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07-01-2015, 10:46 AM
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#1
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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96 3200SCR drive rotation ?
So I am repowering this 96 3200SCR, I recently purchased (stole) and this thought arises.
The engines/drives are 7.4L Bravo 3's. Is the port drive supposed to be counter rotation from the starboard drive? (Kinda weird with counter-rotating props on each drive)
The prop sets are identical on each drive.
I've never seen this boat run so I have not a clue.
What's the norm for this?
Happy fourth!
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07-01-2015, 12:42 PM
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#2
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Admiral
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,632
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With B3's they are set up the same rotation as each having dual props that counter rotate cancel themselfs out.
Post some pictures of the project.
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__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2
Mike
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07-03-2015, 01:06 PM
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#3
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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I guess I'll just keep this thread going as I repower and do some maintenance.
I am about to remove the gimbal housings, replace one (or both) of the steering pins, bushings, etc., sand off some corrosion, then repaint.
Another quick question, and observation.
I've rebuilt/restored several twins before, but have never seen a power steering pump on both engines. The port engines pump is simply plumbed to itself, so it's not really there for any reason. Did the previous owner simply not have a smaller v-belt, so he could do without it, or is there more to it?
Happy 4th of July weekend!
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07-03-2015, 03:10 PM
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#4
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Admiral
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,632
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This is a typical installation, boat builders use the same engine in both locations. Since only one pump is required they loop the PS line back to the pump.
Stern drive engines are just made this way.
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2
Mike
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07-03-2015, 04:12 PM
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#5
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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Doesn't seem to make sense, having the engine turn something that doesn't serve any purpose.
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07-03-2015, 04:40 PM
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#6
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Admiral
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,632
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Economics, only have to stock one engine design. This is cheaper because it's the same engine for single and twin setups .
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2
Mike
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07-04-2015, 11:38 AM
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#7
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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Lets take an opinion poll.
Since I have both engines out, getting new blocks, complete rebuilds, going to (full) close cool, would you go ahead and add thru hull water intakes for each engine?
Have the parts, easy to do now, will provide A LOT more water for cooling.
In the bilge already is:
AC fitting, Generator fitting, toilet (I think) fitting.
Starting to run out of boat for all these thru hull fittings!
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07-04-2015, 05:00 PM
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#8
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Admiral
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,632
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If you have the thru hulls and strainers as well as room to install them that will have easy access and clean water flow.
The bravo water tube can clog in the transom assembly due to the insert they use to hold the hose in place.
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2
Mike
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07-04-2015, 06:50 PM
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#9
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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07-04-2015, 09:00 PM
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#10
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Admiral
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,632
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Neither have I.
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2
Mike
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07-04-2015, 09:11 PM
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#11
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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The port drive is the same. Looks like it's supposed to be there.
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07-04-2015, 10:43 PM
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#12
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Admiral
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,632
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Can you tell what material they are made of?
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2
Mike
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07-04-2015, 11:47 PM
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#13
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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Aluminum.
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07-05-2015, 12:00 AM
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#14
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Admiral
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,632
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I looked on some parts listings but could not find them, yet they look OEM.
Guess I cannot hurt to leave them but I would paint them.
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2
Mike
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07-05-2015, 10:23 AM
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#15
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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Found it! They are part of the Trim Down Limit.
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07-05-2015, 01:09 PM
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#16
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Admiral
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,632
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So the drive hits them and they prevent it from trimming down any further?
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2
Mike
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07-05-2015, 02:10 PM
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#17
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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Hey Look! Ya learn something new everyday!
Special thanks to (A Chris on Iboats Forum)
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07-08-2015, 10:03 PM
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#18
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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Let Do this!
__________________
Jim Crews
2002 Sea Ray 340 DA
1992 Maxum 2300SR
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07-08-2015, 10:54 PM
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#19
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Admiral
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,632
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Post pictures away, we love projects.
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2
Mike
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07-11-2015, 08:21 PM
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#20
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Lt. Commander
Join Date: Apr 2006
Posts: 190
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__________________
__________________
Jim Crews
2002 Sea Ray 340 DA
1992 Maxum 2300SR
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Linear Mode
