Hi, been working on my 84 Brat. I have two issues. The ignition key cylinder get stuck and when I try to start it takes a few tries of turning the key cylinder and holding to get it to work, do I need to replace the whole cylinder or is there a switch? My oil pressure guage rises when I turn ignition on peggs out at top but then falls down and does not register, switch out oil sending unit and does same, car runs fine , think there might be a wire bad ground any ideas where to start, , thanks Ray in Seattle