[C320-list] Muffler leaks and drainage
Jeff Hare
Catalina at thehares.com
Sun Jan 15 17:01:59 PST 2017
Hi Jim,
You don't need the hose hump. I installed the flexible corrugated exhaust hose, Trident/Shields 252 series I think. So much more flexible and nice smooth interior wall. Takes the vibration out. It's quite expensive, like $20/ft, but you don't need very much at all. Certainly much cheaper than repairing a muffler.
-Jeff Hare
#809
-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of jbrown5093 at yahoo.com
Sent: Sunday, January 15, 2017 8:10 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Muffler leaks and drainage
I think some have suggested using a hump hose in place of the standard one between the elbow and the muffler to reduce vibrations. Anyone done that?
Jim Brown
Sent from my iPad
> On Jan 14, 2017, at 11:28 PM, Ted Harrison <tharrison at innovations-plus.com> wrote:
>
> Greg, was the drain installed or do you have to do it yourself after?
>
> What was the cost, if appropriate to ask or send me the info
> tharrison at innovations-plus.com
>
> Tks
>
> Ted Harrison
>
>> On Jan 14, 2017, at 8:35 PM, Greg Flanagan <greg.flanagan at shaw.ca> wrote:
>>
>> Never. But only because my Yanmar has always started within a few seconds. You need the drain if you crank the engine for a number of minutes, or you will suck water into your engine-yes not good!
>>
>> Greg Flanagan
>> Hoop Dancer #1076
>> Sidney, BC
>>
>>> On Jan 14, 2017, at 5:29 PM, Dick Walker <dickwalker at att.net> wrote:
>>>
>>> Has anyone ever used The drain? Out first boat was a C-30 '86. Same design
>>>
>>> On that boat I replaced I replaced the muffler with one off the
>>> shelf from WM
>>>
>>> THE BIG DEAL is know how much you can crank the starter. Overfilling the tank would send water back up stream and would not be good
>>>
>>> Cheers
>>>
>>>
>>>
>>> Dick Walker
>>> 740 Olive Ave.
>>> Coronado ,CA 92118
>>> 619.435.8986
>>>
>>>
>>>
>>>> On Jan 14, 2017, at 16:28, Troy Dunn <troutwarrior at gmail.com> wrote:
>>>>
>>>> Warren et. al.-
>>>>
>>>> We just sent our muffler to CD in November. The cost of the
>>>> muffler and drain valve which is sold separately and which you have to tap your self is
>>>> almost $500 by the time you factor in shipping both ways. We should be
>>>> receiving the muffler in the next month or so I suspect.
>>>>
>>>> Troy
>>>> Hull #514
>>>>
>>>>> On Sat, Jan 14, 2017 at 3:58 PM Warren Updike <wupdike at hotmail.com> wrote:
>>>>>
>>>>> FYI a Chesapeake neighbor 320 #4 has replaced his Catalina muffler
>>>>> with a Vetus "Water Lock" muffler. I checked with him a few times
>>>>> over the years and he remains happy with it. There are other
>>>>> brands out there. Also, some available on Amazon and marine online stores.
>>>>>
>>>>> I don't know the cost of a Catalina muffler. The production units
>>>>> seem to run in the $400-700 range. I haven't really looked into it.
>>>>>
>>>>>
>>>>>
>>>>> Warren and Pattie Updike
>>>>>
>>>>> 1994 C320 "Warr de Mar" #62
>>>>>
>>>>> Middle River, Chesapeake Bay
>>>>>
>>>>>
>>>>>
>>>>> -----Original Message-----
>>>>>
>>>>> From: pat reynolds [mailto:lorasalum at yahoo.com]
>>>>>
>>>>> Sent: Friday, January 13, 2017 3:08 PM
>>>>>
>>>>> To: C320-List at Catalina320.com
>>>>>
>>>>> Subject: Re: [C320-list] Muffler leaks and drainage
>>>>>
>>>>>
>>>>>
>>>>> if you have a muffler or muffler hose leak you should be getting
>>>>> water in the bilge and you could actually see the leak when the engine is running.
>>>>> It seems unusual that the drain cock would be open and you not get
>>>>> water in the bilge, unless it was clogged. if you are not seeing water coming out
>>>>> of the muffler or hose your smell is coming from elsewhere as far as
>>>>> mufflers go if you got 20 years out of the muffler you are ahead
>>>>> of the game. If it does leak don't bother trying to fix it, I did
>>>>> this and it kept leaking. Get one from catalina but you have to
>>>>> either send the original back to them as they have several molds
>>>>> or have them send you photos of the ones they have made over the years.
>>>>>
>>>>>
>>>>>
>>>>> On Friday, January 13, 2017 1:49 PM, Graeme Clark
>>>>> <cg at skyflyer.co.uk>
>>>>> wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Last summer, after motoring any length of time, we would get a
>>>>> diesel fuel smell in the aft cabin and - i noticed also - more
>>>>> strongly under the galley sink.
>>>>>
>>>>> I know I don't have a fuel leak and I know that the exhaust system
>>>>> is good as far as the muffler.
>>>>>
>>>>>
>>>>>
>>>>> I therefore am assuming either a leak from the muffler or from the
>>>>> exhaust hose itself, which is I think the original fit from 20
>>>>> years ago and therefor probably perished!
>>>>>
>>>>>
>>>>>
>>>>> So I will be replacing the exhaust hose and have removed the
>>>>> muffler to inspect at home. There is no immediate obvious sign of
>>>>> a leak but it isn't under any pressure, of course. Any suggestions as how to best test it?
>>>>> Even if it isn't leaking I thought I might take the opportunity
>>>>> whilst out of the boat, to reinforce any weaker areas with glass
>>>>> mat and resin. But what ARE the weaker areas? I know others here
>>>>> have had problems with these mufflers on and off over the years.
>>>>>
>>>>>
>>>>>
>>>>> Finally, there is what i assume to be a T-shaped drain tap on the
>>>>> side of the muffler, but I was surprised to find it in the fully
>>>>> unscrewed position (in other words fully counter clockwise). has
>>>>> it vibrated open, is that the ‘leak' - or does this drain valve work in the reverse sense to ‘normal’?
>>>>>
>>>>>
>>>>>
>>>>> Thanks in advance for any guidance
>>>>>
>>>>>
>>>>>
>>>>> Graeme
>>>>>
>>>>> #366, 1996, Oskar, Falmouth UK
>>>>>
>>>>>
>>>>>
>>>>> ———————————————————
>>>>>
>>>>> I work irregular hours and often write emails late in the evening
>>>>> and at weekends; that doesn’t mean I expect you to do the same;
>>>>> reply when convenient!
>>>
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