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Author Topic: 1970 22'2 FLATBACK REBUILD  (Read 10521 times)

March 02, 2008, 07:12:39 PM
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wysongja

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1970 22'2 FLATBACK REBUILD
« on: March 02, 2008, 07:12:39 PM »
My Dad and I just purchased a 1970 22'2 Flatback, and are getting ready to start  the rebuild.  We have been looking for a 22'2 for a year or so and are looking to build a strong, safe fishing and weekend cruiser.  Apologies to the purist's but we are looking to get her in the water by June, thus she may not be show worthy but she will be solid.

We have a few questions?  I tried to find some of the answers in previous discussions but could not find a few.  Pictures below are what we are starting with.

A few questions we have

1) Our transom was already started by the previous owner, he rebuilt the factory style transom.  We would like to extend it to a full transom.  Is this a simple as cutting a template for the void and glassing in a sandwiched 1.5" over the entire front and back of transom?  We were thinking of cutting a one inch deep cut 1/4" width in the center of the rebuilt transom and the same in the center of the additional piece to fill the void and then placing a fiberglass edge in the groove and connecting the in place transom to the to help bond, any idea if this is needed?

2)  Our 22'2 has what looks to be a spot for an under floor fuel tank, it is just before the casting deck.  What sized fuel tank will fit in this space?  MIne measures 8"x22"x36"
How do you suggest running a fill pipe?

3)  Our stingers seem to be pretty nice, however one of the stringers seems to be filled with water logged foam.  I have read in previous threads that you can buy foam to replace the original.  What is this foam called?  Is it easy to find.  Thanks for your help.

March 02, 2008, 07:33:43 PM
Reply #1

wysongja

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Here aare the photos
« Reply #1 on: March 02, 2008, 07:33:43 PM »





March 02, 2008, 10:52:31 PM
Reply #2

RickK

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Re: 1970 22'2 FLATBACK REBUILD
« Reply #2 on: March 02, 2008, 10:52:31 PM »
Welcome Aboard wysongja :!:  :!:
You in FL?  Looks like some Australian Pines in your pics. We have plenty of people that can answer your questions on your 22-2 and they'll pipe up shortly.  I'll help where I can until they come on-board.
Quote from: "wysongja"
My Dad and I just purchased a 1970 22'2 Flatback, and are getting ready to start  the rebuild.  We have been looking for a 22'2 for a year or so and are looking to build a strong, safe fishing and weekend cruiser.  Apologies to the purist's but we are looking to get her in the water by June, thus she may not be show worthy but she will be solid.
Congrats on the find 8) Doesn't have to look showroom new but if you're going to go through the pain, might as well take your time and it can look real nice AND be solid.

Quote from: "wysongja"
1) Our transom was already started by the previous owner, he rebuilt the factory style transom.  We would like to extend it to a full transom.  Is this a simple as cutting a template for the void and glassing in a sandwiched 1.5" over the entire front and back of transom?  We were thinking of cutting a one inch deep cut 1/4" width in the center of the rebuilt transom and the same in the center of the additional piece to fill the void and then placing a fiberglass edge in the groove and connecting the in place transom to the to help bond, any idea if this is needed?
I'll let the transom specialists answer this.
Quote from: "wysongja"
2)  Our 22'2 has what looks to be a spot for an under floor fuel tank, it is just before the casting deck.  What sized fuel tank will fit in this space?  MIne measures 8"x22"x36"
How do you suggest running a fill pipe?
On that year boat I believe this was a baitwell.  Does it have windows through the hull in the bottom on the well? This pic is from a members '68 FB.  It also had factory plumbing in it.

Quote from: "wysongja"
3)  Our stingers seem to be pretty nice, however one of the stringers seems to be filled with water logged foam.  I have read in previous threads that you can buy foam to replace the original.  What is this foam called?  Is it easy to find.  Thanks for your help.

You can find the foam at any fiberglass place.  There is a place here in Sarasota - http://www.fiberglassservices.com/ - that can help you if you can't find the stuff locally.

Again, Welcome Aboard!!
Rick
1971 "170" with 115 Johnson (It's usable but not 100% finished)

1992 230 Explorer with 250 Yamaha

March 03, 2008, 07:39:33 AM
Reply #3

wysongja

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Thanks for the help
« Reply #3 on: March 03, 2008, 07:39:33 AM »
I have seen others discuss the "glass bottom" and have seen some pictures.  It looks like ours may have had those in the past but have been patched after market.  Have you ever seen a fuel tank put there?  If not where do you recommend we put it?

March 03, 2008, 01:28:34 PM
Reply #4

RickK

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« Reply #4 on: March 03, 2008, 01:28:34 PM »
The windows were not standard but an "upgrade" so maybe yours never had them.  We have some price lists in the photo gallery that point this out.
Don't know about a fuel tank being put in there.
Rick
1971 "170" with 115 Johnson (It's usable but not 100% finished)

1992 230 Explorer with 250 Yamaha

March 03, 2008, 02:23:46 PM
Reply #5

Mad Dog

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Re: Thanks for the help
« Reply #5 on: March 03, 2008, 02:23:46 PM »
Quote from: "wysongja"
 Have you ever seen a fuel tank put there?  If not where do you recommend we put it?


