Re: Chesapeake Surveyor
Hi Alan. Apparently Mike is retiring in a couple weeks so we won’t be able to use him. Hope you, Laura and Ora Pai are well.
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Ian & Margaret Loca Lola II SM153
On Sep 20, 2020, at 10:39 AM, Alan Grayson <bazgrayson@...> wrote:
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Re: Batteries starting to get weak - MMM - What to do -
Scott SV Tengah
Joerg,
As I mentioned before, I believe, it is recommended (and I do) charge to full once a month. That resets the battery monitor to 100% and also balances the batteries since for every battery I know, balancing only occurs when nearly full. That has to do with the very flat voltage vs. SOC curve. There's bottom balancing, too, but that's beyond my comfort level. There is a significant difference between charging full once a month and keeping it full. The former is recommended, the latter is generally accepted to be detrimental with no known benefits. -- Scott 2007 A54 #69 SV Tengah http://www.svtengah.com
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Re: Batteries starting to get weak - MMM - What to do -
Joerg Esdorn
An interesting tidbit from the manual for my MV batteries. One of the „events“ causing an alarm on the Masterbus system is that the batteries HAVE NOT been fully charged for a period - default 31 days: „ Last time fully charged serves as an event source. To prevent damage the batteries must be charged to the full 100% regularly. It is a common misconception that Lithium- Ion batteries should not be fully charged.“
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Re: Chesapeake Surveyor
Alan Grayson
Hi Ian, hope you guys are doing well, we just got an insurance survey from Mike Previti based out of Solomon's. Very happy with the results.
His number +1 410-610-8761
Regards
Alan Grayson
SM 406 Ora Pai
Annapolis
From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> on behalf of Ian Townsend <smlocalola@...>
Sent: Saturday, 19 September 2020 11:27 AM To: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> Subject: [AmelYachtOwners] Chesapeake Surveyor Looking for a surveyor in the vicinity of Deltaville, VA for an insurance valuation. Any suggestions.contact details? Ian
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Re: Wind Vane Autopilot
Ian Park
I had a hydrovane on my Santorin. It was there when I bought it. It worked well most of the time, but on occasions (especially downwind in a blow) it would veer off course badly and I would have to free the wheel to manually steer back. Also when we encountered sargasso weed crossing the Atlantic the vertical rudder collected the weed and could not work . I have since removed it and sold it. On removal the gel coat on the stern has been worn away badly, and the holes elongated. I did have to tighten the six securing bolts on occasion. I think it would be preferable to add extra layers of glass inside the lazarette as well as the wooden supports on the outside. I did also change the penny washers for stainless steel backing plates. The lazarette on the Sn and I believe the SM is not the main stern bulkhead (its the bulkhead between the lazarette and the aft cabin). It seems to be a lighter build than the rest of the boat. It is also why it is recommended not to over tighten the back stays on the mizzen, other wise you will get hairline fractures where they are bolted on the stern. I am happy with the prop shaft alternator which keeps the fridge, autopilot and instruments running without any battery drain. I carry a spare type 2 rotary drive which takes 10 minutes to swap over. I also have 200watts of solar panel on the aft rails which can be tilted towards the sun. I have never had my batteries drop below a 90% charge, and then only at anchor.
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Re: Anchor sizing
Thank you so much, Nick and Jean Pierre. Your messages are really clarifying. I very much appreciate the valuable information. I'll request a quotation to Ultra and Cromox, and see if I survive the impact :-). Best Victor
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Re: Bilge Tube Float Switch
eric freedman
Gary,
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My switch from the factory was originally an all all plastic bat. No copper. That must have been from the PO. Fair Winds, Eric
On September 19, 2020 at 1:25 AM Gary Wells <gary@...> wrote:
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Re: Bilge Tube Float Switch
eric freedman
Its just a single pole single throw switch, if it works it is fine. You just have to add something to extend its length.
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Fair Winds, Eric SM 376 Kimberlite
On September 19, 2020 at 2:33 PM "Courtney Gorman via groups.io" <Itsfun1@...> wrote:
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Re: Batteries starting to get weak - MMM - What to do -
Scott SV Tengah
I used to own and race BMWs and was a big fan of them.
Previously, they recommended oil changes every 3,000 miles. When they started including free oil changes, suddenly their recommendation was that you could go 20,000 miles or more between oil changes. Nothing changed in the engine nor the oil they used. From a business perspective, it makes complete sense. Since BMW started including the oil changes, they rationally, as a business, determined that they could save money by only giving you 2 oil changes before your warranty ran out. Any damage due to extended oil change intervals would probably occur after that. When the customer was paying for oil changes and they wanted to protect their reputation, you were supposed to change the oil 6-7 times as often. If I was a profit maximizing business, I would want my batteries to last the warranty period + 1 day. Or for you to get enough loss of capacity that you buy new ones. They go out of business if their customers only buy once every 10-15 years. For this reason, I rely on statistically valid research from people who are not conflicted to make my decisions. When I leave the boat, I setup a simple programmable relay that drives a load will keep the SOC between 40-70%. Sure, there's one guy who seemed to do ok (in 1 out of 2 tests) when he goes against the non-conflicted researchers' advice...but he also sells lithium related products. It's not much effort and there's very little known downside to doing what the research says. Or you can trust the guys trying to sell you stuff and who have a strong incentive for you to buy from them again once the warranty period ends. -- Scott 2007 A54 #69 SV Tengah http://www.svtengah.com
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Re: Batteries starting to get weak - MMM - What to do -
Porter McRoberts
Mark. I think your insights are spot on. Both #1 and # 2.
