[C320-list] Water Pump Leak, Fuel Leak Questions

[Stephane Rousseau _/)]

Hi everyone,

I have the same problem (3GM30F, Hull 544). Jon could you tell us what and
where to order the rebuild kit because here in Canada, for a new water pump
it's around 700$.

Thank you,


Steph _/)
Wedidit 2 (Hull 544)

2011/1/17 Jon Vez <jonvez at comcast.net>

> Dennis,
>
> I had a water pump leak a couple of seasons ago. I replaced the bushing and
> this solved the problem. I have a Johnson water pump (F4 I believe). You can
> check yours by looking on the plate that covers the impeller. I have photos
> of the plate and the bushings on the 320 web site. The job is very simple
> and takes about 15 minutes. I purchased the bushings in a 'rebuild kit' that
> contained 2 bushings, a couple of impellers and O-Rings--I think I paid
> about $35 for it. 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 Dennis Harris
> Sent: Monday, January 17, 2011 10:19 AM
> To: C320-List at Catalina320.com
> Subject: [C320-list] Water Pump Leak, Fuel Leak Questions
>
> Water Pump Leak,
>
> Yesterday I decided to run the engine a bit to charge the batteries.  After
> running about thirty minutes, I went below to close the thruhull and saw
> water coming from under the front engine cover.  Source is the cooling water
> pump.  Hoses are tight.  I couldn’t tell exactly where it is coming from,
> however.  We have had a long spell of cold weather (in/for eastern NC) and I
> keep a heater in the cabin that comes on at 38 degrees.  We occasionally
> loose power and the power company did a 4 hour shutdown last week, so I’m
> not sure whether the pump froze.  The leak is relatively slow, so I suspect
> that shaft seal at front or the gasket at the back of the pump has failed.
>  It is my understanding that several pumps may have been used on the engines
> (3GM30F, Hull 694).  How do I determine which pump I have?  Have others had
> similar failure and what did you do to fix it (new pump, complete rebuild
> kit, or just gaskets and impeller)?
>
> Fuel Oil Leak,
>
> At the same time that I was checking the water leak, I noticed that the pan
> under the engine had some fuel oil in it.  Again, I haven’t been able to
> spot the exact source, but it is coming from around the engine fuel filter.
>  The filter seems intact but the lines above it are wet with fuel.  Have
> others had a similar problem and where is likely source and what is the
> recommended repair?
>
> On both of these, I was limited in the time that I could spend
> investigating the problem sources and will go back to boat at first
> opportunity to try to zero in a bit better, but I would be interested in
> your thoughts to aid in the process.
>
> Thanks,
>
> Dennis Harris C320 #694
>
>