Classic AquaSport

Aquasport Model Rebuilds, Mods, Updates and Refreshes => Osprey Style Hull Rebuilds => Flatback 22-2 Rebuilds => Topic started by: Levi on December 19, 2015, 09:11:26 AM

Title: 1968 Coburn and Sargent?
Post by: Levi on December 19, 2015, 09:11:26 AM
So I picked this up for $500 the other day including the trailer and a 1989ish 200 Johnson and all the rigging.
(http://i1227.photobucket.com/albums/ee421/levi_tsk/Mobile%20Uploads/IMG_20151219_085438681_HDR.jpg) (http://s1227.photobucket.com/user/levi_tsk/media/Mobile%20Uploads/IMG_20151219_085438681_HDR.jpg.html)
I was wondering if anyone else has a '68 c&s? Is it possible the year on the title is wrong?
Also the boat has two layers of paint over crazed gelcoat any suggestions on what to use to get the paint off? 
Do I have to take it to bare glass to prevent the crazing from coming through my new paint job?
Title: Re: 1968 Coburn and Sargent?
Post by: Capt. Bob on December 19, 2015, 11:57:17 AM
If you haven't already, start by reading a little history.

http://classicaquasport.com/smf/index.php?topic=265.0

I'll need to dig a little but I seem to recall at least one member here who owned your model, maybe more.

One of the original breeding stock for sure.

Good luck. :thumright:
Title: Re: 1968 Coburn and Sargent?
Post by: Levi on December 19, 2015, 12:39:00 PM
Yea I read that that's why I was wondering if the year on my title was wrong ? I figured that '67 was the last year for the Coburn and Sargent s?
Title: Re: 1968 Coburn and Sargent?
Post by: RickK on December 19, 2015, 05:23:38 PM
It could be a '67 sold in '68. HIN was not required back then so we can't be sure.
Title: Re: 1968 Coburn and Sargent?
Post by: Levi on December 19, 2015, 06:30:53 PM
Yea I looked on the hull and didn't see an HIN anywhere but it could have been painted over. Any idea where I should look out for one as I remove the paint?
Title: Re: 1968 Coburn and Sargent?
Post by: RickK on December 19, 2015, 07:12:54 PM
They weren't required until '72 so the best you can hope for is a plate like the one in Carl's boat - he has the oldest C&S (Aquasport) that we have here that I can remember.
http://classicaquasport.com/smf/index.php?topic=10014.0
Title: Re: 1968 Coburn and Sargent?
Post by: Aswaff400 on December 19, 2015, 07:25:22 PM
didnt the C&S hulls have wood stringers similar to prolines and the Aquasport brand have foam/fiberglass? my 68 Aquasport had/has foam/fiberglass
Title: Re: 1968 Coburn and Sargent?
Post by: RickK on December 19, 2015, 07:36:24 PM
I'm sure Carl will be around soon to help us out.
Title: Re: 1968 Coburn and Sargent?
Post by: CLM65 on December 19, 2015, 10:37:58 PM
Mine is titled as a 67 C&S, but to be honest I think the year was a "best guess".  It also was covered with paint, and when I sanded it off, I found a bit of crazing, especially on the bottom.  The professionals I spoke to said I need to get rid of the cracks or they will show back up.  At least with gel coat (I'm not sure about paint).

FWIW, mine had foam-filled fiberglass stringers.
Title: Re: 1968 Coburn and Sargent?
Post by: Callyb on December 20, 2015, 09:55:35 AM
To my knowledge, all of the C&S boats had the fiberglass stringer systems. It was one of their selling points (reference the 1966 magazine article in the gallery). Keep in mind the original sole is solid glass too, so if you find wood in the sole it is a replacement...

