Gotta be a freeze plug that weeps. Contracts when cold and seals when warm. > On May 24, 2015, at 8:21 PM, Brent Driedger via CnC-List > <[email protected]> wrote: > > Interesting problem. > I have a small John Deere tractor with a 23 hp Yanmar engine. When the > temperature is hovering lower than minus 15c a small amount of antifreeze > leeks out onto the garage floor. I've always wondered why. > There's little change in the overall volume of the cooling system and all > summer long there's no issue. Maybe a Yanmar thing. > > Brent > 27-5 > Lake Winnipeg. > > Sent from my iPhone > >> On May 24, 2015, at 8:24 PM, robert via CnC-List <[email protected]> >> wrote: >> >> John: >> >> Thank you ....both good tips...your first one could be the culprit but your >> second one could also be the culprit.....the antifreeze (Preston) is >> approx. 8 years old....I will flush and replace it before Fall layup and see >> what happens. As I said earlier, it does not happen after launch and before >> haul....just during the cold of winter. >> >> A few years back, one of the engine block antifreeze drain valves came loose >> during the sailing & motoring season which was noticed when antifreeze >> entered the bilge....a little stress until the loose valve was detected. >> Some times we get lucky! >> >> Rob Abbott >> AZURA >> C&C 32 - 84 >> Halifax, N.S. >> >> >> >>> On 2015-05-24 3:33 PM, John Russo via CnC-List wrote: >>> Check to insure your engine block drain valves are tight before winter >>> storage. Second thought is weird but offered anyhow. Is antifreeze fresh? >>> Could there be a blockage somewhere where the antifreeze is diluted and >>> freezes which would expand and force the top stuff out somehow. I said it >>> was a weird thought! I will discuss it with the mechanic at the yard who is >>> pretty sharp and seen most things. >>> >>> John >>> C&C 32 >>> Arpeggio >>> >>> -----Original Message----- >>> From: CnC-List [mailto:[email protected]] On Behalf Of robert >>> via CnC-List >>> Sent: Sunday, May 24, 2015 11:25 AM >>> To: [email protected] >>> Cc: robert >>> Subject: Stus-List Antifreeze Mystery >>> >>> After the engine is winterized in the Fall, I place a plastic pan under >>> it.....not sure why but I do. Every Spring, there is approximately a half a >>> cup or 250 ml of antifreeze in the pan. >>> >>> I have looked everywhere for the source of this antifreeze but I can't find >>> out where it is coming from. The boat was launched 3 weeks ago, the engine >>> has about 3 hours on it since then, the pan is still under the engine but >>> there is no antifreeze in it. And the antifreeze does not appear during the >>> sailing season. >>> >>> I notice every Spring the level of the antifreeze in the 'overflow >>> container' is down a bit and I refill to the 'FULL LEVEL' but that container >>> is not leaking. It's a mystery! >>> >>> Anybody experience this and/or have any ideas where this antifreeze could be >>> originating from? >>> >>> Rob Abbott >>> AZURA >>> C&C 32 - 84 >>> Halifax, N.S. >>> >>> >>> _______________________________________________ >>> >>> Email address: >>> [email protected] >>> 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: >>> [email protected] >>> 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: >> [email protected] >> 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: > [email protected] > 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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