When to replace depends a lot on the environment to which it is used. There is no set time or hours or years or whatever. Salt or fresh water? Any vibration in the system due to engine alignment or cutlass bearing? What type of packing? In water and used year round or just seasonally? How much motoring? Cruising or racing? Just to mention a few variables.
When I purchased my 34 in 1999 I had the yard mechanic go through everything and replace hoses, packing, impellors, thermostat just for good measure. His inspection revealed the PO had replaced the hose with the wrong type and a few other items. Needless to say we replaced the hose. It is still there and doing fine 26 years later. I mostly race so overall no excessive amount of motoring, old fashioned packing gland and replaced packing 2 or 3 times over the 26 years, have replaced motor mounts, worn cutlass bearing and rebuilt prop so no vibration, haul every winter for 6 months. Your experience may vary. John Read Legacy III 1982 C&C 34 Noank, CT From: Jeff Nelson via CnC-List Sent: Thursday, March 20, 2025 6:51 PM To: cnc-list@cnc-list.com Cc: Jeff Nelson <jhnelso...@gmail.com> Subject: Stus-List Re: Hose I'd definitely replace it before it starts to come apart. That said... I replaced mine a few years ago 1979 C&C 30. Guessing it was original. There were cracks in the outer coating, and I was starting to lose sleep over it. So, that's likely pushing it to the extreme. The hoses don't get a lot of wear, aren't exposed to UV degradation, but have sea water and vibration to deal with. You will have to pull the transmission prop coupler to get the new one on...If it was like mine last done when it left the factory floor, you may need a new coupler as convincing it to release from the shaft may damage it. Cheers, Jeff Nelson Muir Caileag C&C 30 - 549 Armdale Y.C. On 2025-03-20 17:43, Robert Abbott via CnC-List wrote: Ed Thank you for your response...I agree that replacing it is a prudent thing to do. However, I am looking for a more definitive answer as to the prudent frequency of replacing it, e.g. # of engine hours, # of years, etc. What is the normal expected life span of the this hose/gland that seals the prop shaft from water egress? Rob On 2025-03-20 4:26 p.m., Edward Levert wrote: Robert Change it on your next haul out. It is peace of mind. Ed Levert Briar Patch 1981 C&C 34 New Orleans, La On Thu, Mar 20, 2025 at 2:17 PM Robert Abbott via CnC-List <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com> > wrote: My C&C 32 has a 1" prop shaft. Where it enters the stern hull before the packing gland, there is a hose gland approximately 6" to 10" long with several large adjustable clamps around it that covers the prop shaft. How often should that hose gland be replaced? Is it # of engine hours, # of years, etc. Replacing it after it ruptures could be impossible if the boat sinks which i understand to be the case. Any advice greatly appreciated. Rob Abbott C&C 32 - 1984 Halifax, N.S. Your contributions help pay the fees associated with this list and help to keep it active. Please help by making a small contribution using PayPal at: https://www.paypal.com/paypalme/stumurray All contributions are greatly appreciated. Your contributions help pay the fees associated with this list and help to keep it active. Please help by making a small contribution using PayPal at: https://www.paypal.com/paypalme/stumurray All contributions are greatly appreciated.
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