[C320-list] Noise from shaft packing??

[Robert E. Sloat]

Larry & Melissa-I have had GFO packing in my 2002 320 for almost 5 years 
with the OEM propeller and the last 2 years with an Autoprop.  No noise from 
the shaft when sailing with either propeller.  The Autoprop recommends you 
put  in gear when sailing for it to feather, but even when you let the 
Autoprop free wheel there no noise.


Bob Sloat
Savannah 894
----- Original Message ----- 
From: "Larry & Melissa" <theleibmans at verizon.net>
To: "Catalina320.com" <C320-List at Catalina320.com>
Sent: Saturday, May 16, 2009 6:43 PM
Subject: [C320-list] Noise from shaft packing??


Has anyone here who is using the GFO shaft packing noticed a high-frequency 
noise at certain engine rpm (1500-2000)? I just noticed this noise this 
season and am wondering if the switch to the GFO could be the culprit. The 
new packing and the installation of a new strut bearing were the only 
drive-train changes made over the winter. I don't see how it could be the 
strut bearing, though I suppose anything is possible. The noise also occurs 
when sailing with the prop free-wheeling when I hit around 6-6.5 kt (which I 
assume has the prop spinning at the equivalent of an engine speed of 
1500-2000 rpm). It is difficult to pinpoint the source when down below. It 
almost is louder in the cockpit. It could also be transmission related 
although the transmission seems fine in all other respects. Any thoughts or 
experiences with others using the GFO are welcome.

Thanks,

Larry