3m SIB / RIB

[TJR]

Originally Posted by Fenlander

PTFE is a bit of a false repair (but if it works it works) as the seal should be on the O-ring not the thread and normally hand tight they will hold back 15psi of a high pressure air floor never mind the couple of psi you are probably at.

Yeah exactly, I’ve been doing it up super tight on the last few attempts to try and stop the leak and it gets to this point (photo above) kinda leak and I can’t get it any better.

I would agree the o-ring creates the seal.
However I’ve tried the valve from the keel & opposite side and the problem still persists,

[Fenlander]

So it must be the hex boss is distorted or hairline cracked in some way.

[TJR]

Originally Posted by Fenlander

So it must be the hex boss is distorted or hairline cracked in some way.

Yeah mate that’s what I’m beginning to think, I’ve slapped some PRFE on and it slowed the leak a little, I’ve just put some more on and left it see how it hold up.

But I think you are right I think there is a crack in the boss