New AOS failing?

[kk2002s]

I am guesting that the 'J-tube' you mention is the tube that connects the TB to the AOS.
I would think that even a healthy AOS is going to be moving some oil (vapor) into the TB so the 'J-tube' would always have some oil in it. Just guessing here

All the problems I here about here with new AOS's not being very dependable has kept me from replacing mine. I bought a new AOS over a year ago, still sitting in the box.

[jb92563]

I installed a new one, after an AOS failure, from Pelican a couple years ago and no problems.

You do have to be careful with the bellows to ensure you get it installed properly as its quite tight in there and hard to see.

I used a bore scope to verify everything was fitted properly after the install.