I drilled out the buildup in the small right-angle fitting going into the elbow, which gave me another year. I was surprised it took a drill to clean it, but it wasn't going anywhere with a gentle touch. I replaced the mixing elbow the next year. Now I just figure it's something that needs replacing every 1000 hours and put it on the schedule.
Jim Watts Paradigm Shift C&C 35 Mk III Victoria, BC On 20 May 2014 18:10, Robert Abbott via CnC-List <[email protected]>wrote: > Dave: > > I am with Rich on this one......maybe time to replace the mixing elbow if > it is original.....two things not good happen to them over time....they > corridor from the inside out, especially in a salt water environment, and > they 'soot up' and/or carbon up inside.....I have seen cleaning them but it > is never as efficient as replacing them. > > Depending on access to your engine, specifically your exhaust manifold, > and your mechanical abilities, the job can be a DIY or maybe you might need > someone who has done it before to do it for you and/or assist you. > > I replaced mine last year with mentoring for someone who has replaced > them....glad I had the second set of hands and tips to make the job easier. > > Let us know which route you decide to go.....clean or replace....the tips > to remove and reattach the mixing apply, whether cleaning or replacing, > apply both ways. > > Rob Abbott > AZURA > C&C 32 - 84 > Halifax, N.S., > > > > > > > On 2014/05/20 9:26 PM, Rich Knowles via CnC-List wrote: > >> But.... If it's the original elbow, I suggest replacing it. It's not >> pretty when the side falls out of it due to corrosion and your boat slowly >> fills with exhaust gas and dirty water. >> >> Rich >> >> On May 20, 2014, at 21:12, "Dennis C. via CnC-List" < >>> [email protected]> wrote: >>> >>> Common issue with Yanmars. Soot builds up in the mix elbow. Pull the mix >>> elbow and clean it. Should be 4 nuts. >>> >>> Dennis C. >>> Touché 35-1 #83 >>> Mandeville, LA >>> >>> Sent from my iPhone >>> >>> On May 20, 2014, at 5:17 PM, Dave Lane via CnC-List < >>>> [email protected]> wrote: >>>> >>>> Well, as things usually go, something that worked in the fall doesn't >>>> in the spring. >>>> >>>> The engine starts but no cooling water flows out the exhaust - I did >>>> not need to find this out on launch day! >>>> >>>> Anyway, this is a C&C 29-2 with 2GM-F engine. I diagnosed it and it's >>>> fine all the way to and including the raw water out of the heat exchanger. >>>> When I blow into the hose going into the u-shaped exhaust mixer, it's >>>> plugged. The engine exhaust itself seems fine. After it goes through the >>>> mixer, there is about a 2" ID hose to the muffler then another 2" hose to >>>> the stern port. >>>> >>>> This problem may have been getting worse as the years went by as last >>>> year I was thinking the water flow was not as much as previous years. >>>> >>>> Questions: >>>> >>>> 1. Is it likely that the blockage is in the mixer? Any suggestion for >>>> what I should try next? >>>> 2. The mixer has a right angle elbow going into it - should I try to >>>> remove it? Or stick I wire in it to try to unclog it? >>>> 3. In order to motor "slowly" home (a few miles) from the marina, I >>>> made a run to Canadian Tire for "stuff" and I plugged the exhaust water >>>> input to the mixer and made a temporary hose from the heat exchanger that I >>>> could feed out of the cockpit locker and over the side (the water flow was >>>> great). Can engine be run without water flowing through the muffler? (ie. >>>> does it depend on water cooling?) >>>> >>>> Thanks in advance, >>>> >>>> Dave >>>> St. Margaret's Bay, NS >>>> "Vela" C&C 29-2 >>>> >>>> _______________________________________________ >>>> >>>> > > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > [email protected] > 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: [email protected] To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
