I was having problems with my cooling system (raw water). After running the Yanmar for a while and then stopping, when I turned it back on, the high pitched whistle and red light would come on and stay on for longer than I thought proper. Water was coming out the exhaust, but it was still worrisome. After checking water flow through the system, I still found nothing apparently wrong.
Then I wiggled the water inlet hose just above the thru-hull and discovered some small cracks. Hose was still apparently intact, but on further inspection, there were tiny cracks which went through the hose. I replaced the hose and have had no further problems. Same kind of hose you are talking about (1980?) but there was just a little air getting into the system - enough to cause the signals. So, it will be hose patrol for me over the winter (more of the same stuff on some drains) - just winterized yesterday and will haul today or tomorrow. Gary Nylander 30-1 Penniless #593 Maryland ----- Original Message ----- From: bria...@aol.com To: cnc-list@cnc-list.com Sent: Wednesday, December 05, 2012 8:54 PM Subject: Re: Stus-List Fuel fill hose replacement Alan, Don't stop with checking just the fuel hoses. My 1986 Landfall 39 had very badly "weakened" deck drain hoses. Looking at them, I would never have guessed how weak they were. I bought the boat about 2 months ago, and just had it surveyed after doing a fair amount of work in preparation for the survey. The surveyor picked up on the hoses, and he was absolutely correct! While they looked fine, when they were flexed they showed surface cracks. When I tried to remove them, they ripped apart. It appears that the wire reinforcement had corroded internally, and the hoses rubber had simply deteriorated. These were the "Shields" brand black hoses with the green printed labeling on them. Doing a further search, we found the same type (although different diameter) Shields black hoses used on the head seawater intakes and the galley sink drain. All exhibited similar decay. Bill Hartman C&C Landfall 39 "MYSTY" Charlottesville, VA. ------------------------------------------------------------------------------ _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
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