You may find that the O-ring has either been damaged in some way, either by being squashed or nicked, or it may just be old and stretched.
They don't need to be out by much to fail/leak.
I would try a new O-ring myself.
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You may find that the O-ring has either been damaged in some way, either by being squashed or nicked, or it may just be old and stretched.
They don't need to be out by much to fail/leak.
I would try a new O-ring myself.
This is driving me completely insane. I've remounted the entire pump 5 times. Each time letting the pump dry completely. I've ordered new Feser O-rings for the pump. Mounted one yesterday. I can still see moisture outside the O-ring. There's still some water coming out somewhere. This is completely beyond reason, I cannot think of any reason or anything why this thing is leaking. It's leaking less than with the old O-ring. But still.
I am going to shoot someone. I really hope it's just moisture still stuck inside the pump. And I also hope it will get out by itself, because I am NOT taking the pump apart again.
The only other sugestion is, please don't shoot me, but remove the pump again(sorry) pull it apart as much as you can,
then leave it either in the sun or a warm place for as long as you can, a day would be good.
Re check the o-ring to see if A, you have been given the right size and then B, that it has not been damaged.
Then when you are ready to put the pump back together, put a small smear of Vaseline® Petroleum Jelly or rubber grease on the o-ring, just a tad.
This will help keep the o-ring soft and also help it to move into position and not be pinched.
Then tighten the screws up in a star formation, like you do for your CPU block or the head of a car and try not to over tighten the screws.
Take your time with it, good luck.