For a vented PYI, you need to make sure that the vent is high enough above the water level or you risk getting burps of water if you need to go into high reverse (e.g. when docking or emergency stopping). Some use a bottle that collect these burps. I plumbed the vent into the sink drain. As long as you open the drain occasionally, no issues.
Marek 1994 C270 Legato Ottawa, ON -------- Original message -------- From: Ken Heaton via CnC-List <cnc-list@cnc-list.com> Date: 2019-12-11 10:57 (GMT-05:00) To: cnc-list <cnc-list@cnc-list.com> Cc: Ken Heaton <kenhea...@gmail.com> Subject: Re: Stus-List Mechanical shaft seal options Is yours vented? The vent was added some years ago. With it you never need to burp the seal. We don't have the vent so occasionally we do have to burp it. If I ever replace it I will put the same dripless, but with the vent. Ken H. On Tue, 10 Dec 2019 at 13:48, Josh Muckley via CnC-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> wrote: Alright folks, I'm looking for thoughts on a replacement for my PYI dripless shaft seal. It has worked fine and I'm not afraid to stick with it but I'm looking for possible options or improvements. I've heard of Tides Marine making one and Sailor Sam's sells 4 different designs by the name Last Drop. I'll be pulling and truing the shaft, rebuilding the prop, replacing the cutlass bearing, replacing the seal. Anything else I'm forgetting while I have it apart? Thanks, Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray