Ok I took mine apart. it was solid rusted thru. I mean I banged it with a hammer to release it from its rusted bond, with no luck.
the gasket inside the pump was gone, and there was no fixing it. without juryrigging it I said forget it.
so I went to Pep Boys and bought this emergency trunk kit, came with towing ropes, fix-a flat, saftey blanket, flash light,mini fire Extinguisher, screwdriver, plyers,
flares, triangle road sign, and best of all an almost replica of my OEM tire pump. and it all came in a nice zipper case with velcro on the bottom so it sticks to the NSX carpet in the back never slides around. for 49 Bucks.
done and sold.