I have a bad leak coming from the metal elbow where it meets the pump. Is there supposed to be a gasket or rtv at that connection? I just took it off and cleaned both surfaces then used a makeshift gasket only for it to leak worse. Took it apart again, cleaned once more then tightened it up without a gasket but it still leaks... Its just a constant steady drip until the resivoir empties. The pump was a z1 rebuild and the elbow is oem.