Sent mine to a radiator shop and even they failed to remove all of the exhaust deposits. Save some time, trouble & money and just replace with new....and don't go cheap, replace the stainless steel coupler as well. In a message dated 9/10/2012 9:39:51 A.M. Eastern Daylight Time, joel.aron...@gmail.com writes:
I've read that the elbow can be removed and soaked in muriatic acid to dissolve the clog. Has anyone tried it? If you remove the hose leading into the elbow and measure the water flow and then measure it (or guesstimate) at the exhaust and there is a difference, it is the elbow or the nipple into the elbow. You might get lucky and only need to remove the nipple. Joel On Mon, Sep 10, 2012 at 9:34 AM, <_HONEYSAIL@aol.com_ (mailto:honeys...@aol.com) > wrote: Exhaust mixing elbow should be replaced, mine did the same in August and the EME was the culprit.. In a message dated 9/10/2012 9:32:38 A.M. Eastern Daylight Time, _jaridas5@msn.com_ (mailto:jarid...@msn.com) writes: Engine question. Have a Yanmar 3GMF20. Noticed this weekend the exhaust started sounding "like its hissing or more air with the water". Last few weeks it sounded a little different, but thought that since my slip changed at the yacht club I back up close to a bulk head and possibly just more sound reflected back? But after a 2 1/2 hour motor to a race this weekend it sounded worse. Checked the strainer, clear. Jumped in the water, checked for blockage at the thru hull, clear. No overheating or temp alarm. Ran the boat back to my club after the race. Didn't need much engine it was a down wind run in 15 +, launched the kite, smiled and laughed the whole way home. (The dark and stormies didn't hurt either, till sunday am) I'll pull the impeller today and throw in a new one, its the 2nd season on the present one. Is this the sound when the exhaust elbow is carbon'd up ? Oh and btw have to brag. Won the race, blowing steady 25 with some shots peaked to 32. Wild fun ride, reefed main up wind, heavy air 130%, 7 people on the rail. Down wind .... the hull only lets you go so fast. Jim Galaxy 34' Brielle, NJ = _______________________________________________ This List is provided by the C&C Photo Album _http://www.cncphotoalbum.com_ (http://www.cncphotoalbum.com/) _CnC-List@cnc-list.com_ (mailto:CnC-List@cnc-list.com) _______________________________________________ This List is provided by the C&C Photo Album _http://www.cncphotoalbum.com_ (http://www.cncphotoalbum.com/) _CnC-List@cnc-list.com_ (mailto:CnC-List@cnc-list.com) -- Joel 301 541 8551 _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
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