ORIGINAL: BaldEagel
Sandor
Did the search and it seems that most who where getting problems with the Orbit Clunk where using over a 120 size turbine, perhaps that was just a case of the Orbit clunk not being able to supply enough fuel for these, it seems strange that air is able to enter the feed pipe when the clunk is fully immersed in fuel, I would not have thought that the fuel itself had enough air in it to cause this and my thoughts are that the air is entering at the front of the tank through the joint at the cap, what do you think?
Mike
no the problem is the small openings with that clunck , it gets saturated with dirt very quickly.
let me try to explain.
the Skill clunck (2 stroke engine) uses about 1 liter of gasoline for every 30 minutes of running
skill recomends changing that clunck after 50 hours of operation
now lets say 50 hours is about 100 liters of fuel.
you can easely check that 100 liters for us jetjocks is about 1-2 months of flying or 400 minutes or 6.6666hours
.
some people have problems with them , some dont.
they are good no doubt.
now imagine a UAT bag wich is made with the same material BUT about 100 times as big in surface material.
there you can see the slim chance of a cavitation of your pump.
in real life you will notice that people with small engines almost never have any problems , but customers with large engine can have serious problems
still i exchange a UAT BAG once a year or 2 years..