As far as the HIN goes, there would have been a Data/Capacity tag on the inside of the transom just to the port side of the motor cutout.
Title: Re: 1968 Coburn and Sargent?
Post by: Levi on December 20, 2015, 07:04:05 PM
There's no deck or stringers the previous owner (s) cut the deck out and replaced the stringers with a shody looking hack job using 2x6's and 2x2's and did an even WORSE hack job on the transom. Everything has to come out and I'll be replacing it with composites.
Looks to have been rebuilt AT LEAST twice already judging by the look of the glass on the bottom of the hull all of that has to be ground down. I dont trust anything any of the previous owners did.
I'll probably just mold some fiberglass stringers on some melamine and do coosa or penske for the transom.
The cap is in OK shape but also has an extra layer or two of paint but SHOULD BE salvageable.
Probably going to do a half tower with a center pod containing two fish boxes a cooler and a 40 gallon livewell and a big casting platform up front  going to keep the rest of the deck wide open.
[img]http://i1227.photobucket.com/albums/ee421/levi_tsk/Mobile%20Uploads/IMG_20151219_085427472_HDR.jpg/[img]
Title: Re: 1968 Coburn and Sargent?
Post by: Callyb on December 20, 2015, 08:12:46 PM
Just in case you haven't run one of these boats before, they are really sensitive to weight. Make sure you plan everything out on a spreadsheet to get a good center of gravity number.

I'm typing on my phone, but I will write a better reply in the a.m.
Title: Re: 1968 Coburn and Sargent?
Post by: Levi on December 21, 2015, 07:33:30 AM
No I haven't run one before but I was planning on keeping everything at or near the center of gravity so nothing changes. The fuel tank will go below the deck underneath the center pod and and the starting and house battery will go in the transom with two deep cycles in the casting platform for the trolling motor. The only change I weight distribution should be having the motor on a porta-bracket (small block v6 E-tec) and I don't think that will effect much because the  livewell and most of the weight will be centered in the boat.
Title: Re: 1968 Coburn and Sargent?
Post by: Levi on December 21, 2015, 09:25:00 AM
(http://i1227.photobucket.com/albums/ee421/levi_tsk/Mobile%20Uploads/IMG_20151221_091727893_HDR.jpg)
Title: Re: 1968 Coburn and Sargent?
Post by: Aswaff400 on December 21, 2015, 02:03:54 PM
i would try to keep most of the weight around the center console.
heres a quick somewhat scale drawing of placement of everything in my boat and she ballanced out almost perfect, and requires very minimal tab adjustment
(http://i10.photobucket.com/albums/a148/recklesabandon727/scale%20fb.jpg)
Title: Re: 1968 Coburn and Sargent?
Post by: Levi on December 21, 2015, 02:24:34 PM
Yea my half tower will be on top of the pod in the picture of my last post so without a transom livewell and only two batteries and a motor in the stern should be fairly balanced correct or will I end up with too much weight forward?
Title: Re: 1968 Coburn and Sargent?
Post by: Aswaff400 on December 21, 2015, 02:53:26 PM
with both of my livewells empty and a full tank of fuel my boat rides about perfectly level, doesnt "feel" like theres too much weight forward, where as if i have less than a 1/4 tank of fuel and both wells full the bow does feel a little light. so i put the tabs down slightly. i also have a coffin box in front of the console that i keep my 3 cast nets in(18 lbs each). if you are near the tampa bay area(dont know your location) your welcome to check out my flatback and take it for a ride.

heres a couple pics showing the boat and weight differences

both wells empty, full tank of fuel
(http://i10.photobucket.com/albums/a148/recklesabandon727/1968%2022-2%20flatback%20rebuild/KIMG044224.jpg)

(http://i10.photobucket.com/albums/a148/recklesabandon727/1968%2022-2%20flatback%20rebuild/KIMG02942.jpg)

(http://i10.photobucket.com/albums/a148/recklesabandon727/1968%2022-2%20flatback%20rebuild/KIMG02952.jpg)

both wells full and full fuel

(http://i10.photobucket.com/albums/a148/recklesabandon727/1968%2022-2%20flatback%20rebuild/KIMG03002.jpg)

