Quote:
Originally Posted by dcb
Cool, what is the diaphram about? Is inlet pressure applied to the non-spring side?
I just realized looking at this that the "marble" is probably the same "density" as gasoline. A heavy marble might not be as accurate, it would have too much inertia, and tend to sink to a low spot, and a light one would tend to float.
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yes, the spring pushes against inlet pressure.
The diaphram is an accumulator to damp the fuel pump pulses. Providing a more constant pressure to the restricting nozzle. Which is just brass jet.
The correct ball was made of hard plastic or rubber and was the same density as gasoline. It melted either from heat or fuel. the ball needs to be opaque. The ball in the photo is for illustration purposes. It is from a straight pin and the wrong material. I am looking for a black 0.250" glass or plastic ball.
the light source failed and I am going to replace it with a LED. But even with a ball bearing in inside and my flashlight, I can get the display to count fuel by blowing thur it.
I am going to put it on my mechanical injected diesel.