Quote:
Originally Posted by 4v6
You are 100% correct! 
That photos around 2 years old, it was part of an experiment (along with the smoke tests) to see how the air was moving in these ports.
The whole port was lightly sprayed with the developer ( that white powder) then the port attached to a vacuum and the flaw finder/dye introduced via aerosol into the stream- but very lightly indeed and across the port mouth at around a foot away.
It shows up as red staining on the port walls where the dye drops out of suspension (a bit like fuel) and although its not 100% representative of whats going on it does at least give some visual assistance.
Incidentally, most all of it falls out of suspension at the splitter just at the turn and into the bowl.
Turns out the airs not actually doing much there in comparison to the rest of the port and it shows up as being so when you modify the splitter area- not a lot happens.
Most of its going over the SSR and round the outside of the guide and over it. |
I honestly never thought about using Type II dye that way. I'm an NDT person by trade and it's always cool to see stuff like this.