[C320-list] Exhaust hose

[Paul Rickman]

Scott,
Thanks. You are correct. It is the hose that connects the coolant pump to the heat exchanger.
It does sit  "above the main shaft pulley" and to the left of the alternator. I went to the boat
today and confirmed that. The reason I was asking is that I have exhaust stains on my front
engine cover and was trying to figure out where the exhaust leak is/was. A couple weeks ago
I pulled the exhaust hoses, replaced one and repaired another. My mission today was to replace
that hose if it was for exhaust. Once I figured out it was for water I took a time out. Started the
engine, looked/listened for leaks and couldn't find one. Couldn't smell any either. So, for now
I think I am good to go.
 
Paul
Affinity 657 
Bay Bridge Marina
Kent Island, Md


----- Original Message ----
From: Scott Thompson <sthompson at toad.net>
To: c320-list at lists.catalina320.com
Sent: Monday, July 7, 2008 5:23:08 PM
Subject: Re: [C320-list] Exhaust hose

I have the Yanmar parts catalog for this engine at home and should be able
to look it up later today.  However I'm confused by your description.  My
initial reaction is that this must be the hose on the front of the engine
that connects the coolant pump to the heat exchanger (which sits on top of
and could be confused with the exhaust manifold).  But then I realized you
said "above the flywheel."  The flywheel is not visible externally, and is
at the aft end of the engine.  Did you mean "above the main shaft pulley?"
Can you see the hose in question in this picture:

http://www.catalina320.com/gallery/album94/DCP_2752

The coolant pump is just behind, and driven by, the topmost pulley in this
picture, using the same belt that drives the alternator.

Scott Thompson
Surprise, 653

> Sorry, I should have also said this is a Yanmar 3GM30F engine.
>
>
>
> ----- Original Message ----
> From: Paul Rickman <ilove2sail at verizon.net>
> To: C320-List at Catalina320.com
> Sent: Sunday, July 6, 2008 9:47:54 PM
> Subject: [C320-list] Exhaust hose
>
> On the front of the engine, above the fly wheel, there is a short but
> curved hose. I believe this is an exhaust
> hose leading up from ??? to the front of the exhaust manifold. Does anyone
> know what this hose is called, or
> perhaps have a part number.
> Thanks,
> Paul
> Affinity 657
> Bay Bridge Marina
>