[C320-list] Emergency Tiller Port/Hatch

[Ade Bateman]

I think that is the Bomar deck plate and I had the same issue when I originally installed it. The previous one was completely cracked when I bought the boat and the replacement still let in a fair amount of water. However, I used some Super Lube Silicone Lubricating Grease all around the seal of the removable plate and reinserted it and since then it has been watertight (almost 4 years).

-----Original Message-----
From: C320-list <c320-list-bounces at lists.catalina320.com> On Behalf Of Dave Hupe
Sent: Sunday, October 4, 2020 11:52 AM
To: c320-list at lists.catalina320.com
Subject: [C320-list] Emergency Tiller Port/Hatch

I replaced my emergency tiller port in 2017 after discovering that it was the source of a big leak.  I used this https://www.catalinadirect.com/shop-by-boat/catalina-270/hull-deck/cockpit/inspection-port-8-38quot-od/ .
The replacement helped significantly to reduce/eliminate leakage into the stern.  However, the seal was not very tight to begin with even when new, and I'm getting a fair amount of leakage again.   
Has anyone found a better port/hatch replacement?  I'm thinking one with a screw-in cap might be better to get a water seal (although I understand it would be more difficult to remove, especially if not opened routinely). Ideally a replacement would mount using the same mount holes (I know, I'm dreaming). 
Dave Hupe
1994 C320 (#32)
Holland, MI