I think he means the injection elbow where the water enters the exhaust stream. The high heat in this area can cause clogs of salt and soot. They are easy to remove, clean, and replace.
Jake Jake Brodersen "Midnight Mistress" C&C 35 Mk-III Hampton VA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley via CnC-List Sent: Tuesday, May 05, 2015 7:10 PM To: C&C List Cc: Josh Muckley Subject: Re: Stus-List Overheating as high RPM only "What's a cross over elbow?" I was wondering the same thing... On May 5, 2015 6:29 PM, "Richard Bush via CnC-List" <cnc-list@cnc-list.com> wrote: OK, what's a crossover elbow? > On May 5, 2015, at 5:58 PM, ahycrace--- via CnC-List <cnc-list@cnc-list.com> wrote: > > Tom > I had the same problem and it turned out to be the crossover elbow, changed it and the problem went away. You can get a kit with all new bolts and gaskets from oldport marine in Newport RI. (Yanmar 3gm30) I hear it is a common thing. It was easy to do. > > Gary Kolc > ---- Chuck S via CnC-List <cnc-list@cnc-list.com> wrote: >> I clean my copper tube heat exchanger with 1/8" diameter wooden dowels bought from an art supply store like Michaels. Once a year. Pipe cleaners would be better, but can't find them anymore. >> >> >> Chuck >> Resolute >> 1990 C&C 34R >> Broad Creek, Magothy River, Md >> >> ----- Original Message ----- >> >> From: "svpegasu...@gmail.com via CnC-List" <cnc-list@cnc-list.com> >> To: cnc-list@cnc-list.com >> Sent: Tuesday, May 5, 2015 12:51:55 AM >> Subject: Re: Stus-List Overheating as high RPM only >> >> >> >> If you have a heat exchanger, that could be getting clogged. Open the end/s and look at the tubes. Sea water flows through these cooling the coolant. Over time they plug up and need to be cleaned. I use a long drill bit and doubled up 0.040 safety wire, then a bore brush. >> >> >> >> >> >> >> >> Doug Mountjoy >> >> svPegasus >> >> LF38 >> >> just west of Ballard, WA. >> >> >> >> >> ------ Original message------ >> >> From: Tom Buscaglia via CnC-List >> >> Date: Mon, May 4, 2015 18:19 >> >> To: cnc-list@cnc-list.com ; >> >> Subject: Stus-List Overheating as high RPM only We did a run last weekend to a local harbor for the weekend. Windwas fluky and it was a short trip so we were motoring. Alera has aYanmar 3HM35 with around 700 original hours and was running fine at ourusual cruising RPM of 26-2800 on the tach. The hot alarm went offand I let her cool down and then ran at a lower ROM (1800 or so) and nomore alarms. When I got to our destination, I cleaned out the rawwater trap as it was pretty crapped up. On the way back the alarmwent off again but this time all I had to do was throttle back to around2200 and it was fine. Much less steam/smoke that on the wayout. >> >> Today I checked the fan belt on the pump and it was a little loose so Itightened that. I'll be getting her hauled next week for a pressurewash, prop grease and zinc replacement, and will check the intakethen. >> >> Aside from the intake, belt and crap trap, anything else I shouldcheck? >> >> Tom B >> >> >> Tom Buscaglia >> SV Alera >> 1990 C&C 37+/40 >> Vashon Island WA >> (206) 463-9200 >> www.sv-alera.com >> >> >> _______________________________________________ >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go to the bottom of page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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