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HelicopterThunder TigerRAPTOR X50 › Air in header tank
08-28-2012 08:53 AM  5 years agoPost 1
Czopek

rrNovice

Lodz - Poland

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Hello everyone,

Just bought Raptor x50 BD as it's my first nitro got some questions.

First of all... header tank. Should it be full all the time or can it be filling up slowly with air??
While flying "normal" it's stasy full, but when I go to 3D, air become filling my header tank.

I did checked my whole fuel line. No liking, all tubes are perfect. I did preasure test and everything is ok.

So why my heaser tank is getting air?? Sometimes it;s filled up with 1/3 or 1/2.

Thanks in advanced.
Czopek

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08-28-2012 10:19 AM  5 years agoPost 2
Zbawer

rrApprentice

Singapore

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Yes I think it is normal to pick up some air toward the end of your flight, especially if you fly really aggressive 3D.

When the main tank gets 2/3 or 3/4 empty then it is quite likely (especially if you do not use a fuel magnet in the main tank) that it is going to pick up some air, which will end up in your header tank instead of screwing up with the mixture at the carburator.
So the header tank is effectively fulfilling its role.
Nothing to worry about.

But do not keep on flying 3D when the main tank is totally empty and you're running on the header !! you should land before and refuel.

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08-28-2012 02:07 PM  5 years agoPost 3
JeffKollin

rrKey Veteran

Jenison, MI

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If you can hover inverted, flip your heli inverted and hover. After a minute or so flip it upright and check your header tank. If it is low on fuel then your clunk in your main tank is not staying in fuel. Also maybe check your pressure line from the muffler and make sure the nipple is not plugged with debris and that the hose is not cracked.

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08-29-2012 06:30 AM  5 years agoPost 4
Czopek

rrNovice

Lodz - Poland

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Durin hovering, doesn't matter if inverted or not, header tank remain full, almost 100% full.
Problem with the air starts mostly during flips.

I've alredy checked pressure line and in my oppinion it works just fine.

I've already replace whole fuel tubes with new ones so I'm 100% sure that there are no cracks there.

I think JeffKollin you are righ... klunk in my main tank is not staying in fuel. But this is mostly because of main tank desing.

My most important question is, Is it just me or this is common thing with X50??

I'm planing to buy fuel magnet and hope it will solve my problems, but unfortunatelly cannot find it anywhere in Poland

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08-29-2012 11:13 AM  5 years agoPost 5
LaurenceGough

rrElite Veteran

Reading, UK

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You could try a OS Bubbless clunk.

www.laurencegough.com
Sponsors:
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08-29-2012 11:44 AM  5 years agoPost 6
Czopek

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Lodz - Poland

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And once again no OS bubbleless clunk avalible in Poland, but I've foude something like this

it looks very much the same like OS bubbleless clunk... what do you think?

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08-29-2012 01:37 PM  5 years agoPost 7
JeffKollin

rrKey Veteran

Jenison, MI

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It looks very much like the same. My X50 has the same problem, especially doing piro flips. The problem is that the main tank fuel line is so short that it has a problem staying in fuel at all times. I was going to try a fuel magnet but the fuel line would have to be shorter and then flexability would become a problem.

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08-29-2012 09:16 PM  5 years agoPost 8
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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You can also try a more flexible fuel line inside the main tank.
If it is too stiff, it will cause the clunk be "slow" following the fuel as you flip and 3D.

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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08-30-2012 10:32 AM  5 years agoPost 9
Czopek

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Lodz - Poland

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You can also try a more flexible fuel line inside the main tank
I've alredy installed most flexible fuel line I coud find.

I will do some testing today with new clunk.
Hope it will help.

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08-31-2012 01:56 PM  5 years agoPost 10
zoro

rrApprentice

Cairns

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Is the fuel line too long causing the clunk to get caught up on the back of the tank?

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09-02-2012 02:48 PM  5 years agoPost 11
MartyH

rrProfessor

USA

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Sure sounds like the main tank clunk is coming out of the fuel. Make sure your line is the correct length, has no splits or holes in it and you may want to go bubbless regardless.

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09-03-2012 12:41 AM  5 years agoPost 12
johnbs8

rrKey Veteran

roseville michigan

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I get the same thing on both my x50's. I just put a fuel magnet in one and its working alot better. Its getting more fuel out of the main tank and allowing for more flight time before i hit the header.

TT X50 Nitro
Warp 360
Logo 550sx
TeaM KicKnWinG

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09-04-2012 06:45 AM  5 years agoPost 13
Czopek

rrNovice

Lodz - Poland

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Ok. After few days of testing I have to adimt that OS bubbleless clunk did the work great.

Now I heve almost zero air in header tank, doesn't matter if I flip it roll it... header tank is always 99% full. Works just great!!!

In the mean time I've ordered fuelmagnet. When it arrives I will compare OS bubbleless and FuelMagnet.

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09-04-2012 07:16 AM  5 years agoPost 14
Zbawer

rrApprentice

Singapore

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Good for you man ... but why would you change a winning team ?
If the OS bubbleless already solved your problem why would you try something else ?
How much better can it get ? 1% better out of 99% already good ?
Fuel magnet can fail sometime, the OS bubbleless clunk is much more reliable.
just my 2 cents

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09-04-2012 07:27 AM  5 years agoPost 15
Czopek

rrNovice

Lodz - Poland

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Good for you man ... but why would you change a winning team ?
Just want to test it... couse I'm curios. I've never had any expiriens with this kind of clunks and I just want to know how will it work. I've already bought FuelMagnet and it's on the way.
How much better can it get ? 1% better out of 99% already good ?
I'm not expecting any improvment 99% is great result. As I wrote before I'm just curios and thats it.

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09-04-2012 07:45 AM  5 years agoPost 16
Zbawer

rrApprentice

Singapore

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Fair enough !
But you should read this thread first :
https://rc.runryder.com/helicopter/t647879p1/

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09-04-2012 10:49 AM  5 years agoPost 17
Czopek

rrNovice

Lodz - Poland

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lol Not so great for FuelMagnet

Thx for the link.

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09-04-2012 12:03 PM  5 years agoPost 18
JPhillips

rrVeteran

Waco, TX

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Go with the fuel magnet. Stay away from the lynx MOAS because it doesn't work. I tried them and was going lean at half a tank. Switched back to the fuel magnet and all is well. I use a header tank on my X50 as well.

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09-05-2012 05:38 PM  5 years agoPost 19
LaurenceGough

rrElite Veteran

Reading, UK

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I use the OS Bubbless clunk and a header tank because I think introducing any kind of foam or fibre into the fuel system is asking for trouble at some point down the line.

Glad to hear the bubbless clunk sorted it for you.

www.laurencegough.com
Sponsors:
Fast Lad Performance
OPTIFUEL
Horizon Hobby
Spektrum

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09-07-2012 06:21 AM  5 years agoPost 20
Czopek

rrNovice

Lodz - Poland

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I think introducing any kind of foam or fibre into the fuel system is asking for trouble
You might be right... I will stay with OS clunk then.

Thank you all once again.

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