[C320-list] Shaft Misalighment

[Jeff Hare]

It would be helpful to take a shot from in front of where the shaft exits
and facing aft.  Directly in line with the shaft/rudder so that we can see
what you think is out of alignment.

It could be that the engine mounts are not adjusted correctly and the engine
is offset slightly to the starboard and not properly angled/aligned.

It may be that the shaft has a *very* slight bow to it.  Turn it slowly and
check where the shaft exits the hull and see if it is in line or not.  If it
has a slight bow (or the couplings aren't perfectly aligned), the shaft can
whip a bit when the prop is under load.

There is a REALLY GOOD prop shaft alignment procedure on the C320 website.
I did it once or twice the "recommended" way and was never very satisfied
and it took a long time.  I did it using the procedure from our website and
it didn't take nearly as long and was much closer than it had ever been.

My $0.02
-Jeff

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of danny jensen
Sent: Tuesday, March 19, 2013 6:53 PM
To: C320-List at Catalina320.com
Subject: [C320-list] Shaft Misalighment

 Dear Group,
I just hauled my boat for bottom paint and it looks like I have a shaft
alignment issue.
Here are links to pics
http://www.mammothcondos.com/c320-shaft01m.JPG


http://www.mammothcondos.com/c320-shaft02m.JPG


Facts
1.	The boat always had a bit of vibration between about 1500 and
2200 rpm
2.	I did wrap a line around the prop last summer but did not notice
any problems - vibration etc.
3.	The mechanic did to alignment etc. 12 months ago.
4.	Boat was surveyed 2 years ago before purchase
5.	The strut looks like it is offset a bit to port (not 90
degrees). Not aligned with rudder? 
6.	No visible wear on cutlass
7.	Evidence of shaft rubbing on bottom of log tube as it exits the
boat. See pictures shaft is buffed inside the log tube
8.	Hull 972 2004 Catalina 320

Questions:
1.	Looks like I need to replace strut?
2.	What process should I follow to troubleshoot?
3.	If strut is bent what other parts do your recommend to replace
while I'm at it

Danny
#972