[C320-list] Maint list

[millers1 at aol.com]

Interesting conversation.  I concur that one can safely get  several years of use out of an 
impeller.  I suspect it would be better to get used frequently and not sit in a compressed mode,
through a winter lay-up.  I find it easy enough to pull in the Fall (inspect) and re-install in the spring.
I note that several years ago, after installing a new Yanmar impeller, the engine started to over heat under higher
RPM's (above 2200). Discovered the bronze bushing was debonded from the impeller element.
Turns out Yanmar had that problem through a range of impeller sizes.
I now (new or used) put a twist test on the bushing to make sure the bond to impeller is sound, before
installation.


Art,  #680,  Conn.







-----Original Message-----
From: Graeme Clark <cg at skyflyer.co.uk>
To: Catalina list <C320-List at Catalina320.com>
Sent: Wed, Jan 18, 2017 10:06 am
Subject: Re: [C320-list] Maint list

" Replacing the raw water impeller every year is a waste, The engine
  manual recommends every 300 hours and I do it every 150hr , which works
  out to every 3 years or so. “

Thread here about impeller failures and how often to replace:-

http://www.ybw.com/forums/showthread.php?366454-How-often-should-you-replace-the-raw-water-impeller <http://www.ybw.com/forums/showthread.php?366454-How-often-should-you-replace-the-raw-water-impeller>

personally for the small cost, ($20?) I’d rather have peace of mind! But we are all different which is what makes the world an interesting place!

Graeme


> On 18 Jan 2017, at 14:38, sail-ability sail-ability <sail-ability at sympatico.ca> wrote:
> 
>   Replacing the raw water impeller every year is a waste, The engine
>   manual recommends every 300 hours and I do it every 150hr , which works
>   out to every 3 years or so. Unless you get into a muddy, sandy mess (if
>   you do check the raw water strainer for gunk) if there is a mess in
>  there you should probably check the impeller. Whenever I'm in weedy
>   conditions I check the strainer frequently and have had to take it off
>   the get rid of the sucked up weeds.
> 
>   Cheers
> 
>   JohnM
> 
>   1999#574
> 
>     ---------- Original Message ----------
>     From: Ted Harrison <tharrison at innovations-plus.com>
>     Date: January 18, 2017 at 9:22 AM
>     Scott, Would you post your list once it is completed so the rest of
> us can be proactive.
>     Great idea.
>     Ted Harrison
>> On Jan 18, 2017, at 5:47 AM, Scott Westwood
>     <scottwestwood at bellsouth.net> wrote:
>> 
>> Anybody have a regular/scheduled maint list they use? I have been
>     putting one together (and some downloaded) but wondering if I'm
>     missing anything so I can personalize the list.
>> I, fortunately, don't have to winterize but I have the starter
>     list of regular "scheduled" tasks but I'm looking more for things
>     like:
>> Impeller replacement- 2-3 yearsStuffing tube re-pack- every 5
>     years?
>> 
>> I have a list "started" but what else is out there for a '98 320?
>> 
>> Thanks,
>> Scott Westwood scottwestwood at bellsouth.net H (919)-362-8538 C
>     (919)-618-7185

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