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HelicopterThunder TigerOther › Thunder Tiger Header Tank Problems [edited]
03-30-2005 12:51 AM  13 years agoPost 1
polyhedron

rrApprentice

Amite, Louisiana, USA

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I've had my raptor 50 for about a year now and I've been flying with the original stock header tank. I always noticed that air was filling up the header tank even though the main tank was full. I have no explanation of why the header tank was getting air other than the stock header tank sucks. Yesterday I installed one of those header tanks from heliproz.com, I had some reservations about ordering it because it looked the same, but I decided to give it a try since air in my header tank caused me to crash a couple of months ago.

A few months ago, I was doing some loops and the engine died. Ever since then I've been shy to do loops, rolls, and fly inverted.

Today, at the field, was my first flight with the new header. After flying FF for a while, i dropped back down and looked at my header. To my suprise it was still 100% full.

I then started doing rolls, loops and a little inverted hovering. I brought her back down and it was still full. Finally, i dont have to worry about my engine dying because of a half full header tank.

The only thing i noticed about the heliproz header tank was that when I was refueling, some fuel was leaking from the spicket that connects to the carb. I'll have to fix that.


--Matt

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03-30-2005 01:00 AM  13 years agoPost 2
Flying Weasel

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Birmingham Al

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Either cut off the fuel to the carb when you fuel or fill directly into the main tank. When fueling into the header tank it creates force pushing fuel into the carb when not needed. If the carb is closed, the fuel has no place to go but to leak around the nipple. It can also cause vapor lock if you are not careful.

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03-30-2005 02:07 AM  13 years agoPost 3
da_man

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Central NC

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I never had a problem with that header tank either. The main tank is a different story.

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03-30-2005 02:16 AM  13 years agoPost 4
ohs

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New Zealand

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Same here, TT header tanks work fine.

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03-30-2005 02:44 AM  13 years agoPost 5
nojohnny101

rrElite Veteran

10 miles north of Cincy, OHIO

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hey
i'm running the heliproz one....works great for me....great product and great product...
can't complain here.....never tried the TT one though


Thanks
~Will~

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03-30-2005 02:57 AM  13 years agoPost 6
supertux1

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Madison, WI

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I just replaced a header tank. My main problem was that the little rubber o-ring seal on the black nipple thingy wasn't working anymore, or
the hole got too big, or something. It was loose and couldn't be any tighter.

Anyway, I was lucky and caught the fuel dripping from the seal while refueling on the ground. I went and bought a new tank and it was golden. I think I'm going to put a tight ziptie around the outlet base instead of that metal ring.

I've always used one of these to make sure I didn't force fuel into the carb while refueling:

http://www2.towerhobbies.com/cgi-bi...?&I=LXD745&P=ML

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03-30-2005 03:23 AM  13 years agoPost 7
nojohnny101

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10 miles north of Cincy, OHIO

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hey
funny you mentoin that....i use that tooo...
i has a ball bearing in it and when you push that thing into it to refuel it pushes the ball bearing up blocking the line ot hte carb....and then you just pull it out....
the ball bearing falls back into place and the fuel can flow through to the carb.....


well worth the investment

Thanks
~Will~

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03-30-2005 03:26 AM  13 years agoPost 8
polyhedron

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Amite, Louisiana, USA

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ColinB
Did you change any fuel lines since the new tank?
No, I didn't change any fuel lines, but I did re route my connection from my muffler to my main tank. I now have the lines running from the main tank right by the main gear and clutch bell and then to the muffler.

TTHelis
Out of curiousity, did you change the clunk line in the header tank?
Also, i did change the clunk in the header tank. It's the one that came with the new header tank.

Flying Weasel
Between my header tank and carb, i have a 3-way. I refuel at this 3-way, but I pinch the line right by the carb when i fuel. This way my header tank fills first and then the main tank fills.

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03-30-2005 03:34 AM  13 years agoPost 9
polyhedron

rrApprentice

Amite, Louisiana, USA

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Pictures


--Matt

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03-30-2005 04:17 AM  13 years agoPost 10
ptarp

rrVeteran

IL

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Is that the proper orientation of the collective servo? I switched mine around to make the linkages straight when I moved to the inner link location on the pitch arm.

It does show it like yours in the manual however.


Philip

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03-30-2005 04:28 AM  13 years agoPost 11
polyhedron

rrApprentice

Amite, Louisiana, USA

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I don't really know, but it works for me!

I guess im not hotshot enough to notice any difference. This is my first heli.

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03-30-2005 04:41 AM  13 years agoPost 12
ptarp

rrVeteran

IL

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It probably wouldn't make much difference. You just wouldn't have a completely linear pitch progression. It would have some mechanical "expo" built-in .

BTW, I checked your gallery. I kinda like the rappy in plain white, I might give it a try. Also, how in the world did you get your training gear to flatten out like that? Couple hard landings?


Philip

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03-30-2005 04:43 AM  13 years agoPost 13
polyhedron

rrApprentice

Amite, Louisiana, USA

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No that rotopod would flatten out like that. It had two sets of holes.

My heli is orange now with a bunch of cracks in the paint from crashing! If you look at my two pictures that i posted you'll probably see paint chips on the body!

New Question

Something else happens too that bothers me with my heli.

This was happening at one time, but it quit, and now it's back again. I get a lot of fuel on the front skids of the heli. My guess it that fuel spews from the carb and gets all over the skids. I was wondering what normally causes that.

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03-30-2005 05:33 AM  13 years agoPost 14
nojohnny101

rrElite Veteran

10 miles north of Cincy, OHIO

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hey
ptrap....i've been running my hi-tec 5645 (digital) like that for a while....
am just not reassembling from a crash and now that you point it out i think it's time to switch....


Thanks
~Will~

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HelicopterThunder TigerOther › Thunder Tiger Header Tank Problems [edited]
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