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HelicopterMain Discussion › Engine hydrolocks or floods too soon.
08-28-2012 04:14 PM  5 years agoPost 1
coolgabsi

rrApprentice

Plano TX

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Heli Vibe-50 or Kinetic 50
Engine : OS050-SX-H

as soon as I open the fuel line going to the carb after fueling, fuel rushes into the engine and man, it becomes hard to turn it. BURNT 2 starters already.
Getting an Align one now. Drill was having a hard time, as the shaft would start slipping in its grips.. any waz..

how to prevent from that to happen. I have good pipes going everywhere, I just replaced them too

this has been happening a lot. I am kinda frustrated cuase it makes it HELL to start my engines.
Something y'all suggest ?

Also, do y'all see oil drops on the back plate screws once engine has been running. I have good seals on head and back plate, but still see those droplets of oil on the backplate screws. that normal ?

Let me know thanks!

Gaba

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

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08-28-2012 04:19 PM  5 years agoPost 2
bkervaski

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Birmingham, AL, USA

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The Align starter, aka the "jackhammer" is a terrible solution, it beats your start shaft and bearings to death. Best to go with the tried and true Torqmaster 180 + Sullivan Shaft, smooth and will last forever.

If fuel is being pushed into the engine then sounds like you have pressure build up, just relieve the pressure first.

The oil drops are an indication of the motor being way too rich, it's probably coming from the carb, just trickling down. It could be the gasket if you've been "forcing" the motor to start hydro-locked.

Can you post a pic of your fuel system setup?

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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08-28-2012 04:21 PM  5 years agoPost 3
ticedoff8

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Morgan Hill, CA. USA

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Sounds like too much pressure in the tank.
Are you running pipe / muffler pressure?

I would unhook the pressure line from the tank while starting to see if that helps.

Believe 1/2 of what you see and none of what you hear.
Fake News will be the downfall of our Republic!

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08-28-2012 04:27 PM  5 years agoPost 4
McKrackin

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Lucasville,Ohio

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I put a T in my pressure line just like the fill tube.

Open it when you pump fuel in the tank and the air in the tank will get pushed out that T.

I literally never use the word literally right.

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08-28-2012 04:36 PM  5 years agoPost 5
coolgabsi

rrApprentice

Plano TX

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torqmaster 180 is one of the starters I have burnt.. lol thats why .. I was running it on 3s lipo.

AS far as the tubing, I will post it when I am around the helis..

as far as the droplets on the backplate nuts ( again its oil not nitro) , I will try again, once I acquire a starter to see if I can get those drips again, ans track some.

I am runing muffler pressure, and I checked a doublechecked the muffler line by blowing into it too.. to see if I am geting to the tank and back.. it was fine. The muffler is CY MP5 50.. I guess I will let some fuel run out, and then try once more. its a mystery.. lol

esp in the vibe whose air outlet is uptop, which would add pressure I would think. I like back pressure, but not too much heehee. lets see..

align starter I read around became to only one who looked like it could start my heli. I have hammered my helis enough with my drill.. what in the word could I be doing so wrong that I had 2 starters burn on me..

??

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

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08-28-2012 04:38 PM  5 years agoPost 6
bkervaski

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Birmingham, AL, USA

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If you're forcing the heli to start hydro-locked that would burn up a starter if you just keep hammering it for sure.

18-24v is what your starter should run, gentle enough not to break anything, powerful enough to start a 105.

If a 24v Torqmaster can't start your heli, stop! There is a problem that needs to be fixed, in your case sounds like a fuel issue.

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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08-28-2012 04:40 PM  5 years agoPost 7
McKrackin

rrProfessor

Lucasville,Ohio

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OS105 has less compression than an OS91....Just FYI

I literally never use the word literally right.

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08-28-2012 04:42 PM  5 years agoPost 8
coolgabsi

rrApprentice

Plano TX

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ok so how do you "unhydrolock" these engines once they do get hydrolocked.. I mean its not like I can access the spark plug to get the fuel out that way like in a plank .. The fuel tubings are all as free as they can be all around. I just changed the pipes too.. realizing that my filer had a crack and was taking air.

anywaz.. all that to say, I feel stuck.. lol.. fuel is doing what a fluid will always do .. engine is doing what it will on too much fuel.. on 1.5 turns out, I am like.. WHAAAAT! lol

EDIT:

also the batteriesd.. the lead acid ones. arent those 12 v also ? arent those the recommended batteries ? i am just wondering when you say 18-24v.. how do you supply that?

