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OS Bubbleless clunk or fuel magnet?

MartyH

Elite Veteran

USA

Which do people prefer? The sinterred looking OS bubbleless clunk or the need to be replaced now and then fuel magnets? I'm looking towards getting away from header tanks in the fleet.

02-28-2009 Over year old.
Eagle2bravo

Veteran

Out flying somewhere

I use the OS bubbleless with no problems and no header tank on a 600n.

T-rex 600n super pro , Trex 450 se, Gaui 200, Trex 500, Blade cx, . "If ya plant corn, ya get c

02-28-2009 Over year old.
bkervaski

Elite Veteran

Birmingham, AL, USA

Fuel magnet will do a better job but only if you're not running muffler pressure as the exhaust gasses will eat the foam, do a search, there are a lot of threads on this.

02-28-2009 Over year old.
HOMEPAGE  
jbdww

Elite Veteran

Round Rock, Texas

I use the OS Bubbles and it works great and I do not have to worry about it.
Joe

Skids Up
http://www.jbdww.com
http://twitter.com/jbdww/

02-28-2009 Over year old.
HOMEPAGE  
Ghostrider

Elite Veteran

San Diego, CA

I tried both and the fuel magnet works much better when you get down to the end of the tank.

As far as muffler preasure and the fuel magnet, just re-fuel after each flight. Keeping the magnet in the fuel (wet) will keep it going for months and months. I think I am coming up on a year on one of mine.

02-28-2009 Over year old.
lightningrc

Elite Veteran

UK

Yes I agree , as today I changed the fuel magnet to a bubbless clunk because the fuel magnet started breaking up.

I noticed there was a tiny bit of fuel left in the main tank and the header was on 3/4.

Not a big problem as my timer had gone off ages before.

But with the magnet it used to suck every drop out of the main tank before the header was used.

The magnets are better but more hassle , im happy sticking with the bubbless clunks.

02-28-2009 Over year old.
HOMEPAGE  
LONEWOLF2440

Elite Veteran

MYRTLE BEACH S.C

Os bubbless clunk here love it

MIKADO LOGO 600 TREX 550

02-28-2009 Over year old.
RC.

Veteran

Bay Area Ca.

+1 for OS Bubbleless clunk imo

RC.
MI Flyers.

03-02-2009 Over year old.
Avropilot

Veteran

Murfreesboro, Tennessee

Fuel magnet for me. However the fuel magnet and OS bubbless do not perform the same tasks. FM collects fuel in the tank by absorption then supply's that fuel to the motor. OS bubbless stops bubbles. Pour 2 ounces of fuel into a handful of bee bee's and see how much they absorb.

Waiting for parts

03-02-2009 Over year old.
wings19

Key Veteran

Tucson, AZ

OS Bubbleless

I used to run Fuel Magnets but quickly got annoyed with them. You always have to remember to keep them covered with fuel or push out the exhaust fumes and I would forget from time to time. I didn't want to have to worry about that.

I swiched to the OS clunks, I don't run header tanks in my N9 or 600N. They get every last drop of fuel and no problems! No maintenance either.

Nick
If the wings are traveling faster than the fuselage, it's probably a helicopter

03-02-2009 Over year old.
lightningrc

Elite Veteran

UK

What we need now is a clunk line which will last the life of the model and we are sorted

Otherwise dont forget every few months to still replace the clunk line tube

03-02-2009 Over year old.
HOMEPAGE  
wings19

Key Veteran

Tucson, AZ

Hayes fuel line lasted me all last season with no problems!

Nick
If the wings are traveling faster than the fuselage, it's probably a helicopter

03-02-2009 Over year old.
Ghostrider

Elite Veteran

San Diego, CA

Hayes fuel line lasted me all last season with no problems!
+1

03-02-2009 Over year old.
lightningrc

Elite Veteran

UK

Dont think we have that over here in the UK , what size inside bore is it ? as I had 2mm tubing the other day and it played hell with my Trex700 with OS 91 in it , just could not get the mixtures right .

Moved back to The bigger bore Align tube and its fine .

03-02-2009 Over year old.
HOMEPAGE  
USNAviationjay

Elite Veteran

Houston Tx USA

I like both.
but I prefer the OS BL Clunk as I dont have to worry about the foam wearing out, or keeping fuel in my tank.

Team SAB NA Houston Rep Goblin700 770 630 and 500

03-02-2009 Over year old.
jbdww

Elite Veteran

Round Rock, Texas

I was using the FM and had a couple of forced autos because I forgot to put fuel back in after a flight. FM does get every last drop, but there is more to remember. Usually after a flight I am grinning so much that I forget to add fuel to protect the FM.
I also use hays and that stuff last forever.
Joe

Skids Up
http://www.jbdww.com
http://twitter.com/jbdww/

03-02-2009 Over year old.
HOMEPAGE  
wings19

Key Veteran

Tucson, AZ

Not sure what the size of the Hayes line is in mm... I am pretty sure it is the standard size(if that tells you anything). It is very flexible and lasts forever though. I have been running it in my N9 and 600N with great success along with the OS clunks.

Nick
If the wings are traveling faster than the fuselage, it's probably a helicopter

03-02-2009 Over year old.
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OS Bubbleless clunk or fuel magnet?

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