Prop help!

M

mjpvfd

Cadet
Joined
Jun 13, 2012
Messages
7
Hi, first off, I'm relatively new to the boating community. I need some advise about my prop on my Baretta supersport200. It is a 20 foot cuddy cabin with a aq131c volvo penta engine in it. I'm not exactly sure which drive it has though(the covers missing). It has a 3 blade aluminum prop. I think the prop is a 14 diameter and a 19 pitch(dont quote me)...
Im concerned about the divoting near the center of the prop. Can anyone explain to me what is happening?

Thank you,

Michael
 

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S

steelespike

Supreme Mariner
Joined
Apr 26, 2002
Messages
19,069
Re: Prop help!

That looks like the result of cavitation. There is a low pressure area on the back side of the prop the water actually boils in the low pressure causing the erosion.Usually not a problem and can be an indication the prop s working really well.
 
M

mjpvfd

Cadet
Joined
Jun 13, 2012
Messages
7
Re: Prop help!

It seems like the area on each fin seems to be getting worse every time i take it out...Anything to do to prevent it? It just scares me. Lol.
 
S

steelespike

Supreme Mariner
Joined
Apr 26, 2002
Messages
19,069
Re: Prop help!

I guess you could slap a little paint on it on a regular basis.
Maybe an epoxy type.
 
M

mjpvfd

Cadet
Joined
Jun 13, 2012
Messages
7
Re: Prop help!

Im looking for a used prop that is in decent shape which is almost or exactly the same size.... right handed, 14diameter, 19pitch, 3blade,17spline, aluminum prop that fits on the volvo penta 290 sp outdrive (long hub) please call or text as soon as possible 814-688-2102. Thank you, Michael
 
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