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Old 08-13-2017, 09:21 PM   #1
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Default New prop ?

Hello to all , I am new to this forum and a new boat owner, I have a 2001 1900 sr 5 liter , I need to replace my prop ( bent blade) I have no clue which one to get , pitch , 3 or 4 blade etc , I would like to speed up the getting on plane, any thoughts? And what's the " smart tabs " I've read people talking about? Thanks
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Old 08-13-2017, 10:18 PM   #2
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Welcome aboard

What size is the current prop, number of blades and material?

Adding blades and or going from aluminum to stainless will improve holeshot but decrease top speed.

You can try Quicksilvers on line prop calculator to see what it recommends.

Smart tabs are like trim tabs but cannot be actively adjusted but instead are mounted on spring loaded actuators.
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Old 08-17-2017, 01:03 AM   #3
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I won't know the size until I get back to the lake this weekend but I know it's aluminum and 3 blades thanks ,
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Old 08-17-2017, 05:43 AM   #4
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I have an aluminum 4 blade 21p on my sr1900 4.3... its drive is a 1:81 to 1... yours should be a 1:61... and mine gets up and goes loaded down with 6 people and a big ice chest... you having more torque of the v8 and the drive ratio you have I would think a 21p 4 blade aluminum would be good
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Old 08-17-2017, 02:27 PM   #5
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https://www.mercurymarine.com/en/us/...tor/#/step-one
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Old 08-18-2017, 10:29 PM   #6
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Thanks , I ordered one and am installing it tomorrow, I'll let you know how it works , I also just noticed that my trim and tilt reservoir is empty , I have no clue why , I don't see any fluid around , I just bought the boat so I don't know if it was empty when I got it ,, the trim and tilt works ,what kind of fluid should I use to refill it ? ATF, brake / power steering fluid?
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Old 08-21-2017, 03:31 PM   #7
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The seals on the actuators are gone. You don't see it because each time you use them it passes through the seals into the water the boat is floating in. The actuators can be rebuilt or replaced. lines and pump needed to be flushed and bled.
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