[C320-list] Yanmar exhaust architecture

[millers1 at aol.com]

Danny,  Thanks for providing a comprhensive list for the job.
            When you removed the Riser Exhaust part, what was it's condition??
            The Elbow is always a mess, but I find the Riser to be in pretty 
good condition usally.
Art   #680
 
 
-----Original Message-----
From: danny jensen <danny at jensenshouse.com>
To: C320-List <C320-List at Catalina320.com>
Sent: Sat, Oct 18, 2014 6:55 pm
Subject: Re: [C320-list] Yanmar exhaust architecture


I have a yanmar 3GM30F-YEU. HULL 972. ALSO NOTE THE HOSE I USED WAS SOMEWHAT 
FLEXIBLE. BAYSHORE MARINE IS AN EXCELLENT SOURCE FOR YANMAR PARTS.

Parts:
bayshore marine:
128370-13201 gasket     $4.92
124070-13520 U mixing elbow    $169.33
128370-13610 riser exhaust     $130.39
104214-13580 joint =09=09$28.79
Note:
27233-250000 plug            comes with 124070-13610
124070-13300 elbow 3/8    comes with 124070-13610

Parts from Catalina Yachts (Ken at catalinayachts.com)
1 Muffler $374 plus Shipping

Parts from Catalina direct:
High Temp Anti-Seize Compound (#Z2858): 1 Item Total: $15.95 Exhaust Hump Hose 
1-5/8"I.D X 6" (#Z2152): 1 Item Total: $31.49

Tools Harbor Freight
8" Radiator Hose Pick $3.99
Carbon/Gasket Scraper $2.99
High Temp Gasket seating compound

MMI Marine
TRI252-2004
TRIDENT CORRUGATED FLEX SAE J2006 MARINE WET EXHAUST HOSE (HARD WALL WITH W=
IRE)  - 2 Feet  $15.00
BUA70HSS36C
BUCK HOSE CLAMPS S/S FROM 1 13/16" TO 2 3/4"=094 $8.00

DANNY

-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of 
danny jensen
Sent: Friday, October 17, 2014 8:55 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Yanmar exhaust architecture

New designs could be dangerous because you don't want back flow pressure from 
the muffler to the engine. Search on internet for bad stories of serious engine 
damage. Use a hump hose and consider mounting muffler on thin rubber matting. 
Replace the muffler every 8-10 years and you should be finished with your 
muffler woes.
Danny
#972

Sent from my iPhone

> On Oct 17, 2014, at 6:14 AM, "colloua5 at aol.com" <colloua5 at aol.com> wrote:
> 
> 
> 
> 
> These part numbers are they from yamar direct ?
> 
> 
> Thanks for all the info
> 
> 
> on another note .....my muffler box failed, I am going to clean it, re-epoxy 
the joint where the two meet and then fiberglass mesh the two together on the 
outside  completing the sealed unit. From what I read the new units seem as 
poorly designed as the original.
> 
> 
> I am contemplating having one made of brass with  soldered joints over the 
winter, pressure test it and install, the cost should be equivalent to the 
fiberglass replacement unit
> 
> 
> 
> 
> 
> 
> -----Original Message-----
> From: tharrison <tharrison at innovations-plus.com>
> To: C320-List <C320-List at Catalina320.com>
> Sent: Thu, Oct 16, 2014 11:09 am
> Subject: Re: [C320-list] Yanmar exhaust architecture
> 
> 
> One item to note is hose size. Mine was 1 5/8. 
> 
> There is a reverse direction joint between the elbow and mixing elbow. Play 
with 
> this piece and the final orientation.
> 
> 124070-13520 mixing elbow
> 128370-13610 elbow
> 104214-13580 joint
> 
> Gasket, I do not have this part number. 
> 
> High temp gasket seal - red from NaPa 
> 
> Some anti seize compound for on the joint threads. 
> 
> That is all I can thing about.
> 
> Others please verify the part numbers. I fairly sure. 
> 
> Sent from my iPhone
> 
>> On Oct 16, 2014, at 6:53 AM, Graeme Clark <cg at skyflyer.co.uk> wrote:
>> 
>> Timothy
>> 
>> Thats exactly why I wanted a photo or diagram (or even part numbers) , so I
> can get an idea of how the thing is put together following what would appear 
to 
> be an early experiment on mine!
>> 
>> For example at what point of the exhast doe sthe water injection take place?
> Itr seems to me that the cooling water exits on the port sode of the engine 
and 
> the exhaust on the starboard side, so some form of connection needs to be made 

> between the two. The ‘standard’ Yanmar exhast injection elbow has the water 
> entering the exhaust just a few inches from the engine block, i.e., really 
> early; mine has the water enetering about 18 inches downstream, hence, 
> presumably the need to lag the prt beforehand which receives no cooling 
effect!
>> 
>> Regards
>> 
>> Graeme
>> 
>> 
>> 
>> Message: 7
>> Date: Tue, 14 Oct 2014 20:27:53 -0400
>> From: Timothy Osburn <tosburn1958 at gmail.com>
>> To: C320-List at catalina320.com
>> Subject: Re: [C320-list] Yanmar exhaust architecture
>> Message-ID:
>>   <CAJEc2k1MKDpjndsjfeZcPNCAAC3xWk0nXZoogQ=6dBmdvtE6ww at mail.gmail.com>
>> Content-Type: text/plain; charset=UTF-8
>> 
>> I just had mine replaced last month and the mechanic was able to use off
>> the shelf parts. I have the same engine.
>>> On Oct 14, 2014 5:37 PM, "Graeme Clark" <cg at skyflyer.co.uk> wrote:
>>> 
>>> I have just transitioned from one/third shared ownership of hull #303 with
>>> a Westerbeke to sole ownership of hull # 366 which (I have been told) is
>>> one of the very first to be fitted with a Yanmar 3GM30F engine.
>>> 
>>> The exhaust arrangement/architecture is very different from the Westerbeke
>>> and I wondered if this was now ?standard? in all Yanmar engined 320s or has
>>> it been superseded with something else?
>>> 
>>> The exhaust is on the starboard side of the engine, so there is a length
>>> of lagged exhaust pipe as per this photo
>>> 
>>> http://i59.tinypic.com/244tch3.jpg
>>> 
>>> which then connects  to a section on the port side where the water is
>>> injected. The entire assembly looks a bit ?home made?!
>>> 
>>> If I have to replace the exhaust ?elbow? (in reality not an elbow at all)
>>> where do I get this piece or is it custom made by a fabricator.
>>> 
>>> If anyone else with a 3GM30F has a photo or diagram of the exhaust
>>> arrangement I?d be most grateful
>>> 
>>> Many thanks
>>> 
>>> Graeme,
>>> Britain
> 
> 
> 
>