RunRyder RC
 5  Topic Subscribe
WATCH
 1 page 900 views POST REPLY
HelicopterEngines Plugs Mufflers Fuel › Motor quitting in inverted ... Fuel line is ok.
01-29-2012 03:58 AM  6 years agoPost 1
coolgabsi

rrApprentice

Plano TX

My Posts: All  Forum  Topic

My engine is quitting while inverted. But my fuel line is just the exact right size and all looks good, no looks. Actually anytime I am pulling a long streak of revving engine, I think it quits. I ha to freakin inverted auto, when I can barely do a good right side up auto. I mean comeon!! I am not lean I think, at landing my temp readings are 180-190F...

Confusion!!! I donno what's happening! Please help me!

I am so confused. The fuel line is exactly the manual's length and flops around when needed.

It actually quit while flying into the wind, the engine was over revving .. And it quit for a second, and then it started up again all by itself. I donno what the heck happened there. I have full compression.

Was proud of myself For pulling an inverted auto though...

People call me crash master... for a reason.. :P :D

PM  EMAIL  GALLERY  Attn:RR  Quote
01-29-2012 12:42 PM  6 years agoPost 2
airdodger

rrElite Veteran

Johnston USA

My Posts: All  Forum  Topic

Check to see if the clunk is hanging somewhere in the tank.

Chris

PM  EMAIL  GALLERY  Attn:RR  Quote
01-29-2012 02:32 PM  6 years agoPost 3
coolgabsi

rrApprentice

Plano TX

My Posts: All  Forum  Topic

I don't understand? Clunk is hanging... On the fuel line ... Isn't that how it's supposed to be?

People call me crash master... for a reason.. :P :D

PM  EMAIL  GALLERY  Attn:RR  Quote
01-29-2012 02:48 PM  6 years agoPost 4
poerQwa

rrVeteran

Rotterdam, The Netherlands

My Posts: All  Forum  Topic

The clunk needs to just hit the sides of your tank as to allow it to move freely as well as be in "touch" of the fuel all the time.
If the fuelline(inside your tank) is too thick it will move but will never hit the walls as it is too sturdy/stiff.

Greetz,

Marc

PM  EMAIL  GALLERY  Attn:RR  Quote
01-29-2012 02:50 PM  6 years agoPost 5
FLYERCLD

rrVeteran

Proctor, Arkansas

My Posts: All  Forum  Topic

Sound like your engine is to rich. what are your needle settings, also check your plug, change it out and try it again.

MA Whiplash Nitro
Avant Aurora X2
OS 91 HZ
YS120
VBAR BlueLine
DX18
AMA L504443

PM  EMAIL  GALLERY  Attn:RR  Quote
01-29-2012 03:07 PM  6 years agoPost 6
unclejane

rrElite Veteran

santa fe, NM, USA

My Posts: All  Forum  Topic

Your fuel line is probably _not_ ok . You're describing classic fuel starvation, so I'd troubleshoot it as a fuel starvation issue.

If the klunk is moving around inside the tank the way it should, start looking for leaks in the lines. Pinholes, little splits where they're attached to fittings, etc. You should be able to pressurize the tank and it should hold the pressure basically indefinitely.

After that, look for air leaks in the carb - is the fuel fitting properly seated, etc....

that would be where I'd start.

LS

PM  EMAIL  Attn:RR  Quote
01-30-2012 05:35 AM  6 years agoPost 7
coolgabsi

rrApprentice

Plano TX

My Posts: All  Forum  Topic

unclejane..

I just recovered my engine from a massive leak.. I was running not the right amount of washers and all, making fuel to leak from my carb.

Also then, the fuel tubing was a problem. Then a third hole on my fuel tank stopper. OHHH the horror.. but that was all before. I burnt an engine with that, and now after a rebuild I am back.. LOL.. or sort a..

I rechecked everything, I will be ok replacing all tubing just in case. I mean cheap insurance... but I am pretty sure my pipes were ok..

Now the engine is running mp5 50 muffler. I am getting a bit confused in tuning this. i started out 1.5 turns.. now I am around 1 turn plus a couple clicks. Still getting a lot of smoke. on 15percent cool power. my temperature after landing on an idling engine was 190 after flying around.

I did do another inverted flight right after it quit on me on this flight, this time no quitting, seemed like it was stressed engine though..

