Ram is hard starting again ...
#31
RE: Ram is hard starting again ...
ORIGINAL: burban2002
I was thinking about that, and it makes sense, but then how does an air brush work? the air rushing by pulls the paint right? Couldnt the fuel do the same thing? I think you are right though jakebrake
I was thinking about that, and it makes sense, but then how does an air brush work? the air rushing by pulls the paint right? Couldnt the fuel do the same thing? I think you are right though jakebrake
#33
RE: Ram is hard starting again ...
Batphreak, not to start anything butI am afraidI am going to have to disagree with you, even if the fass outlet pipe wasn't hooked to anything it still would have enough pressure on it that a small hole would still be a leak out an air brush has a small venturi where the tube from the paint cup comes into the body, it is this necking down that creates the suction. any leak after a pump will show up as a leak out not in.
#34
RE: Ram is hard starting again ...
I didn't say that a hole definitely would let air leak into the fluid in that case, only that it could. You are correct that several conditions have to be met for that to happen. Basically for the hole to let air in the velocity of the fluid has to be high enough that the pressure in the hose becomes less than atmospheric. If the friction between the hose and fluid is enough to keep any pressure in the hose above atmospheric then a hole will be a leak. For reference, here is what we're talking about:
http://en.wikipedia.org/wiki/Venturi_effect
Necking down the tube is the easiest way to bring the fluid velocity higher, that is why connection points are the most likely spot most couplers have an ID smaller than the tube/pipe they're connecting. Another way to create this neck point is if the hose attached to the pump is too small. All bets are off when the outlet of this hose has a restriction, though.
Mayfair, sorry about the major hi-jacking. Did you get that hard start solved?
http://en.wikipedia.org/wiki/Venturi_effect
Necking down the tube is the easiest way to bring the fluid velocity higher, that is why connection points are the most likely spot most couplers have an ID smaller than the tube/pipe they're connecting. Another way to create this neck point is if the hose attached to the pump is too small. All bets are off when the outlet of this hose has a restriction, though.
Mayfair, sorry about the major hi-jacking. Did you get that hard start solved?
#35