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Prop singing

Engines, Electric, Plumbing, etc.

Moderator: Jeremyvmd

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gspier
Gold Member
Gold Member
Posts: 14
Joined: Thu Nov 18, 2010 5:17 pm
Home Port: Portsmouth, RI
Location: Foxboro, MA

Prop singing

Post by gspier »

I have a NSC 40 with 27" props and at low RPM 800-1200, seem to have a harmonic wine from both engines, "prop singing". At 1300 RPM´s the sound goes away. I have heard that having the props tuned, specific to eliminate "singing" should eliminate the sound?? I have had the boat 4 years not an issue for me, prospective buyer has issue. Had a ZF dealer sea trial and found no issues with the transmissions. Help!!!
NSC 40 Kot'ij
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jms02050
Gold Member
Gold Member
Posts: 175
Joined: Mon Jul 21, 2008 4:24 pm

Re: Prop singing

Post by jms02050 »

Had the same issue on my 28. Pulled the prop and had it re-conditioned, including putting a anti-singing edge on the blades. No more singing.
Jim S.
2003 28 TE - Full Circle
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jleonard
Gold Member
Gold Member
Posts: 2115
Joined: Fri Sep 22, 2006 7:35 am
Home Port: Mystic, CT
Location: New Port Richey, FL

Re: Prop singing

Post by jleonard »

gspier are you taking requests?
Sorry I couldn't resist :mrgreen:
Formerly
1983 40 Albin trunk cabin
Attitude Adjustment
Mystic, CT
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