My engine (2GM20) had the elbow replaced prior to my purchasing; apparently it had split, because we had to clean soot off of everything; engine, cabin, and lockers; should I be looking at the hoses and the muffler for buildup or corrosion? thanks
Richard 1987 33-II Richard N. Bush Law Offices 235 South Fifth Street, Fourth Floor Louisville, Kentucky 40202 502-584-7255 -----Original Message----- From: Robert Abbott <robertabb...@eastlink.ca> To: Dennis C. <capt...@yahoo.com>; cnc-list <cnc-list@cnc-list.com> Sent: Fri, Nov 16, 2012 9:59 pm Subject: Stus-List Yanmar exhaust mix elbow pluggage question/survey Dennis: Questions: When you say "you cleaned the exhaust elbow", was it only the 'U' shaped piece you took off to clean or did you remove the whole assembly via the 4 bolts from the exhaust manifold? If it was only the actual 'U' shaped mixing elbow, how did you remove it from the 'coupler' that attaches it to the piece that bolts to the exhaust manifold? My engine is a Yanmar 2GMF, 1984.......spent 21 years in fresh water and the last 7 seasons in salt water. I actually have an old, complete unit in my garage removed and replaced earlier this season from a C&C 32 here that was mostly fresh water used. The actual mixing elbow was badly corroded inside and it split causing both water and gas leakage. When I saw it it made me wonder about the condition mine is in. Regards Bob Abbott AZURA C&C 32 - 84 Halifax, N.S. On 2012/11/16 11:57 AM, Dennis C. wrote: I just cleaned the exhaust elbow on a Yanmar 2GM on a 29 MK? for a client for the second time in 3-4 years. I have other friends with Yanmars who have never had to clean the elbow. This 29 rarely motors longer than from the slip to the harbor entrance and back. The other boats sometimes motor long distances. I am just curious as to the root cause for the pluggage. Is it usage? Is it the model? For those listers that have frequent mix elbow pluggage, how do you use your Yanmar? Which Yanmar do you have? Do you motor for long periods or just to the harbor entrance and back? Could frequent short trips hasten pluggage? Does long periods of motoring prevent pluggage? Dennis C. Touche' 35-1 #83 Mandeville, LA _______________________________________________ his List is provided by the C&C Photo Album ttp://www.cncphotoalbum.com nc-l...@cnc-list.com _______________________________________________ his List is provided by the C&C Photo Album ttp://www.cncphotoalbum.com nc-l...@cnc-list.com
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