This discussion made me think about the situation on my boat with a Universal M4-30. I looked at the engine diagram and parts list online and found no mention of a mixing elbow. Is this a Yanmar specific issue? If so, how does the Universal handle exhaust? Dave
On Nov 15, 2014, at 9:11 AM, Robert Abbott via CnC-List <cnc-list@cnc-list.com> wrote: > On 2014/11/13 8:23 AM, John and Maryann Read via CnC-List wrote: > > John > > Your mixing elbow is original ie 32 years old......I am assuming it has spent > its life in a 'salt water environment'. If so, there has to be some > corrosion taking place on the inside. > > A mixing elbow is not an expensive item and if you have taken yours off and > put it back on, then do yourself a favor and replace it before it fails at > the most inopportune time. > > In 2012, a fellow club member with a 1984 C&C 32 had his mixing elbow 'split' > at the top of elbow spewing salt water and gases into his engine compartment > while motoring up the coast. He made it back to the club O.K. but he then > lost several weeks in the sailing season getting someone to replace it for > him. > > I took his old mixing elbow and cut it open to examine it......while the > outside wall looked fine, the inside was in pretty rough shape. And the > problem wasn't carbon buildup but salt water corrosion. The following > season, I replaced mine......I deem it preventable maintenance and what will > eventually fail. > > Rob Abbott > AZURA > C&C 32 - 84 > Halifax, N.S. > > > > >> Our 34 has the original Yanmar 3GM which is working like a charm. How does >> one tell if the mixing elbow is due for replacement??. Ours still has the >> original mixing elbow which we removed and inspected about 12 years ago. It >> was fine. Lots of water comes out the exhaust and engine performance is >> fine. Engine is used mostly for motoring in and out of the mooring field >> with periodic runs of an hour or so to get to the starting line. I was >> thinking of removing the hose and use a mirror and spot light to look >> inside?? >> >> >> John and Maryann >> Legacy III >> 1982 C&C 34 >> Noank, CT >> >> >> --- >> This email is free from viruses and malware because avast! Antivirus >> protection is active. >> http://www.avast.com >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go bottom of >> page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >> >> >> > > > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of page > at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > Aries 1990 C&C 34+ New London, CT
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