But, this time, i was right side when the engine stopped for a couple seconds, but then fired up again. that was wierd.. and interesting.. just updating y'all with everything.. let me know!

People call me crash master... for a reason.. :P :D

PM  EMAIL  GALLERY  Attn:RR  Quote
01-30-2012 06:08 PM  6 years agoPost 8
Evan03

rrVeteran

Idaho

My Posts: All  Forum  Topic

what about installing one of those foam coverd clunks that soaks up the fuel.

i dont 3d or anything but in collective pops back to back i can see my clunk come out the fuel for second. motor doesnt seem to notice but i still plan to get the foam clunks that soak up the fuel and still provide the needed fule even when the clunk comes out of the fuel for split second

heres what im talking about

http://www.amainhobbies.com/product...Fuel-Tank-Clunk

PM  EMAIL  GALLERY  Attn:RR  Quote
01-30-2012 07:46 PM  6 years agoPost 9
coolgabsi

rrApprentice

Plano TX

My Posts: All  Forum  Topic

Those are BAD!!! Please don't get that! Rather get a os bubble less clunk.

Those foam ones do the job but are extremely high Maintanence.. You miss ONCE and they are dead. Please don't... Lol ..

You have to remember to refuel the tank everytime immediately after flight. If they come in contact with any gases, the wither and die, or worse kill your engine with foamie residues going into it after the foam dies..

My opinion.. Strong.. But my opinion..

People call me crash master... for a reason.. :P :D

PM  EMAIL  GALLERY  Attn:RR  Quote
01-30-2012 08:16 PM  6 years agoPost 10
airdodger

rrElite Veteran

Johnston USA

My Posts: All  Forum  Topic

Sounds like the clunk is hanging in the tank, again. Make sure the tubing is flexible enough so it will follow the fuel.

Chris

PM  EMAIL  GALLERY  Attn:RR  Quote
01-30-2012 08:17 PM  6 years agoPost 11
carcrasher

rrElite Veteran

east coast

My Posts: All  Forum  Topic

Do you run crank case pressure or muffler pressure? They won't last long with muffler pressure. I've used them in all my helis using crankcase pressure for more than a season. But I agree with using the os clunk. No need to switch out foam or what ever it is that they use and less chance of damaging the seal on the tank.

PM  EMAIL  GALLERY  Attn:RR  Quote
02-06-2012 05:31 AM  6 years agoPost 12
coolgabsi

rrApprentice

Plano TX

My Posts: All  Forum  Topic

ok y'all were right. I had clunk line issues. i changed to rotor rage fuel which smokes more, and yes inverted I was loosing smoke, going lean. It quit once again. But wasnt as bad. I auto-ed it again.

Now I am just waiting to put an OS bubbleless clunk and more flexible clunk line. and thats it. I think.. it should be good.

HOW NECESSARY IS GOVERNER????? SOMETHING I CAN LIVE WITHOUT, i dont eve know tic tocs yet... any ideas?

People call me crash master... for a reason.. :P :D

PM  EMAIL  GALLERY  Attn:RR  Quote
02-06-2012 06:07 AM  6 years agoPost 13
Dood

rrProfessor

Wescanson

My Posts: All  Forum  Topic

HOW NECESSARY IS GOVERNER?
I answered your governor question in detail in your OTHER THREAD

Can you live without it? Yes. I managed without a gov for a few years with only curves and mixes. If you're already going inverted, then you should at least have something. Either a gov or cyclic-throttle program mixing. Both work, and if set up properly, it should be almost impossible to tell whether you're running a gov or not.
If you're banging the cyclic hard to roll it over (you tend to bang it even harder when you're nervous), then you need something to tell the engine to give it more juice as you load the head.

  ▲
▲ ▲

PM  EMAIL  GALLERY  Attn:RR  Quote
02-14-2012 02:53 AM  6 years agoPost 14
Zaneman007

rrElite Veteran

Texas - USA

My Posts: All  Forum  Topic

Header tank
I use header tanks for piece of mind.

Old Guys Rule!

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 900 views POST REPLY
HelicopterEngines Plugs Mufflers Fuel › Motor quitting in inverted ... Fuel line is ok.
 Print TOPIC  Make Suggestion 

 5  Topic Subscribe

Sunday, May 20 - 6:18 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online