(http://i10.photobucket.com/albums/a148/recklesabandon727/1968%2022-2%20flatback%20rebuild/KIMG02992_1.jpg)

Title: Re: 1968 Coburn and Sargent?
Post by: Levi on December 21, 2015, 11:17:19 PM
That's a SWEET looking boat there! I think I was reading through your build thread the other day.
I think I should have about the same balance as you because the footprint of the pod will cover about the same footprint as your console and livewell leaning post though I may move it and the fuel tank sternwards a bit.
How far from the bow ( or stern) is the front ( or rear ) of your fuel tank?
I've noticed all of the build threads including yours have had wide transoms? Is there a reason or for this or is it to facilitate the transom livewell?
I'd like to keep the transom narrow at least at the corners if not all the way across though it will be at least 10" wide to fit the oil tank porta-bracket pump and two batteries but I will probably do a removable front to the transom area to make it easier to get in there and work on things.
My buddy said these boats don't like much weight in the back end and to avoid a transom livewell?
Is he correct?
Thanks for the all the replies I really appreciate the input and expertise.
Title: Re: 1968 Coburn and Sargent?
Post by: Aswaff400 on December 22, 2015, 07:37:47 AM
That's a SWEET looking boat there! I think I was reading through your build thread the other day.
I think I should have about the same balance as you because the footprint of the pod will cover about the same footprint as your console and livewell leaning post though I may move it and the fuel tank sternwards a bit.
How far from the bow ( or stern) is the front ( or rear ) of your fuel tank?
I've noticed all of the build threads including yours have had wide transoms? Is there a reason or for this or is it to facilitate the transom livewell?
I'd like to keep the transom narrow at least at the corners if not all the way across though it will be at least 10" wide to fit the oil tank porta-bracket pump and two batteries but I will probably do a removable front to the transom area to make it easier to get in there and work on things.
My buddy said these boats don't like much weight in the back end and to avoid a transom livewell?
Is he correct?
Thanks for the all the replies I really appreciate the input and expertise.

the aft fuel tank bulkhead is 8 ft forward of the transom, and the forward bulkhead is about 13 ft forward of the transom, my fuel tank is 59-3/4 inches long

yes, the transom is wide because of the livewell, there needs to be enough room behind for access to the porta bracket bolts. i also had mine slightly wider so it doubles as stern seating when just cruising around. and theres enough room to stand when fishing. its 24 inches from the transom-forward. my oil tank and engine rigging is in the starboard side, jack plate pump and trim tab pump are on the port side. my only complaint about my transom well is it is a little too deep so when i leave the boat in the water like i do most of the year there is always 2 or 3 inches of water in the bottom.

they definitely dont like a lot of weight aft, but at the same time they dont like weight forward and will bow steer like crazy if theres too much weight forward. i'd try to get most everything centered weight wise around the console. i also shortened the casting deck for more deck space and allows me to use a dock box as a coffin box for more storage. my 3 group 24 deep cycle batteriesfor the trolling motor are below the forward hatch under the coffin. my forward tower leg is 3 ft from the casting deck, and the aft tower leg is 2 inches forward of the aft fuel tank bulkhead.

(http://i10.photobucket.com/albums/a148/recklesabandon727/1968%2022-2%20flatback%20rebuild/KIMG0378.jpg)

