Now for the tricky part. The plunger that operates the valve is a specific length. It is designed to work with the plastic POS that has nothing on the back of the valve. With the pop rivet we now have a "seat" that's going to sit on the plunger.
The plunger must be ground down so the valve will open when the plunger is in the "up" position. Here's the difference.
The rivet seat is around .035" so grind down the plunger that amount. It just so happens that the notch cut in the plunger is close to that number, so just grind it down until the notch is gone. . .
Dremel in a couple of notches. . .
Rinse off all the shavings and junk, slide your newly updated valves into the plungers . . .
Carefully reassemble. Here's the final product!!!! Congradulations, you just save a couple hundred bucks!!!