Based on the cut-out in the starboard stinger and the holes in the cap I would conclude that the fuel tank was between the starboard and center stringer, behind the glass bottom ports.  Based on the angle of the deepest and narrowest cut out I would guess the tank was mounted forward in that slot and was probably rather long.

You can see in my rebuild that the '75 semi vee only has two stringers.



I have a similar notch up near the casting deck in the starboard stringer.  Both the fill hose and the vent hose passed through that slot.  My tank fits between the stringers.  It was 60"l x 23"w x 8"d = 60gal.

If you want much fuel capacity you may need to install a tank on both sides of the center stringer which requires fillers on both sides. I bought a new custom made tank from Speedy Tanks (http://www.speedytanks.com/tank/index.html).  They can set you up.

The only other rebuild of this model I have seen the owner removed all the stringers (delaminated), patched the bottom ports and put back laminated stringers.  They followed Shine's rebuild plan pretty closely.

MD

March 03, 2008, 04:24:47 PM
Reply #6

johnnyhunt1

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« Reply #6 on: March 03, 2008, 04:24:47 PM »
nice boat mine is 67 flatback i live puntagorda fl in process finishing mine any questions give me a call be glad to help in any way i put my tank under deck like you want to johnny 941-628-6533 67flatback you gotta love them best boat ever made in imop

March 03, 2008, 05:04:37 PM
Reply #7

wysongja

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We appreciate the help
« Reply #7 on: March 03, 2008, 05:04:37 PM »
I actually just moved from Bradenton to Sanford for a promotion.  I am selling my house on Wares Creek(off Manatee River).  My Dad and I love fishing Manatee River and South Tampa Bay.  The 22'2 is the perfect baot for that area, we intend to use ours on mosquito lagoon/hallover canal(near cape canaveral) and sneak out in the Atlantic on calm days.

March 03, 2008, 06:17:16 PM
Reply #8

wysongja

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Fill and Vent Hose
« Reply #8 on: March 03, 2008, 06:17:16 PM »
We are trying to figure out how to mount the tank under the floor and have the fill and vent hose not come up through the deck.  How is this done?

March 03, 2008, 06:49:29 PM
Reply #9

LilRichard

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« Reply #9 on: March 03, 2008, 06:49:29 PM »
First, congrats on the new boat.  Let me answer a few questions...

- The tank was never under the floor of that hull.  The tank was in the center console, and the fill/vent were mounted in the console.  Check out Fishbonz for example.

Typically to get a tank under the floor - you have to cut a section of the middle stringer out.  I am not recommending that, but it is how you would typically get a tank in there.  If you decide to do that, you will need to add some bulkheads.  

- I am not thrilled with the look of that transom.  It may be an optical illusion, but it looks like they glassed over the bottom paint?  Could you provide some better detail pictures please?

- Last - you need a two part polyurethane foam to pour back in the stringers.

If you look around the rebuild section and do some reading, I thin you may find some very good detail as to how to proceed.  Post up lots of pictures, and keep the questions coming.

March 04, 2008, 09:13:29 AM
Reply #10

wysongja

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transom
« Reply #10 on: March 04, 2008, 09:13:29 AM »
It has been glassed over the bottom paint.  How big of a problem is this?  Have you ever seen anyone convert a standard 22'2 transom to a full tansom without removing the standard?

March 04, 2008, 10:11:06 AM
Reply #11

LilRichard

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« Reply #11 on: March 04, 2008, 10:11:06 AM »
That is a BIG problem - means NO ADHESION.  I am not being an alarmist when I say this, but get rid of the transom and start over.  I would not trust a transom built buy anyone who is ignorant enough to put fiberglass over bottom paint.  

Cut it out, build yourself a full transom the RIGHT way.

March 05, 2008, 06:57:43 AM
Reply #12

wysongja

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« Reply #12 on: March 05, 2008, 06:57:43 AM »
Makes sense.  He are thinking of having a custom fuel tank made and putting it under the front deck(between the floor and the raised deck.  Probably around 30 gallon.  Has anybody ever done this?  Any potential problems?

March 05, 2008, 07:44:01 AM
Reply #13

LilRichard

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« Reply #13 on: March 05, 2008, 07:44:01 AM »
Potential problems are weight distribution and loss of usable storage space.  I think both could be overcome, but just something to consider.  I know my boat doesn't have a ton of storage...

March 14, 2008, 01:52:58 PM
Reply #14

wysongja

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« Reply #14 on: March 14, 2008, 01:52:58 PM »
Latest update.  We decided to leave our stringers because they were in really nice shape, but we wanted to replace the foam. My Dad came up with this idea. We cut the top of the stringers off and left an edge about 1".  After taking the foam out we cut marine plywood into strips that would fit under the lip of the stringers.  We drilled in screws so we would have something to hold onto.  After we poured the foam and it was still expanding we put the plywood in place and held it under the lip until it sealed tight.  Then we replaced the cut out fiberglass and re glassed them in.  What do you guys think?








 

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