I have a Lancair 320.  I just found a leak coming out of the end of the left main hydraulic cyl on the high side.  It is not coming out of the fittings, it's actually coming out of the end where the stop jam is.   It's just a small leak but I rebuilt this cylinder once already cause I thought there was an internal leak so my opinion is this is a defective cylinder. 

 

There is a label on it saying ARO-TEK from Washington State.  The new cylinders on the Aerocraftparts.com website look different so I'm wondering if Lancair switched to a better replacement cylinder.

 

Anyone know?  I just don't want to drop another couple hundred bucks if I don't have to.

 

Thanks.

 

Matt