Overhead Hatch Seal Replacement

And

Opening Port Seal Replacement

For

Atkins and Hoyle Products

(By Tom Assenmacher, Kinsale, VA)

 

We’ve recently (May and June 2008) performed a few needed maintenance projects on our 1975 MK-II Yawl SHEARWATER - namely replacing the gaskets on both of the overhead Atkins and Hoyle hatches, and replacing the gaskets on the 6 Atkins and Hoyle opening ports. 

 

Overhead Hatch Seal Replacement

The proper gasket material (.5" round neoprene 'cord'), for the overhead hatches is available from Clean Seal at http://www.cleanseal.com/cord-stock.html - it's the solid 'cord' #6500. It takes about 80" of the 'cord' to do one hatch (we still have some of the material available if you want to reseal your hatches). 

 

Old Gasket Removed From Hatch – Ensure That The Gasket Groove Is Clean!!
(Or You Won’t Get A Good Seal)

 

 

This Is What The New Gasket Material Looks Like

 

 

 

Prefit The New Gasket Material Before Cutting – Allow A Bit Extra!

 

Apply A Thin Bead of Silicone (Not Too Much, but Not Too Little!)

 

Use a Good Grade of Silicone Caulk

After ‘gluing’ the new gasket into the hatch groove, clean any excess silicone from the gasket and the hatch frame.  Also, it’s advisable to have the gasket ‘joint’ at the ‘hinge’ end of the hatch.  Place a small amount of silicone on both ends of the ‘joint’ which will glue the 2 ends of the gasket together.  IMMEDIATELY install the hatch on the boat, and tighten the hatch ‘dogs’ (closures) and allow the silicone to set overnight to ensure a good seal.

 

 

 

 

Opening Port Seal Replacement

The material for the Atkins and Hoyle opening ports is available from McMaster-Carr (www.mcmaster.com) and is Item # 90125K51 (Commercial-Strength Neoprene Extra-Long Strip 3/8" X 1/4", Black) and is available by the foot.  It takes approximately 36” of gasket material to do one port.

  
(Go to the McMaster website and do a search on item number
90125K51)

 

 

Opening Port With Old Seal Attached

 

Old Seal Removed

 

Clean Out All Old Sealant, Corrosion And Dirt And Wipe Down With Solvent!
Ensure That The Gasket Groove Is Clean!!

 

This Is The New Gasket Material

 

Pre-Fit New Gasket Material And Apply A THIN Bead Of Silicone.
Note The Gasket Joint Is At The Top Of The Port (I.E., The Hinge End) To Prevent Leaks!

 

The Completed Gasket Replacement.

After ‘gluing’ the new gasket into the port groove, clean any excess silicone from the gasket and the port frame.  Also, it’s advisable to have the gasket ‘joint’ at the ‘hinge’ end (or upper part) of the port.  Place a small amount of silicone on both ends of the ‘joint’ which will glue the 2 ends of the gasket together.  IMMEDIATELY install the port on the boat, and tighten the port ‘dogs’ (closures) and allow the silicone to set overnight to ensure a good seal.

 

 

We’ve had some terrific rainstorms this spring, and the ports and hatches haven’t leaked a drop (so far)!!

 

 

Hit Counter Visits since 7/7/08
Revised 7/2/2013