Hi Mr Idaho Wolfman. What exactly wears out, breaks or goes south in this valve. Parts are no longer available but I have access to a fully decked out machine shop and am able to reproduce as necessary. Thanks. Harry.
Pulled apart priority valve and found 2 nicks by the taper in the bottom valve that screws into the block. Doesn't look machined, to irregular. About 1/4 inch long. Anyone seen this before?