I have a problem with the swivel fittings on both my ak 900 heads.
The one on the JB revolver is for service work so its not so critical as I am no evacuating with it.
The 46081 is a different story. This is an evac manifold and the hi-side will not register less than 28.9 to 29 "hg..
I can pull an excellent vacuum but it takes an hour and a half longer.
Had to retire it until I get this problem resolved.
Boss got my AKs from TTT and they sent us the swivel 90*s.
I Leak locked the fitting cause I was going to use the 46081 for evacuation but I figured "what the hell ?". Torqued the living day lights outta both manifolds but they leaked at a measly 200 PSIG and bubbled up w/Big Blue anyway.
I had to really wrench on both leakers to get them to stop.
The revolver manifold with the AK is good for service work.
The evac manual has a minute leak. It won't stop no matter how much it's tightened.
One of the posters put a pic of the swivel fitting using a gasket.
Maybe that is what I need stop this leak.
My low side reading on my AK stays at 30"hg while the hi side rises very slowly.