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Discussion of diving methods and equipment available prior to the development of BCDs beyond the horse collar. This forum is dedicated to the pre-1970 diving.
jvanostrand
Diver
Posts: 21
Joined: Fri Aug 12, 2011 8:39 pm
First Name: John
Location: Waterloo Ontario

DA Navy 2nd stage seats

Sun Feb 08, 2015 1:03 pm

The 2nd stage seats on the Navies I just picked up won't come out easily. Before I tear into these I wanted to double check that indeed they are supposed to come out.
Navy Horseshoe.jpg
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antique diver
Master Diver
Posts: 2217
Joined: Sun Dec 10, 2006 12:50 pm
First Name: Bill
Location: North-Central Texas

Re: DA Navy 2nd stage seats

Sun Feb 08, 2015 6:25 pm

I never had one come out easily, but it can be done. Actually, the original schematics don't show the rubber seat separately, and apparently you had to buy the whole horseshoe assembly. We now know better, and can replace the rubber seat, but like you found out they are sometimes tough to remove. VDH has seats that will fit.
The older I get the better I was.

kworkman
Master Diver
Posts: 345
Joined: Thu Aug 08, 2013 4:17 pm
First Name: Keith
Location: Thornville, OH

Re: DA Navy 2nd stage seats

Mon Feb 09, 2015 1:01 am

I used brass picks and pretty much ended up digging a hole out of the middle before I was able to hook a corner and pull it out. Its almost as if the seat was set and then crimped in place. The mount was clean when it did all come out so that was a plus.

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antique diver
Master Diver
Posts: 2217
Joined: Sun Dec 10, 2006 12:50 pm
First Name: Bill
Location: North-Central Texas

Re: DA Navy 2nd stage seats

Mon Feb 09, 2015 7:05 am

I think you are right about them being crimped into place.
The older I get the better I was.

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captain
Plank Owner
Posts: 1440
Joined: Mon Jul 04, 2005 11:32 am
Location: LaPlace, LA

Re: DA Navy 2nd stage seats

Mon Feb 09, 2015 10:46 am

Yes, you had to buy the complete horseshoe. They are crimped in place and are usually very hard from age and have to be picked out in pieces.
Captain

jvanostrand
Diver
Posts: 21
Joined: Fri Aug 12, 2011 8:39 pm
First Name: John
Location: Waterloo Ontario

Re: DA Navy 2nd stage seats

Tue Feb 10, 2015 1:50 pm

Thanks for the help, I picked it out in pieces. Indeed my two were crimped in place. There is a ridge around the lip holding the seat in place which means it actually took a 5/16 x 1/16" seat. The standard DAAM/RAM second stage seat is a tad smaller in diameter. It doesn't fit under the crimp but it sits suitably and it appears it's going to work.

kworkman
Master Diver
Posts: 345
Joined: Thu Aug 08, 2013 4:17 pm
First Name: Keith
Location: Thornville, OH

Re: DA Navy 2nd stage seats

Tue Feb 10, 2015 2:00 pm

I think another post said to use some aqua seal or similar adhesive to hold the new seat in place.

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captain
Plank Owner
Posts: 1440
Joined: Mon Jul 04, 2005 11:32 am
Location: LaPlace, LA

Re: DA Navy 2nd stage seats

Wed Feb 11, 2015 10:56 am

I use a tiny dab of silicone sealer to hold the seat.
Captain

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