I bought some old school Z1s (well, 2006) and purchased the shock pump adapter off CRC. http://www.chainreactioncycles.com/sks-marzocchi-adaptor/rp-prod25834
But it doesn't seem to work properly. when I screw the valve in as tight as I dare it doesn't seem to go far enough in to release the pin. The only was I can release air is by sticking an allen key in the valve.
I have managed to put air in by tightening the adapter super tight and pumping the shock really fast, but the gauge reading is all over the place - I dont think its measuring the pressure in the forks - just the pressure inside the pump as the valve isn't fully open.
I really need to know the pressures as there is no less than 4! valves on these forks!
Has anyone else had this problem or do I just have a dodgy adapter?