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78’ SN Prop Questions |
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Nautique Mike 
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Joined: June-20-2006 Location: United States Status: Offline Points: 147 |
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 Topic: 78’ SN Prop QuestionsPosted: July-02-2006 at 3:54pm |
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I have a 19' 78' SN 351w Commander/ Velvet Drive/ 1" shaft. It needs a new prop and I am considering replacing the (original?) 1279 Federal NT-BKAL CUP 13RH13 #HH49012 ( 3 blade) prop with the Acme #540 or another you guys might suggest.
I saw Keith's article and wondered if anyone might know how much clearance is enough for the 540 to fit without having it recut etc.? I have 5/8" between the blade and the hull now. Also I think I need new bushings and wondered how they get replaced. Any special tools or other reccomendations or tricks? Many Thnks, NM |
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Nautique Mike
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stang72
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Joined: July-31-2004 Location: United States Status: Offline Points: 1608 |
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Posted: July-02-2006 at 9:29pm |
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Mike...I just got a 540 (for a 72 SN), but have not run it yet...still waiting for my seats to get finished
Anyway...it is 13 inch diameter same as the old one...so fit is not a prob. Let you know how it performs. 5/8's??? that is really close...I have at least an inch. |
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trikeaholic
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Joined: August-10-2005 Location: United States Status: Offline Points: 163 |
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Posted: July-03-2006 at 8:27am |
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I like the 540, huge difference, direct bolt on. Bushings? Dunno, never changed them. When I find another $300, I would like to try out an OJ 3 blade legend also.
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GottaSki
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Joined: April-21-2005 Location: NE CT Status: Offline Points: 3365 |
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Posted: July-03-2006 at 9:02am |
maybe its NI-BRAL like most others. Nickle, Brass, Aluminum. |
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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Nautique2001
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Joined: June-14-2004 Location: Massachusetts Status: Offline Points: 2832 |
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Posted: July-03-2006 at 4:41pm |
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My new 4 blade OJ prop is outstanding. Amazing low and mid-range acceleration. I find that my boat doesn't vibrate as much. The wake is smoother at 30 MPH. I'm using in on my '86. Big difference!
Ken |
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Nautique Mike wrote: