[C320-list] Winterizing Engine

[Robert Seastream]

I don't understand.  We have a 2002, with the Yanmar 3GM30F engine.   
The 'water pump' is nothing more than a rubber impeller housed within  
a belt driven mechanism powered by the engine.  Jeff, when you state  
that you 'replaced the pump', are you saying you replaced the housing  
that contains the rubber impeller?

Bob

On Sep 28, 2010, at 9:19 AM, Jeff Hare wrote:

> One more datapoint here.
>
> We have a 2001.  We found that over time we had a harder and harder  
> time getting the raw water pump to prime whenever we cleaned the  
> strainer even with a new impeller.  It got bad enough that I often  
> had to take the hose off the impeller to ensure no air in the feed  
> line to the pump.
>
> This problem got worse each year.  This past year we replaced the  
> pump.  It primes instantly now from a dry hose and pushes noticably  
> more water.
>
> Maybe this the real problem.
>
> -Jeff
> -----Original Message-----
> From: "Jon Vez" <jonvez at comcast.net>
> Sender: c320-list-bounces at lists.catalina320.com
> Date: Tue, 28 Sep 2010 08:10:42
> To: <C320-List at Catalina320.com>
> Reply-To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Winterizing Engine
>
> Joe,
>
> Sounds like you developed an air pocket in your system.
>
> Take a bucket and fill it half way with water and place the raw  
> water hose
> in the bucket. Have a water hose ready and start the engine. Once  
> the water
> starts drawing, use the water hose to maintain water in the bucket.  
> Once
> you've regained proper suction, stop the engine. Fill the bucket  
> with your
> antifreeze and try again. Hope this helps...
>
> 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 Joseph
> Aberdale
> Sent: Monday, September 27, 2010 8:20 PM
> To: C320-List at Catalina320.com
> Subject: [C320-list] Winterizing Engine
>
> Hello All,
>
> I am a new owner of a 2002 model, have hauled it out and want to
> learn how to winterize my boat and engine. Your generous assistance
> allowed me to successfully winterize the boat.  I changed the oil and
> filter in my engine and today attempted to run anti freeze through
> the cooling system.
>
> I drained the water from the aqua muffler and emptied the water from
> the intake strainer bowl. The water intake hose was disconnected from
> the seacock and placed in a pail of antifreeze.  When the engine was
> started, it failed to suck up the anti freeze.  I primed the hose by
> filling it with anti freeze and it still wouldn't suck up the
> antifreeze.  I opened the water pump to check the impeller and it
> looked OK. (What does a bad impeller look like?)  I did notice that
> the water pump had no gasket.  Is it supposed to? How can I get the
> cooling intake hose to suck in the anti freeze?
>
> Thank you for your help.
>
> Joe
> #908
>