the foam into the line.

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04-02-2009 01:19 AM  9 years agoPost 10
Helico-pteron

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Glenview, Illinois

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What you read is partly true. It's the muffler gasses that deteriorate the foam. As long as you evacuate the gasses you are fine.

Second, draining the tank with an electric pump is very hard on the foam since the pump wants to suck the entire foam ring through thr tubing. I would suggest not draining the tank even with a hand pump for that reason alone.

With that said, the FM will be fine with the tank full or empty. Just as long as the muffler gasses are evacuated.

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04-02-2009 01:21 AM  9 years agoPost 11
Helico-pteron

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Glenview, Illinois

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It happens, i have seen it with my own eyes too. I don't know how but it happens. They must have came apart from the inside out which draws the foam into the line.
Ya, I know what you mean, but those foams pieces wouldn't get in, there has to already be some in the line. That was my point.

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04-02-2009 01:55 AM  9 years agoPost 12
Fastsrt

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Lebanon, Tn

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Knowing that the exhaust gases eat up the foam then why did i have the same problem and i'm running a YS SR pumped and no pipe pressure involved. I always vented the pressure from the tank when a flight was over and left it open until i filled up for the next flight. Why did mine become pieces parts?

I know what you are saying but i don't think you understood how i was describing it. What i was saying about the foam coming apart is that if it starts coming apart from the inside of the foam first then yes those parts will be sucked into the line since there is no screen or anything over the intake opening of the alum. mag insert.

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04-02-2009 02:54 AM  9 years agoPost 13
Helico-pteron

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Glenview, Illinois

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It's not the pressure, its the gasses.

I really don't know why it would come apart with the YS. Are you draining the tanks with a pump?

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04-02-2009 02:56 AM  9 years agoPost 14
Ace Dude

rrProfessor

USA

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It flamed out again, but this time it was not my fault – I swear! I now have a fuel magnet installed
So who installed the fuel magnet or did it just get there by itself?

  

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04-02-2009 03:09 AM  9 years agoPost 15
RappyTappy

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Traveling the USA

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Run a stock clunk and be done with it.

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04-02-2009 03:21 AM  9 years agoPost 16
RayoVac

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raptor4ever is a THIEF!!!

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I don't have a lot of time on it (or any nitros for that matter), but I got the OS bubble less clunk and it seems pretty nice. Other folks that have it, have said good things about it.

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04-02-2009 04:01 AM  9 years agoPost 17
Rockohaulic

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Canyon Country, CA, USA, 3rd Rock from the Sun

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So who installed the fuel magnet or did it just get there by itself?
What's your point?

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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04-02-2009 04:09 AM  9 years agoPost 18
Ace Dude

rrProfessor

USA

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What's your point?
If you can't figure it then there's really no point in explaining it.

  

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04-02-2009 04:18 AM  9 years agoPost 19
baddynergy

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sierra madre, ca- usa

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have to call user error on this one.
I have to disagree. I have been flying with Rock for over 2 years. I know it was not operator error. His Synergy is definetly rejecting the Align engine and trying to destroy it.

**Unattended children will be givin a shot of espresso and a puppy**

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04-02-2009 04:47 AM  9 years agoPost 20
mchammer

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California,USA

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IMHO, foam has no place in any fuel tank, period.

I know some guys like them but it just doesnt make good bussines sense.

Peace Through Superior Firepower!!!

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