1969 Correct Craft Barracuda |
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northcoastidol
Senior Member Joined: March-28-2013 Location: Garfield Hts Oh Status: Offline Points: 100 |
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Posted: December-18-2014 at 8:39pm |
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Always be ready for a run, the water does not wait for you!
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Jan, Still missed the question? Don't forget we'd love to see more pictures of both the Shepard and Dee Wite. |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Jan,
You must have missed my question. From the picture you posted, the Shepard looks like a DD but as mentioned, they did love the VD's.
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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It's the size of the 401K that really counts . . .
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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Nautilus
Senior Member Joined: June-25-2013 Location: West Union, SC Status: Offline Points: 131 |
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At my age, you learn to accept gravity. |
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Striving for mediocrity !
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peter1234
Grand Poobah Joined: February-03-2008 Location: United States Status: Offline Points: 2756 |
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if you are hoping to grab senior women you might need to put saggy between big and boobs
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former skylark owner now a formula but I cant let this place go
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63 Skier
Grand Poobah Joined: October-06-2006 Location: Concord, NH Status: Offline Points: 4269 |
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Thanks for the explanation Tim. I looked at a Peninsular 6.5 ad and talked to the seller last winter, had a 2:1 mated to it, but as you pointed out must have been thinking backwards about it.
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'63 American Skier - '98 Sport Nautique
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quinner
Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828 |
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Heavy metal and a Woody to get chicks, yea that should work!! You may want to keep the Ruffies as Plan "B" just in case!! |
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Nautilus
Senior Member Joined: June-25-2013 Location: West Union, SC Status: Offline Points: 131 |
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For now, I'll proceed with Michigan Wheel's recommendation. If I don't like the results, I can always change the transmission and/or prop.
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Striving for mediocrity !
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21169 |
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Your logic is backwards on the transmission... A low revving engine that wants to run higher speeds would benefit from a lower reduction or even an overdrive (<1:1) tranny. That would get prop speed higher (and allow use of a shorter prop).
High torque, low rev diesels usually go in larger/heavier/slower boats and the larger reduction further allows them to turn large props at low speeds. I think JohnB has a good theory on the power of attraction that old, loud boats have. |
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63 Skier
Grand Poobah Joined: October-06-2006 Location: Concord, NH Status: Offline Points: 4269 |
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Yes, I'd say that boat will work for your "purpose" quite nicely!
Don't some of the diesel inboards use 2:1 transmissions? I'd almost think that would be the ticket for the low rpm and torque of that engine. Very cool, I can't wait to hear it run. |
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'63 American Skier - '98 Sport Nautique
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Jan,
Was the Shepard originally a V drive? I know they loved to use them. |
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Nautilus
Senior Member Joined: June-25-2013 Location: West Union, SC Status: Offline Points: 131 |
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Yes. No need for water-jacketed exhausts. The engine will be completely exposed.
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Striving for mediocrity !
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62 wood
Grand Poobah Joined: February-19-2005 Location: NW IL Status: Offline Points: 4527 |
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btw, are the vertical tubes the exhaust/ you gonna run dry?
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62 wood
Grand Poobah Joined: February-19-2005 Location: NW IL Status: Offline Points: 4527 |
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WOW!! I have the same "YH" carb adapter on my bad 6 as your V12!
(just not quite as many of them) |
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Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7953 |
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That is a complicated engine! It must take a lot of patience and know how to get running right. Those old engines are a completely different beast having low rpm and hp, but massive torque. I've got a friend that is rebuilding a 1915+- Scripts V8 and I forget the numbers, but the rpm and hp are very low, but the torque is very high.
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Nautilus
Senior Member Joined: June-25-2013 Location: West Union, SC Status: Offline Points: 131 |
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The prop is a little rare but is built by Michigan Wheel. They did the calculations based upon length, width, weight, length at waterline, transmission ratio, horsepower, etc., etc. This engine has a ton of torque. Frankly, I'll take whatever speed I can get. I'm just building it to pick up hot senior chicks with big boobs. Think it'll work?
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Striving for mediocrity !
