[C320-list] C320 Prop Question

[Warren Updike]

I seem to have gotten wrong what changes as you go from 2 to 3 blades.  My
recommendation to call Catalina stands.

-----Original Message-----
From: resloat [mailto:resloat at comcast.net] 
Sent: Monday, August 13, 2012 10:37 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] C320 Prop Question

Frank-I have hull 894 (2002) and the original prop was a 3 blade 15 X 9. 
The engine is a 3GM30F Yanmar with a KM2P transmission and 2.21 gear ratio
in forward.  This is pretty much standard for this hull date.  With this set
up the engine will max out on RPM with max boat speed.  Everything was
properly sized.

The current owner must not have gotten the correct pitch or the prop is
badly fouled.  What year/hull boat are you looking at and ehow many engine
hours?

Bob Sloat
S/V Savannah 894 (2002)
----- Original Message -----
From: "Frank Reid" <freid59 at verizon.net>
To: <C320-list at catalina320.com>
Sent: Monday, August 13, 2012 8:33 AM
Subject: [C320-list] C320 Prop Question


I'm in the process of buying a Catalina 320 and the current owner changed 
the prop from the 2 blade 13 inch (measured tip to tip) with a 3 blade 15 
inch.  During our sea trial while under high RPM the engine was expelling 
unused fuel out the exhaust.  If we place the transmission in neutral and 
rev'd it up there was no fuel expelling.  I suspect the prop is the wrong 
size.  It has the 30F engine.  Does anyone know for sure what size 3 blade 
prop is correct?