One of the outcomes of our little ?Valve Handle? problem on the RV -3 was a post from a member (I beleive it was "Gasman")that said ?if the handle is on the wrong way, it can be easily fixed by taking the valve apart, driving out a pin that holds the nylon valve seat to the shaft, reversing it 180 degrees, and putting the pin back in.? This was so simple and elegant of a solution, I just had to take our spare valve apart and have a look. Sure enough ? it?s THAT simple! This trick allows you to use the stock handle, or the aftermarket handle with a ?D-Shaped? hole if you wish, and orient the pointer the way you want it. Yolu don?t even have to change the valve body in the airplane ? just the stem assembly (once you drain the tanks down low).
Here?s the body in the vice ? just put a wrench on the big nut to open it up. Keep the parts in the correct orientation and order as it comes apart:
Here?s the stem with the nylon ?ball? seat on the end:
Just drive out the little pin, turn the seat 180 degrees on the shaft, put the pin back in?and the ?flat" on the shaft is where you want it:
Reassemble your valve, taking care with the O-rings, and you?re done.
Paul
Here?s the body in the vice ? just put a wrench on the big nut to open it up. Keep the parts in the correct orientation and order as it comes apart:
Here?s the stem with the nylon ?ball? seat on the end:
Just drive out the little pin, turn the seat 180 degrees on the shaft, put the pin back in?and the ?flat" on the shaft is where you want it:
Reassemble your valve, taking care with the O-rings, and you?re done.
Paul