Home › Forum › Ask A Member › Changing the line fitting o-rings on a Mercury gas tank › Re: Changing the line fitting o-rings on a Mercury gas tank
I’m homing in on it. I ordered dash 111 Viton o-rings, only to find they were too small. They are not thick enough. They are the same size as the ones I took out, that shrunk!! I have some dash 205s coming for tomorrow that I hope are right.
I figured out how to relieve the spring tension on the check ball, so you can work the o-rings: You pull the unit out of the tank and unscrew the pick-up tube. Then, push in on the ball and stick a small screw driver in the inlet tube mounting hole, to catch and hold the compressed spring. You are then free to work on the o-rings without the check ball being in the way. More tomorrow, when the hopefully proper o-rings come.
I made a cut-away of a female, fuel line end, which is similar in construction, so I could see how it was made. It is a press-fit and tight; so you don’t want to go trying to turn it or pull at it, because I believe it will break the little tabs that retain the male end…….
Long live American manufacturing!