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Jan,
Thanks for filling myself and others in on the engine. It's sure interesting and I hope you post the results. I'm a little surprised on Michigan's 20" pitch recommendation but they are the experts. The RPM's are low but so is the HP for the heavy hull of the Shepard. The 1.23: 1 sure will help. One thing you didn't mention is the torque. I'm sure the engine has a pretty decent stroke and like so many of the engine back then had plenty of torque. Keep us informed. |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Online Points: 21169 |
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That's not too oddball of a size, at least if he's running a 1-1/8" shaft. There were big block 1.5:1 boats that used similar sizes, though most were LH.
You must have quite a bit more than the original 215hp if you expect to see those kinds of speeds! Neat engine for sure. |
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Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7953 |
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[QUOTE=Nautilus] I'll be using a 14/20 cupped nibral prop (per Michigan Wheel) which should allow 50-55 MPH at 3,600 RPMs.[QUOTE]
Wow, that's got to be a custom prop? |
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Nautilus
Senior Member Joined: June-25-2013 Location: West Union, SC Status: Offline Points: 131 |
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The engine is a 1947 American-LaFrance V12-J, 527 cubic inch displacement, 215 HP @3,600 RPMs, OHV, 24 spark plugs, two 12-point distributors each with two sets of points and four coils. The 12-spark plug version was originally used in mid-1930s Auburn automobiles. When Auburn went bankrupt, American-LaFrance bought the rights to the engine and re-worked it for firetruck use, including secondary heads holding four spark plugs each and a second distributor driven from the generator. It originally had two top-mounted carburetors and cast iron exhaust/intake manifolds.
I designed/built an aluminum intake/exhaust manifold sending the exhaust straight out the top and allowing the fuel to be supplied by six Carter YH marine carbs. The engine will drive a PCM 1.23:1 transmission through a Bentzen adapter and flywheel through an aluminum BBC bell housing. I'll be using a 14/20 cupped nibral prop (per Michigan Wheel) which should allow 50-55 MPH at 3,600 RPMs. Now all I need is time and energy to work on it...and money. Donations accepted. |
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Striving for mediocrity !
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phatsat67
Grand Poobah Joined: March-13-2006 Location: Indiana Status: Offline Points: 6150 |
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Now that's a motor.
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62 wood
Grand Poobah Joined: February-19-2005 Location: NW IL Status: Offline Points: 4527 |
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Me LIKEY!!!!! BUT, we need more info on the engine!!!! . |
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63 Skier
Grand Poobah Joined: October-06-2006 Location: Concord, NH Status: Offline Points: 4269 |
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Rob, you've been around here a while. I think anyone who hangs around realizes how much valuable info is available to all of us. I'm fine with a few pointed comments because I always know those same people will take the time to help out in any way they are asked. And to be honest I really think there is less drama here than pretty much any site I visit. Jan, very impressive work! |
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'63 American Skier - '98 Sport Nautique
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Jan, Have you ever had any problems with coatings adhering to zinc die castings? How do you prep? Yes, your windshield is original. |
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Nautilus
Senior Member Joined: June-25-2013 Location: West Union, SC Status: Offline Points: 131 |
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Yes, the windshield is glass and the brackets are original to the windshield. I have no idea if the windshield is original to the boat but it does fit like a glove and there were no extra holes in the topsides to make me believe there was once a different windshield mounted. The brackets are pot metal and they were painted Eastwood aluminum rather than having them re-plated.
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Striving for mediocrity !
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dochockey
Gold Member Joined: September-16-2009 Location: Colorado Status: Offline Points: 638 |
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Hi Jan
On the Barracuda is that a glass windshield ? and the windshield corner brackets are those original to that boat ? Kirk |
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1989 Teal Ski Nautique
1967 Mustang Harris Float Sunfish |
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uk1979
Platinum Member Joined: June-13-2007 Location: United Kingdom Status: Offline Points: 1422 |
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Good to see your sticking around....welcome
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Lets have a go
56 Starflite 77 SN 78 SN 80 BFN |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Jan,
Thanks for filling us in. I've never seen an American-LaFrance in a marine application. Was it originally in a fire truck and you're converting it? What's your plan for a trans? The Sheperd's being a heavy and very stout built hull, it sure will be able to handle that engine. |
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Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Thanks Joe haven't quite got it yet but can see with practice that it will work. My son always tells me I should take a class
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