Hmmm, Russ, that's the link to the infamous Skookumchuck tugboat capsize. looks like there's lots of runaway diesel vid's, not sure which one represents us left coasters best. ;)
randy Tamanawas 29-II Hood River, OR From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Russ & Melody Sent: Sunday, May 26, 2013 8:18 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Fwd: Stopping a diesel Hi Martin & Josh, Diesels can also run away on ring blowby as illustrated by this extreme case in this video: It starts around 50 seconds. The west coast stoner narrative is kinda cute too. http://www.youtube.com/watch?v=QEfUblSDzww People might want to keep a mask & snorkel near whatever air choke device they decide on. So as you point out, "it's gonna blow" anyhow... and then it will stop :) Cheers, Russ Sweet 35 mk-1 At 09:03 PM 25/05/2013, you wrote: Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_23EAE197CC1B594FA8793397EBCD357D7B56C5DMI3DMIlocal_" Back in my Merchant Marine school days, during a diesel engine maintenance class a video was shown detailing what happens when a large displacement diesel engine runs away, uncontrolled by the governor as it fed on lube oil through the supercharger seals. Just before it failed (exploded) you could see fire shooting out between the block and head. When attempting to stop a runaway diesel do not place your hand over the air intake. Use foulweather gear or similar sacrificial air blocking material that will conform around the air intake. If you have a Halon (Calypso's engine space has a 7.5lb auto-deploy Halon system in place) or a larger CO2 extinguisher on board they may be used to slow the engine slightly to make the stopping easier. This sort of failure is rare in small auxillary diesel engines, but more likely with turbocharged engines. If a pleasure boater (power and sail) does basic maintenance (do not over fill the lube oil) and every few years calls in an expert to check the more complicated systems (especially the injection pump, head bolt torque, and turbo seals) the risk of runaway should continue to be small. Martin Calypso 1970 C&C 43 Seattle _____ From: CnC-List [cnc-list-boun...@cnc-list.com] on behalf of Josh Muckley [muckl...@gmail.com] Sent: Saturday, May 25, 2013 7:16 PM To: cnc-list@cnc-list.com Subject: Re: Stus-List Fwd: Stopping a diesel So let me get this straight: Run away engine - gonna blow. Decompress - gonna blow Sounds like a dammed if you do dammed if you don't. So don't decompress. Good to know for the normal "non-emergency" shutdowns. I'm still gonna do it when shutting of the fuel and air don't kill the engine. Thanks for checking me and the books, Josh -- _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com <http://www.cncphotoalbum.com/> CnC-List@cnc-list.com
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