RunRyder RC
 3  Topic Subscribe
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1724 views
HelicopterMain Discussion › Raptor Tank Repairs
12-08-2004 05:54 AM  13 years agoPost 1
zoro

rrApprentice

Cairns

My Posts: All  Forum  Topic

After crashing my R50 and throwing the tank out of it one of the little locating tabs that stick out the side of it has decided to leak. My question is has anyone tried to epoxy/repair the fuel tanks on these successfully? If yes what did you use?

Regards
Kent

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 06:01 AM  13 years agoPost 2
medriver

rrApprentice

Scottsdale, AZ

My Posts: All  Forum  Topic

Hi Zoro,

I actually managed to damage one of the mounting tabs myself when installing my tank. They are pretty thin. I was able to repair it with putting a little JB Weld on it. I then sanded it down a bit to get it back to a flat surface. I have ran around 10 tanks through it without any leaks yet. It is probably stonger now then it was before.

Thanks

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 06:12 AM  13 years agoPost 3
zoro

rrApprentice

Cairns

My Posts: All  Forum  Topic

Sweet i have some JB weld too. Looks i have got myself a spare fuel tank now. .
Thanks Medriver you are the man.

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 06:32 AM  13 years agoPost 4
medriver

rrApprentice

Scottsdale, AZ

My Posts: All  Forum  Topic

zoro,

No problem, glad I could be of assistance.

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 08:40 AM  13 years agoPost 5
Wa11banger

rrElite Veteran

Huntsville, Al

My Posts: All  Forum  Topic

First epoxy is not fuel proof, our high nitro grade will definately eat it. second plastic doesn't like to let anything stick to it, especially things that are not flexible as it is.. JB weld is a good choice but my experience with time and vibration it even falls off. If however you are savy with a soldering iron you can get something to stick to plastic.... why plastic of course. Depending on the tear/leak and how bad you may simple be able to carefully i mean never leave the soldering iron near it long think of it as brush strokes with paint. melt the tear/tiny hole back together without any other material.. If you are lucky like myself you will have damn near tore the end off the nipple. in which case I used a piece of old fuel jug (milk carton works as well) to make a patch for it. I made the patch by using a pair of kids style hole punch pliers.. It's amazing its the exact size of the end of the nipple. Plastic especially molten kind is very sticky to itself and anything else btw so be careful its very hot. Going on at least 100 flights since and no sign of it giving out yet.. Unlike my JB weld experience it eventually failed do to vibration. See below for pics of how I did it.

Just my .02
Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-08-2004 09:03 AM  13 years agoPost 6
Gadgets

rrApprentice

South Africa

My Posts: All  Forum  Topic

I second the melting plastic idea.

BUT If not "SAVY" with a soldering iron,

try some CA with Baking Soda.





I see plank flyers!!!

PM  EMAIL  Attn:RR  Quote
12-08-2004 09:10 AM  13 years agoPost 7
zoro

rrApprentice

Cairns

My Posts: All  Forum  Topic

Thanks Rick i'll try that first before i put any sort of adhesive onto it. I fully understand the flexibility /vibration issues invloved here as well, glad you bought them up. I guess an epoxy of some sort could be used as an emergency-quick fix till the new tank arrived.
Thank you,
Kent

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 09:22 AM  13 years agoPost 8
Wa11banger

rrElite Veteran

Huntsville, Al

My Posts: All  Forum  Topic

Zoro,

No problem anytime I can help.. Another way but more tricky.. Make sure to have a cold water available.. The reason this is critical is the method.. You can take the large piece of plastic from fuel jug and catch the corner of it on fire with a lighter. YES.. .you have to clean it first or the fuel residue will give you a big surprise next let a drip of it fall right on the tit of the tank.. Watch it carefully and closely since it is totally molten it will instantly turn clear.. This is where the water comes in if it stays clear too long it or the clear spot gets to big it can start to sag (that damn gravity law again) if it starts to sag inward dip you hand into the cold water and drip it onto the clear spot.. it will go white again almost instantly and set.. The reason I didn't recommend this method first is one you have to watch it like a hawk and two its molten plastic and gooeyer (if thats a word) than Napalm if you get it on yourself the burn is gonna hurt

BTW can you tell I have a few severe Rappy crashes under my belt

Just my .02
Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-08-2004 09:23 AM  13 years agoPost 9
zoro

rrApprentice

Cairns

My Posts: All  Forum  Topic

What does baking soda do to the CA Gadgets?
Is it some sort of chemical reaction or something?

