[C320-list] 1995 C320 Aqua Lift Muffler & Elbow

[Jon Vez]

Ken,

You are right on in terms of running the engine correctly--however keeping
the engine properly loaded should take care of carbon build up, but not
necessarily corrosion. The combination of raw water (especially salt) and
exhaust is a harsh cocktail for metal. As far as the impeller, I check mine
every season and replace it every other--for me that's the equivalent of
about 100 hours. It's one of those preventative items discussed in earlier
posts. I'd much rather install a $20 impeller at the dock than underway,
especially where it is located on the Yanmars :(

Regards,

Jon Vez
Solstice #582

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Jane & Ken
Sent: Wednesday, December 02, 2009 9:03 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] 1995 C320 Aqua Lift Muffler & Elbow

The question is (as always has been) how do you use your engine???  Do you
start it and only run it a few minutes to get you to the 'sailing'
location-----or do you start and run until the engine is hot and under load
for 15-30 minutes.  While we do not use our engine much, we run it until it
is hot and under load----after 15 years, we have not experienced any
problems except the impeller on the water pump deep sixing with only 190
hours.
   The engines are designed to be run 'hard' and put to sleep hot--no pun
intended.
Ken, O'BUOY #219

--- On Wed, 12/2/09, amshd2 at aol.com <amshd2 at aol.com> wrote:


From: amshd2 at aol.com <amshd2 at aol.com>
Subject: Re: [C320-list] 1995 C320 Aqua Lift Muffler & Elbow
To: C320-List at Catalina320.com
Date: Wednesday, December 2, 2009, 5:02 PM



Rollie 

The exhaust elbow on my 94 Perkins is bolted to the exhaust manifold.   If
you look at the rear of the heat exchanger you will see a rubber fitting
just like the one in the front. . It has a 3/4 inch elbow that comes off it
and clamps to the exhaust elbow.

I had to change my exhaust elbow out about 4 years ago.  Eng only had about
680 hours.  Elbow rusted through and was leaking water.  When I removed it I
found carbon build up and alot of rust build up as well.

Tony 


-----Original Message-----
From: argates2nd at comcast.net
To: C320-List at Catalina320.com
Sent: Wed, Dec 2, 2009 5:47 pm
Subject: [C320-list] 1995 C320 Aqua Lift Muffler & Elbow



ur 1995 model #182 has only 3 screws holding down the aqua lift muffler? The

ft port corner has no hole and no screw. Is that normal? 
Should I try to add a screw to that corner by drilling a hole and self
threading 
ith the screw? 
I may have some leaking from that corner, although the other 3 screws were
not 
ery tight and I tightened them today but did not run the engine afterwards. 

ur Perkins does not seem to have an exhaust elbow like those described in 
ecent e-mails? The closest thing to it is a 9 inch pipe with a 3" bulb in
the 
enter where a 60 degree downward curve exists coming off the aft end of the 
ngine, labeled "exhaust outlet" in the Perkins manual, which clamps to the 
einforced hose before the muffler. 
Is that the elbow that should be removed from the back of the engine and
checked 
or carbon build up & deterioration? 
Our Perkins engine has 570 hours. 
Thanks, Rollie Punta Gorda, FL