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HomeAircraftHelicopterMain Discussion › Easter blow up.lol....
04-25-2011 04:16 AM  7 years agoPost 1
McKrackinrrProfessor - Lucasville,Ohio - My Posts: All  Forum  Topic

A sad day in Mudville....

I think I left the air hose off the muffler when I took the engine out to change the clutch.Hurry hurry...Almost dark.

Ran fine in a hover but when I sent it out and shook it up,it went super lean and popped in a few seconds.

It was still smoking even though it wasn't running when I was autoing back home.

I literally never use the word literally right.

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04-25-2011 04:22 AM  7 years agoPost 2
heli-cuzz

rrElite Veteran

Pittston, Pa. USA

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Those black dots look like holes? Almost like it was machined that way?

Fury 55 NIB Furion6 CGY750 fbl helicopter-Frenzy CGY750 fbl nitro-Frenzy fbl NOBAR90

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04-25-2011 04:26 AM  7 years agoPost 3
stargazerww

rrApprentice

parkside, pa.

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yea ive been seeing these holes in pics lately what are they??

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04-25-2011 04:32 AM  7 years agoPost 4
OLROY

rrKey Veteran

Wichita Ks

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Nasty looking..sorry see it go that way

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04-25-2011 04:36 AM  7 years agoPost 5
ShuRugal

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Killeen, TX

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very nice ventilated panel, but what's it got to do with lean running your engine?

AMA 700159

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04-25-2011 04:36 AM  7 years agoPost 6
MXRACERX43

rrApprentice

Hazleton,PA USA

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Right you are Heli-Cuzz...
They are holes that lead to the ring groove.

Compression gas escapes into them helping to seal the ring....

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04-25-2011 04:40 AM  7 years agoPost 7
stargazerww

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parkside, pa.

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oh good idea nice

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04-25-2011 05:10 AM  7 years agoPost 8
McKrackin

rrProfessor

Lucasville,Ohio

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very nice ventilated panel, but what's it got to do with lean running your engine?
Sorry.Ya lost me.lol....

It's the piston in front of the panel.
Is the whole pic not showing on your computer?

I literally never use the word literally right.

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04-25-2011 05:17 AM  7 years agoPost 9
GREYEAGLE

rrElite Veteran

Flat Land's

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Wow
What happened ?? Did you loose the whole motor ??

greyeagle

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04-25-2011 05:30 AM  7 years agoPost 10
max232

rrVeteran

Pensacola

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Sad site indeed. Fwiw

Happy Easter

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04-25-2011 05:41 AM  7 years agoPost 11
Ladymagic

rrKey Veteran

South Korea

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ouch...popped a few pistons myself, but none of them were as nasty looking as this one.

Not really sure how it leaned out on you like that. If the exhaust vent line wasn't attached...I thought your engine wouldn't run at all because there wasn't any tank pressure. Even if it did run that way, it should have anything to do with your fuel mixture right? Maybe I misread your post.

Anyways, hope you get that engine running top notch again soon. I bet next time you won't be in such a hurry to go out and break your machine. I could tell stories for days about pilots (including myself) who messed up stuff becuase of being in too much of a hurry. Sometimes it's better to take your time even if that means having to wait until the next day to fly...at least you'll know your machine is good to go and you didn't miss anything.

Mellisa

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04-25-2011 05:56 AM  7 years agoPost 12
McKrackin

rrProfessor

Lucasville,Ohio

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Oh,I found out it will run without the tank pressurized but it won't draw as much fuel so the mixture is super lean.

It was fine in a hover.
I turned it around and hover in all orientations to listen for anything odd.

I admit,it sounded a little different but I thought it was from cleaning the engine a few minutes earlier.
It was running a little fast but not scary fast.

I sent it out and went idle up and it lasted about 15-20 seconds and popped.

I heard a metallic sound a few seconds before the pop.
I took it out of idle up and headed in.
It popped and stopped dead.
I was already set up to auto in.At least there was that.lol....

I literally never use the word literally right.

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04-25-2011 06:02 AM  7 years agoPost 13
McKrackin

rrProfessor

Lucasville,Ohio

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What happened ?? Did you loose the whole motor ??
Broke the piston and the rear bearing is super notchy.

Gonna hone the cyclinder.It is not scratched at all.

New piston,con rod,wrist pin,head gasket,glow plug and fan.

I took it apart mad and warped the fan.lol...

I might even go with a new engine.

I have my 600N to fly a while.

I literally never use the word literally right.

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04-25-2011 06:13 AM  7 years agoPost 14
GREYEAGLE

rrElite Veteran

Flat Land's

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Careful
You hone you may blow right past the chrome plate or Nickasil plate.

Scotch Brite it over to the engine forum

greyeagle

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04-25-2011 06:14 AM  7 years agoPost 15
scott s.

rrElite Veteran

Orange, Ca.

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and another reason
i quit flying nitro.

sorry about your piston

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04-25-2011 06:16 AM  7 years agoPost 16
OICU812

rrMaster

Edson, Alberta, Canada

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Man Mcrackin, why you still flying Nitro? It obviously does not like you!

...Once upon a time there were Nitros, flybars and frequency pins...

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04-25-2011 06:18 AM  7 years agoPost 17
scott s.

rrElite Veteran

Orange, Ca.

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electric
plug and play

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04-25-2011 06:57 AM  7 years agoPost 18
McKrackin

rrProfessor

Lucasville,Ohio

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Obviously doesn't like me?

I have been nitro since January this year.
The weather has prevented any flying or learning in that time.

Sorry but one hot start and one popped piston is not enough to make me quit.Not in my nature...

Plug-n-play?

I flew electric for a few years and I felt it was heavy on the play.
I hate just putting in batteries and playing.

I enjoy working on engines and this blow up has turned into an opportunity now that I've mellowed a bit

I literally never use the word literally right.

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04-25-2011 07:00 AM  7 years agoPost 19
Ladymagic

rrKey Veteran

South Korea

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ahh, okay..I guess they can run without exhaust pressure. Sounds like you got alittle bit of work ahead. But, at least you still have a bird to work with until you get your 90 up agian. Good luck and again...sorry about the mishap....crap happens I guess this is yet another lesson learned.

Mellisa

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04-25-2011 07:06 AM  7 years agoPost 20
McKrackin

rrProfessor

Lucasville,Ohio

My Posts: All  Forum  Topic

I'm going to make a four wheeler payment a week late and fix the heli.

So tack on another $30 to the fix for late fees.

It's a true addiction for me

I literally never use the word literally right.

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