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 09:25 AM  13 years agoPost 10
Wa11banger

rrElite Veteran

Huntsville, Al

My Posts: All  Forum  Topic

It gives it a filler consistency and makes it hard as a rock... Sort of a cheaper way than a product called micro balloons.. I have used it many times on my planks but if you fly 30% nitro even superglue will give dissolve.

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-08-2004 09:26 AM  13 years agoPost 11
Wa11banger

rrElite Veteran

Huntsville, Al

My Posts: All  Forum  Topic

Very good point JaneK

Yes please empty the tank.. first.. or at least say "Hey ya'all watch this.."

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-08-2004 09:27 AM  13 years agoPost 12
zoro

rrApprentice

Cairns

My Posts: All  Forum  Topic

Yeah Rick it does sound like you have had your fair share of crashes.
At least now i have a few great tricks to try and to pass on.

Thanks again,
Kent

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 09:29 AM  13 years agoPost 13
zoro

rrApprentice

Cairns

My Posts: All  Forum  Topic

Thanks for the tip Janek.
Sorry for the posts being out of order guys i type very slowly. obviously.

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 09:37 AM  13 years agoPost 14
Gadgets

rrApprentice

South Africa

My Posts: All  Forum  Topic

Wa11banger is dead right.

I have never used it with 30% nitro though , so I cant comment.

Has anyone ever used silicone? I wonder,, it can be "forced" in and sort of plug in the hole from both sides.





I see plank flyers!!!

PM  EMAIL  Attn:RR  Quote
12-08-2004 09:43 AM  13 years agoPost 15
Wa11banger

rrElite Veteran

Huntsville, Al

My Posts: All  Forum  Topic

hehe funny you should ask that Gadget... Why yes I have lol.. It can and cant work... If it is the front tit no.. if it is one of the rear **** it will work but I discontinued trying it since it only worked in one place and not the other.. The reason is the mashing that the frames do to the tank right behind the motor mount.. and it has little ridges in those sockets, it causes the silicone to break free, or crack itself, or pull away from the cell. I developed a leak on my 5th tank using silicone up front.


Just my .02
Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-08-2004 09:45 AM  13 years agoPost 16
Wa11banger

rrElite Veteran

Huntsville, Al

My Posts: All  Forum  Topic

Whoops.. cant say t-i-t-s I was reffering to the ones on the tank tho

I guess I will have to go back to nipples
Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
12-08-2004 12:42 PM  13 years agoPost 17
Avropilot

rrVeteran

Murfreesboro, Tennessee

My Posts: All  Forum  Topic

Zap A Dap Goo is fuel proof and you wont even have to put something very hot near something very flamabale to make it work. Most hobby stores and some hardware stores have it. Just scuff it up a bit.

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 04:50 PM  13 years agoPost 18
BC Don

rrElite Veteran

Calgary, AB Canada

My Posts: All  Forum  Topic

There is a product, I believe called "seal all" (comes in a yellow and red tube). This stuff is "fuel proof" for normal automotive fuel. I've used it plug gas tank leaks while the tank is leaking. For automotive fuel tanks you spread some on and it seals - remains flexible as well.

Don't know if this would hold up under nitro.

Got Money? Send it to me, I'm a Heli Addict.

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 05:14 PM  13 years agoPost 19
gigi

rrVeteran

Port-au-Prince, Haiti

My Posts: All  Forum  Topic

By design?

That's my theory, anyway, what not with the darn tank going for $15+, I think TT ENGINEERED the frame to puncture the front tit.

I'll try mending the couple I have sitting with a huge gash in the side, after reading this column. I have to say I did try fixing one before, with epoxy, but I snapped the expoxy glob right off when putting the tank in the frame. The mecanism for punturing the tanks doesn't even need a high-G crash to work flawlessly.

Quick update: I've used an old knife heated up on the oven to cut a small blob of PE from an empty 1-gal model fuel container, and I've "buttered" in on the hole. 3 passes later, I had me a tank I believe is stronger than the original item. .

Gigi

My heli spending has gone way down since I got a Honda 919 :-)

PM  EMAIL  GALLERY  Attn:RR  Quote
12-08-2004 05:28 PM  13 years agoPost 20
CACTUSJACK (RIP)

rrApprentice

State of Confusion

My Posts: All  Forum  Topic

After my first tank started the inevitable leak I bought a new tank, but before I installed it I used a Dremel and ground out the mounting holes in the frame a little bit, then filled them with black RTV silicone, let it harden over night then installed the new tank in its new "soft" mounts.
Haven't had a problem since.

.

X5X7 Animum Vestrum Negotium Agatis

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1724 views
HelicopterMain Discussion › Raptor Tank Repairs
 Print TOPIC  Make Suggestion 

 3  Topic Subscribe

Wednesday, January 17 - 10:22 pm - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online