I am overhauling a Mares MR12 III 2nd stage and having problems adjusting the lever and freeflowing. Installed a new seat, cleaned up seat orifice assembly, spring appears fine, etc but when I reassemble , the lever action seems inconsistent and freeflows. THE tech manual states something about threading the hose connector to the seat assembly leaving a certain space, but it does not make sense to me. It seems like I should just be able to tighten all the connections with the O RIngs and be able to adjust the lever?
I have worked on AMF swimmasters before with no issues. Any suggestions.
Thanks
Red Diver