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However, It seems to me that with access to solar or other power a charger should be able to be programmed to perfectly care for a battery, so that degradation likelihood is at its lowest potential. I’m sure the lack of data is from your 1 and 2. Interesting the difference in suggestions for parking. Porter McRoberts S/V IBIS A54-152 WhatsApp:+1 754 265 2206Www.fouribis.net
On Sep 19, 2020, at 6:44 AM, Mark McGovern <mfmcgovern@...> wrote:
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Re: Bilge Tube Float Switch
Mod will have exactly what you need I replaced mine last year in the meantime I took some small tubing and made a temporary set up
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On Sep 19, 2020, at 6:00 AM, Ross Hickey & Donna Hammond via groups.io <southernadventurer@...> wrote:
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Re: deck leak
Thomas Peacock
We have also experienced a small deck leak, albeit forward of yours. What I have found is the screws that hold in the metal plating associated with the windows can work loose a little bit, allowing water to come in through the screw hole. This can happen even if the screw looks okay on the outside. Tom Peacock SM 240 Aletes Chesapeake Bay
On Sep 19, 2020, at 12:52 PM, Miles <milesbid@...> wrote:
-- Tom Peacock SM 240 Aletes Chesapeake Bay
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Re: Wind Vane Autopilot
Dennis Johns
Hi Bernd, If you don't have a solar arch that sticks out over your stern, you should look at the Hydrovane option. They have brackets that work well on the many different stern configurations and their product can be offset from the centerline: https://hydrovane.com/ Dennis Johns Libertad Maramu 121
On Sat, Sep 19, 2020 at 7:48 AM Bernd Spanner <bernd.spanner@...> wrote:
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Re: Fuel Line
Mark McGovern
Mark,
Can you be more specific on which copper fuel line you are talking about? If so, let me know I will try to take a measurement for you. -- Mark McGovern SM #440 Cara Deale, MD USA
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deck leak
Miles
Deck leak.Hello All, My boat has developed a small deck leak over the chart table. So far it is small and is visible only by looking at the slight bubbling and dampness in the head liner. I suspect the main traveler track, but I am hoping that someone else has had a similar problem and can offer suggestions.
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Re: Batteries starting to get weak - MMM - What to do -
Porter, That's part of the issue. If you read each manufacturers instructions for how to store their LiFePO4 batteries you will get very different answers. There is some level of commonality between some of them, but the specific recommendations are quite different from manufacturer to manufacturer. See below for the details.
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Re: Batteries starting to get weak - MMM - What to do -
Steve Bell
There is an interesting detailed article on www.marinehowto.com website on lithium batteries. check it out
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Re: Additional filter in raw water intake for the engine before the heat exchanger
Randall Walker
Joerg, Good point. There should be two flushing attachment points on the engine, one just after the water pump and one before the exhaust so you can run a flush, with a barnacle slash calcium cleaning solution there are many brands. I recently rigged up a system to do just this. It should be standard on all ocean boats. Randall A54#56 Gibraltar
It has been a surprise to me how much seaweed and other dirt accumulates in the heat exchanger for the gear box even though there is a strainer at the intake point. Amel recommends that the heat exchanger be cleaned out yearly and it‘s definitely necessary. I checked the manual for my Volvo D3-110 engine and it says the following on page 104:
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Additional filter in raw water intake for the engine before the heat exchanger
Joerg Esdorn
It has been a surprise to me how much seaweed and other dirt accumulates in the heat exchanger for the gear box even though there is a strainer at the intake point. Amel recommends that the heat exchanger be cleaned out yearly and it‘s definitely necessary. I checked the manual for my Volvo D3-110 engine and it says the following on page 104:
„Volvo Penta recommends that a seawater filter be fit- ted to guarantee the correct cooling water flow to the engine and reverse gear. Otherwise there is a risk of contaminants in the seawater blocking the reverse gear cooler and other cooling system components.“ I read this to suggest that there should be a second filter in the engine intake line after the main intake strainer and before the heat exchanger. I wonder why Amel isn‘t doing that and if anyone has done so. Cleaning out the heat exchanger is a difficult task, cleaning out a second filter would be a simple thing to do on a regular basis. Joerg Esdorn Amel 55 #53 Kincsem Vigo, Spain
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Wind Vane Autopilot
Hi!
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