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Author Topic: 1971 19-1 Rebuild  (Read 2517 times)

May 16, 2017, 08:22:38 AM
Reply #30

RickK

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Re: 1971 19-1 Rebuild
« Reply #30 on: May 16, 2017, 08:22:38 AM »
Before you re-foam the stringers I'd lam a strip of 1708 across the top in several places so they don't deform as the foam expands. Maybe every 2-3 feet.
Also now, in the back of your mind, is the time to start thinking if you'll have a tower or t-top and plan the reinforcement points.  If you can stay inside the stringers that makes it easy.
Also need to take a p-washer to the inside and get a good look at the current laminations and stringers.
Looks good though.
Rick
1971 "170" with 115 Johnson (It's usable but not 100% finished)

1992 230 Explorer with 250 Yamaha

June 04, 2017, 06:42:04 PM
Reply #31

Trigger

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Re: 1971 19-1 Rebuild
« Reply #31 on: June 04, 2017, 06:42:04 PM »
I decided to cut out the liner then finished removing all the foam.





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June 04, 2017, 06:45:45 PM
Reply #32

Trigger

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Re: 1971 19-1 Rebuild
« Reply #32 on: June 04, 2017, 06:45:45 PM »
What should I use for the dam for glassing the transom? Here are some more pictures.






June 04, 2017, 07:14:22 PM
Reply #33

RickK

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Re: 1971 19-1 Rebuild
« Reply #33 on: June 04, 2017, 07:14:22 PM »
Trigger, sorry no one replied to your posts until now. I think you need to beef the transom skin up from the inside (this will happen while putting in a new transom core) and use some good "putty mix" for the edge on the outside and then lay some 3/4 ounce CSM to shape it and then some 6 or so ounce cloth to to make it smooth and not build it up too much. Putty mix is a mix of resin and cabosil and chopped fibers. - that lower edge needs some beef added. I'd wait to fill/shape the lower edge until you have the transom in.
For the "dam", I'd use a sheet of melamine and screw from the outside into the 2" lip.  If you look at the rebuilds section there are a lot of examples (my rebuild too) of doing this.

I decided to cut out the liner then finished removing all the foam.
Looking at the pic below  - first off - nice work and the stringers look to be in great shape.
My concern is that you have not locked in the shape of the transom area = see the strap drooping? Do you still have the piece you cut out of the transom? If so, add it back long enough to get the structure right and then add blocks to the side of the hull, at the cap, and then lay a 2x2 or 4 across and screw into the blocks. You must lock this shape or you're creating a new hull. Oh - btw that is a killer storm you're looking at - where are you located?


Rick
1971 "170" with 115 Johnson (It's usable but not 100% finished)

1992 230 Explorer with 250 Yamaha

July 19, 2017, 03:22:25 PM
Reply #34

dbiscayne

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Re: 1971 19-1 Rebuild
« Reply #34 on: July 19, 2017, 03:22:25 PM »
in a different area - take a look at the stringers where they cross the forward bulkhead, you'll notice the vertical glass does not extend thru the bulkhead, probably the worst place not to have the stringer reinforced.  My hull, also a 191, had evidence of pivoting along this bulkhead.  After pulling the foam I extended the glass to bridge the gap thru the bulkhead.

 

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