I/O vs. Jackshaft

Sea J · 03-31-2007, 07:08 PM

I am looking at the Carolina Classic boats (used) and I have found a couple contenders.....question is...1 has "Jackshaft" and the other is listed as "I/O". What are the differences in these 2 and a few pro/cons of 1 vs. the other.

FinRazr · 03-31-2007, 10:02 PM

On that boat it's the same the engine is located midship and a shaft runs to the transom and engages the outdrive.It keeps your transom clear and puts the center of gravity lower and more in the center of the hull.

reel fishy · 03-31-2007, 11:25 PM

And a lower center of gravity is a good thing.

Graceland · 03-31-2007, 11:54 PM

Your transom isn't totally clear, you still have an out drive hanging back there but it sure beats a big old outboard.

Which power plant/outdrive combo are you looking at? I have a Yanmar 315 with a Mercruiser Bravo IIIX outdrive. Let me know if I can be of any help.

costaricasportfishing · 04-01-2007, 12:42 AM

They are probably both I/O Jackshafts

FinRazr · 04-01-2007, 04:28 PM

Quote:

Originally Posted by Graceland

Your transom isn't totally clear, you still have an out drive hanging back there but it sure beats a big old outboard.

Which power plant/outdrive combo are you looking at? I have a Yanmar 315 with a Mercruiser Bravo IIIX outdrive. Let me know if I can be of any help.

I was reffering to the inside of the boat no doghouse against the transom.

Sea J · 04-02-2007, 01:50 PM

Thanks for the info......The one I was looking at has gas engines.....8.1 Crusaders....not sure of the shaft model. Would love to go diesal but $$$ won't allow.

Reel Happy · 04-02-2007, 02:40 PM

Sea J,

both of those are I/O. the jackshaft is connecting the outdrives to the power. You can also check out www.carolinaclassicboatowners.com. There are alot of experienced classic owners on there that can answer most any question you have about them.

Getsome · 04-03-2007, 12:48 PM

I had a Carolina Classic with the jackshaft and as mentioned before the weight of the engine being forward improved the ride in rough seas and frees up the inside fishing area. The down faals include increased vibration (if the shaft is not tuned) and the driveshaft itself is a very dangerous area if left exposed while running. The CC25 is a tank of a boat and made for off shore, but rolls terrible in the short choppy stuff.

Mushy
27' Judge Chesapeake
"Getsome"

03-31-2007, 07:08 PM	#1
Sea J Guppy Breeder Join Date: Sep 2006 Posts: 34 Credits: 1,214.7	I/O vs. Jackshaft I am looking at the Carolina Classic boats (used) and I have found a couple contenders.....question is...1 has "Jackshaft" and the other is listed as "I/O". What are the differences in these 2 and a few pro/cons of 1 vs. the other.

03-31-2007, 10:02 PM	#2
FinRazr Crab mustard is good Join Date: Aug 2006 Posts: 845 Credits: 1,350.9	On that boat it's the same the engine is located midship and a shaft runs to the transom and engages the outdrive.It keeps your transom clear and puts the center of gravity lower and more in the center of the hull. __________________ DID YOU SAY YOU WANT SOME OF THIS ACTION!!

03-31-2007, 11:25 PM	#3
reel fishy Stop staring at my Avatar. Join Date: May 2006 Location: St. Petersburg, Florida and Beyond Posts: 420 Credits: 1,296.4 Boat: Yours or Mine? Home Port: Florida Best Catch: Fresh fish for dinner! Occupation: Pink Snapper Snatcher	And a lower center of gravity is a good thing. __________________ Capt. Adam M. For-Hire Cockpit or Bridge Man Backcountry to Bluewater

03-31-2007, 11:54 PM	#4
Graceland Crab mustard is good Join Date: Feb 2005 Location: Newport News, Va Posts: 701 Credits: 1,388.3 Occupation: US Navy	Your transom isn't totally clear, you still have an out drive hanging back there but it sure beats a big old outboard. Which power plant/outdrive combo are you looking at? I have a Yanmar 315 with a Mercruiser Bravo IIIX outdrive. Let me know if I can be of any help. __________________

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04-01-2007, 12:42 AM	#5
costaricasportfishing Sit down Shut up And fish Join Date: Sep 2006 Location: Jaco, Costa Rica,by way of Rodanthe NC Posts: 599 Credits: 1,806.7 Boat: Miss Behav'in Home Port: Los Suenos, Costa Rica Best Catch: Grand Slam, Blue(400+),Black(500+),4 Sails Occupation: Sportfishing Capt	They are probably both I/O Jackshafts

04-02-2007, 01:50 PM	#7
Sea J Guppy Breeder Join Date: Sep 2006 Posts: 34 Credits: 1,214.7	Thanks for the info......The one I was looking at has gas engines.....8.1 Crusaders....not sure of the shaft model. Would love to go diesal but $$$ won't allow.

04-02-2007, 02:40 PM	#8
Reel Happy Hide- My Wifes Logged On Join Date: Feb 2007 Location: Manteo, NC Posts: 137 Credits: 3,477.2	Sea J, both of those are I/O. the jackshaft is connecting the outdrives to the power. You can also check out www.carolinaclassicboatowners.com. There are alot of experienced classic owners on there that can answer most any question you have about them.

04-03-2007, 12:48 PM	#9
Getsome I just got squirted with ballyhoo poop Join Date: Dec 2006 Posts: 40 Credits: 1,217.3	I had a Carolina Classic with the jackshaft and as mentioned before the weight of the engine being forward improved the ride in rough seas and frees up the inside fishing area. The down faals include increased vibration (if the shaft is not tuned) and the driveshaft itself is a very dangerous area if left exposed while running. The CC25 is a tank of a boat and made for off shore, but rolls terrible in the short choppy stuff. Mushy 27' Judge Chesapeake "Getsome"