Been playing with the secondhand external wastegate I got last September. Still won't control boost. Took it apart and found the o-ring not sealing between the 2 halfs of the gate. The leak is located on the boost side of the diaphragm not the vacuum side. Question is, can I pookie it up with some high temp copper RTV or do I need another o-ring? This is the 46mm gate from GN1. I believe full throttle sells the same one.