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

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08-28-2012 04:45 PM  5 years agoPost 9
McKrackin

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Lucasville,Ohio

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Let the air out of the tank like I said....It stops the hydrolock.

I literally never use the word literally right.

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08-28-2012 04:45 PM  5 years agoPost 10
bkervaski

rrElite Veteran

Birmingham, AL, USA

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The easiest way to relieve a hydro-locked engine is the glow plug.

If that's not an option, tilt your heli towards the muffler with the throttle open and let it drain.

If you're in a hurry use your starter to turn it over to help it a bit but only if it's not completely locked up, you don't want to break anything. Also, if you're going to do this make sure your glow is off or you'll hotstart it, which won't be fun.

Lastly you could pull the fuel line from the carb and turn it over a little. If I have one partially hydro-locked this is what I do and it works well, just let it start up this way and plug the fuel line back in, there will be enough residual fuel to give you time.

Just be gentle with your motor, they aren't indestructible, no need to hammer on it.

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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08-28-2012 04:49 PM  5 years agoPost 11
coolgabsi

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Plano TX

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ok .. i will try that..

what about the battery size?

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

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08-28-2012 04:50 PM  5 years agoPost 12
bkervaski

rrElite Veteran

Birmingham, AL, USA

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18-24v

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08-28-2012 04:54 PM  5 years agoPost 13
coolgabsi

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Plano TX

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thats what i am wondering. what do you use for that.. I know a lipo will do it..

but arent the lead acid batteries ( those gynormous heavy black ones ..lol) that are 12v..recommended ones?

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

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08-28-2012 04:56 PM  5 years agoPost 14
bkervaski

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Birmingham, AL, USA

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Actually I use two 7S NIMH packs in series, 16.8v nominal, ~19v fully charged.

They are easy to deal with, you can abuse the crap out of them (fully discharge, etc). K&S makes some cool rubber holders so you can mount them under your Torqmaster, really clean setup.

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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08-28-2012 04:57 PM  5 years agoPost 15
coolgabsi

rrApprentice

Plano TX

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mind giving me a link?

thanks!

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

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08-28-2012 04:58 PM  5 years agoPost 16
dc8capt

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Clark Lake, Michigan USA

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I had this trouble with my 600n and discovered clutch was in two pieces. Fixed that, never did it again.

Learning to fly again.

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08-28-2012 04:59 PM  5 years agoPost 17
bkervaski

rrElite Veteran

Birmingham, AL, USA

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Part # KSJ454

http://www.horizonhobby.com/product...k-holder-KSJ454 (first google hit)

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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08-28-2012 05:01 PM  5 years agoPost 18
coolgabsi

rrApprentice

Plano TX

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ohh oops.. ok.. the batteries are 7s packs.. ok I'll look around for it..

ok then next thing I will have to add is the starter shaft with OWB.. that's the sullyvan one y'all are talking about. ?

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

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08-28-2012 05:02 PM  5 years agoPost 19
bkervaski

rrElite Veteran

Birmingham, AL, USA

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Yea, it's pretty much the best one out there.

A while back there was a run that had softer shafts but the current Sullivan Start Shaft is tops!

You can get 7 cell NIMH at your LHS or have a custom pack built from http://cheapbatterypacks.com (that's what I did).

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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08-28-2012 05:07 PM  5 years agoPost 20
bkervaski

rrElite Veteran

Birmingham, AL, USA

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7S NIMH (two in series), not Lipo, they are 1.2v per cell, lipo is 3.7, so 7S lipo would be 25.9v and just heavy and ugly.

If you want lipo, probably a 4S or 5S max.

You're not trying to destroy the engine, our modern lipos discharge without mercy. For a starter, I still think NIMH is the way to go.

Team Synergy Factory Specialist / Scorpion / Thunder Power / Byron's Fuels

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HelicopterMain Discussion › Engine hydrolocks or floods too soon.
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