[C320-list] Knock, knock, who's there?

[sailorlew at aol.com]

Loose zinc?
 

 

 

-----Original Message-----
From: Elizabeth Schwartz <schwartz781 at optonline.net>
To: C320-List <C320-List at Catalina320.com>
Sent: Sun, May 10, 2015 5:35 pm
Subject: Re: [C320-list] Knock, knock, who's there?


Ahoy......Had the same sounds on mine during sea trial........found that 
the
exhaust hose in lazzerette
was not clamped down.....was thumping on hull
below.......reclamped, now 
much improved.....Joe...#245

On Sun, May 10,
2015 at 04:40 PM, B. Stumpp wrote:

> We went out for our first Spring sail
this afternoon.  Everything 
> worked
> great BUT with the engine running and
turning left I get a knocking 
> sound
> with what seems like every revolution
of the prop shaft.  It does not 
> make
> the noise when going straight,
turning right or in either direction in
> reverse.     If I speed up the engine
the noise  goes faster.  I stuck 
> my
> head in the engine compartment both
in front of and behind the 
> bulkhead,
> the sound is emanating farther back
towards the stern.  It's not  a 
> real
> loud knock but kind of like someone
lightly tapping on the deck with a
> hammer as a surveyor does when checking
for moisture.   Before we 
> launched
> the cutlass bearing and strut all
seemed fine.  Has anyone experienced 
> this
> before?
>
> Bruce
Stumpp
>
> Adventure, #647
> Frog Mortar Creek, Maryland
>
>