A machinist friend of mine told me that his recommendation is to run it for 3 hours every time. He had 3 one hour goals. IIRC the first hour was to drive the moisture out of the oil, the second hour drives the moisture out of the engine, and only during the third hour do you really start burning of any carbon build up. It seems that moisture is the biggest problem. Moisture causes corrosion and accumulates carbon. No moisture, no problems. In the winter I keep the moisture out by running a block heater. I presume that frequent enough engine ops during the summer is sufficient... Then again maybe not.
Josh On Oct 6, 2016 8:43 PM, "svpegasu...@gmail.com via CnC-List" < cnc-list@cnc-list.com> wrote: > I knew that. Don't know what I was thinking. Must of had a brain fart. > > I do have to agree with the dirty injector route. Also these engines need > to get fully warmed up and run under load often. They are redesigned > tractor engines originally made to operate at 70 to 75% power for hours on > end. > > A friend would start his 1cyl. Yanmar cruise out of the marina. Set sails > shut it down. Then when finished sailing start itback up back to his slip. > Ended up replacing his engine because of this. FWIW. > > > Doug Mountjoy > > svPegasus > > LF38 #4 > > just west of Ballard, WA. > > > > ------ Original message------ > > *From: *Josh Muckley via CnC-List > > *Date: *Wed, Oct 5, 2016 20:17 > > *To: *C&C List; > > *Cc: *Josh Muckley; > > *Subject:*Re: Stus-List yanmar diesel > > > No glow plugs on these engines. Precombustion chambers instead. I can > start mine in the dead of winter with seemingly no other indication that it > is cold outside. > > Josh Muckley > > On Oct 5, 2016 11:03 PM, "svpegasu...@gmail.com via CnC-List" < > cnc-list@cnc-list.com> wrote: > >> How many hours on your engine? How are you filters? Does it have glow >> plugs, a bad glow plug will cause hard starting. Dirty injectors will also >> cause this, but I think there would be more issues, like poor idle. With >> the smooth running agter start I don't think it is fuel related. >> >> >> Doug Mountjoy >> >> svPegasus >> >> LF38 #4 >> >> just west of Ballard, WA. >> >> >> >> ------ Original message------ >> >> *From: *Michael Jones via CnC-List >> >> *Date: *Wed, Oct 5, 2016 18:19 >> >> *To: *cnc-list@cnc-list.com; >> >> *Cc: *Michael Jones;Tristan Jones; >> >> *Subject:*Stus-List yanmar diesel >> >> >> Hello experts, >> >> I wonder if you can help me with any suggestions. I have a C&C34 with a >> 3GM30 F. This motor runs well and smoothly, water circulates, no smoke. >> Recently it has been taking more and more revolutions to get it started. >> When it is turning over there does not appear to be anything going on, but >> when it starts its immediately smooth and normal (no coughing and >> spluttering). >> >> This leads me to think that there must be a leak in the fuel system which >> is allowing the fuel to drain back out of the injectors. The fact that it >> seems to start with all 3 cylinders suggests that the leak is before the >> injector pump. >> >> I cannot see any fuel leaking out at the supply pump or filter, so I'm >> wondering if anyone can suggest where I should start looking? Or what might >> cause this and not show fuel leaking or spraying out? I'd like to introduce >> some method into my troubleshooting! >> >> Thanks and regards >> >> Mike Jones >> c&C34 Seanachai >> Oak Bay, Victoria. >> >> >> >> On Sep 25, 2016, at 6:09 AM, Dave S via CnC-List <cnc-list@cnc-list.com> >> wrote: >> >> Good morning all. Several weeks back there was a discussion surrounding >> issues with bulging keel castings in colder climates. Been meaning to >> post some photos I took awhile back, here they are: >> >> >> http://cncwindstar.blogspot.ca/ >> >> >> Dave 33-2 Windstar >> >> _______________________________________________ >> >> This list is supported by the generous donations of our members. If you >> like what we do, please help us pay for our costs by donating. All >> Contributions are greatly appreciated! >> >> >> _______________________________________________ >> >> This list is supported by the generous donations of our members. If you >> like what we do, please help us pay for our costs by donating. All >> Contributions are greatly appreciated! >> >> > _______________________________________________ > > This list is supported by the generous donations of our members. If you > like what we do, please help us pay for our costs by donating. All > Contributions are greatly appreciated! > >
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