also, i raised my deck about 5 inches which puts the deck about 3-1/2 inches above the waterline. even with both wells full, and someone standing in the aft corner, the deck stays dry and she still drains completely with the garden hose going full blast.
Title: Re: 1968 Coburn and Sargent?
Post by: Levi on December 22, 2015, 10:56:19 AM
Did you do the keel extension? Is there any reason it should not be done?
my buddy said I  should lean towards a 70 gallon tank? do you think that is necessary? what kind of mpg do you get and what should expect given the lighter lower displacement E-tec? 3mpg ? 4mpg? is anyone on here running the small block?
Title: Re: 1968 Coburn and Sargent?
Post by: Aswaff400 on December 22, 2015, 11:24:33 AM
i did extend the keel and with any kind of setback  bracket its a must do. my tank is 62 gallons and is enough for a full day of running. i only average 2mpg with my older 225 EFI. i have about 110 mile range with a little reserve. with any of the 150hp E-tec's, Optimax's, or any of the 150hp 4strokes you should easily get 4mpg. Captain Matt gets i believe 5.2mpg at cruise with his new Mercury 150 4stroke after testing a bunch of props. he was getting 5pmg with a 175 pro xs Optimax i have ran Matt's boat with the Optimax and she ran like a scalded dog. his boat his boat balanced out perfect. heres a link to his photo bucket for pics of his build http://s836.photobucket.com/user/captmattmitchell/library/?sort=3&start=all&page=1
(http://i10.photobucket.com/albums/a148/recklesabandon727/IMG_20130429_092741.jpg)[/URL]

about the only reason i haven't repowered wit a 2.5L Optimax or 150 4stroke is i do kinda like having a 40 mph cruise on glass days  :thumright:

heres an idea for the transom if you want to keep it simple, this is on a 24 Morgan at my work and the box in the center is completely removable. and large scuppers out the transom.
(http://i10.photobucket.com/albums/a148/recklesabandon727/IMG_20120815_161405.jpg)
Title: Re: 1968 Coburn and Sargent?
Post by: Levi on December 22, 2015, 06:12:04 PM
That's pretty much what I had in mind.
I also like this minus the livewell and a little narrower and I don't want to fight the livewell to get to the porta-bracket bolts been there done that no fun....
What kind of top end did Matt get on the 175 opti? I was leaning 175 or 150 HO E-tec depending on which I can get a better deal on though I haven't taken the 175 opti off the table either.
Title: Re: 1968 Coburn and Sargent?
Post by: Aswaff400 on December 22, 2015, 06:55:19 PM
175 is the perfect HP for flatbacks, Matt's boat topped out at i believe 44 mph, which is the point where it starts getting scary on a flatback. i have seen 47 mph on mine with a 225 and she gets real squirrely above 44 mph.
Title: Re: 1968 Coburn and Sargent?
Post by: dirtwheelsfl on December 22, 2015, 08:19:34 PM
Looks like were in the same zipcode?!

Mines on the lift if ya wana check her out/go for a spin.   You grab the sixer! 

Title: Re: 1968 Coburn and Sargent?
Post by: Levi on December 23, 2015, 03:45:32 PM
Dirt,
Sounds good man you're in Jensen? Probably have to wait until the wind lays down a bit though right? Been BLOWING here lately between the wind and the  the high temps I haven't even bothered to fish except for last Thursday where I got pretty much skunked pompano fishing.
Aswaff,
That's PLENTY fast for me.
What exactly do they do above 47 mph?
Title: Re: 1968 Coburn and Sargent?
Post by: Levi on January 22, 2016, 11:11:55 AM
Got started Wednesday by blocking up the hull on the trailer  and moving the bunks so that the hull is sitting on the keel and the chines instead of the outside skin.
Chris (dirtwheels) came over yesterday to get a poly tank I had and gave me some pointers on getting the hull blocked  up square and true and how to get the hook out of the bottom and the bow out of the transom. After he left I finished getting it blocked up and started the transom tear down with went well because what wood that wasn't rotten wasn't bonded to the outter skin and ALL the secondary bonds were BARELY stuck down.
I got most of it out before I ran out of daylight. Need to get my cutoff wheels and my sawzall back from my brother today so that I can hopefully finish this up when the weather clears either tomorrow or Sunday.
Title: Re: 1968 Coburn and Sargent?
Post by: dirtwheelsfl on January 22, 2016, 06:58:07 PM
Didn't think getting that transom out would be a problem  :035:
Title: Re: 1968 Coburn and Sargent?
Post by: Levi on January 24, 2016, 01:58:29 PM
No I didnt think i was going to be bad at all and it was even easier than I thought I guess it's a testament to the previous owners craftsmanship or lack thereof...
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