Sailing Magazine - Boat Doctor https://sailingmagazine.net/articles.sec-126-1-boat-doctor.html Wed, 27 Oct 21 00:00:00 -0400 en hourly 1 How do I choose a furler? https://sailingmagazine.net/article-2347-how-do-i-choose-a-furler.html Dear Boat Doctor, I need a new genoa furler on my Passport 40 and I am not sure where to start. I have looked through a couple catalogs and they seem to be sized to the length of the boat, but it fee...]]> How do I get rid of bottom paint buildup? https://sailingmagazine.net/article-2335-how-do-i-get-rid-of-bottom-paint-buildup.html Dear Boat Doctor, I have quite a buildup of paint on the bottom of my boat. In some places, it’s worn away, in other areas, it’s thick and peeling. I want to get it all off and start with a fresh...]]> How do I repaint my trailersailer’s bottom? https://sailingmagazine.net/article-2329-how-do-i-repaint-my-trailersailer%25E2%2580%2599s-bottom.html Dear Boat Doctor, I have a 1982 S2 5.5 Grand Slam. It’s stored on a trailer and has the original hull paint. I want to paint the bottom of it to freshen it up and to cover up the very fine spider c...]]> Is my autopilot right for my boat? https://sailingmagazine.net/article-2317-is-my-autopilot-right-for-my-boat.html Is my autopilot right for my boat?Dear Boat Doctor, I am installing an autopilot in my Compass 47, and I have some questions. I chose the Raymarine Evolution autopilot, specifically the EV400 core pac...]]> How do I stop stainless from rusting? https://sailingmagazine.net/article-2296-how-do-i-stop-stainless-from-rusting.html Dear Boat Doctor, I brought my boat from the Great Lakes to the Caribbean for the first time this year and now the corrosion on my boat’s stainless steel is making me crazy.  It has gone 20 ye...]]> Why is my autopilot showing errors? https://sailingmagazine.net/article-2283-why-is-my-autopilot-showing-errors.html Dear Boat Doctor, I am having some problems with my Raymarine autopilot. It’s an older unit and worked great right up until it didn’t. It’s a ST6000+ control with a Type 300 computer and a Typ...]]> Can I get hot water without the engine? https://sailingmagazine.net/article-2269-can-i-get-hot-water-without-the-engine.html Dear Boat Doctor, I am setting up my boat for long-range cruising and trying to be as self-sufficient as possible. I can cover my electrical needs with solar panels. My watermaker produces all the wa...]]> What’s a simpler sail setup for my boat? https://sailingmagazine.net/article-2262-what%25E2%2580%2599s-a-simpler-sail-setup-for-my-boat.html Dear Boat Doctor, I sail my Sabre 34 Mark II in an area where I very often sail directly upwind or on a very deep reach. My boat is not set up well for either point of sail, with a roller furling 125...]]> Is my preventer rigged incorrectly? https://sailingmagazine.net/article-2245-is-my-preventer-rigged-incorrectly.html Dear Boat Doctor, I have had a few close calls with accidental jibes, and I now typically use a preventer when sailing downwind. I just use a spare line and tie the boom down the to rail at the point...]]> How do I calculate righting moment? https://sailingmagazine.net/article-2229-how-do-i-calculate-righting-moment.html Dear Boat Doctor, I recently replaced the original standing rigging on my 1968 Islander 34. I wanted to make sure everything was correct, so I confirmed the wire sizes with my own righting moment cal...]]> What should I inspect regularly on deck? https://sailingmagazine.net/article-2213-what-should-i-inspect-regularly-on-deck.html Dear Boat Doctor,  I have read a lot about regular inspections of my boat. This seems like a really good idea, but I don’t know what to look for. What am I supposed to be looking for? Rob R...]]> Why won’t my house batteries hold a charge when powering? https://sailingmagazine.net/article-2180-why-won%25E2%2580%2599t-my-house-batteries-hold-a-charge-when-powering.html Dear Boat Doctor, I just got a new-to-me boat and I have a charging problem: the house bank won’t stay charged when I run the engine. When the engine is running, there is 13.5 volts at the alternat...]]> What emergency notification system should I carry? https://sailingmagazine.net/article-2175-what-emergency-notification-system-should-i-carry.html Dear Boat Doctor, I am interested in improving my onboard emergency gear. I have carried a personal EPIRB for years, but it feels inadequate. I have been looking at shipboard EPIRBs, but maybe I shou...]]> How do I fix a problematic fuel system? https://sailingmagazine.net/article-2166-how-do-i-fix-a-problematic-fuel-system.html Dear Boat Doctor, I am struggling with the fuel system on my Hylas 51, which seems to have a lot of small issues that add up to a bigger annoyance. First, I don’t have enough tankage and no good wa...]]> How do I diagnose my engine problems? https://sailingmagazine.net/article-2154-how-do-i-diagnose-my-engine-problems.html Dear Boat Doctor, I am having some problems with my Yanmar 4JH2DTE, and I’m embarrassed to say I may have created one of the problems myself. I installed a new Balmar alternator and an AltMount ser...]]> Why is my engine suddenly flagging? https://sailingmagazine.net/article-2144-why-is-my-engine-suddenly-flagging.html Dear Boat Doctor, I am having a problem with my engine, a Yanmar 4JH2DTE.  It has always worked well, but recently I have not been able to get it to run over 2,200 rpm. I checked the Racor and t...]]> Can I run air conditioning from an inverter? https://sailingmagazine.net/article-2136-can-i-run-air-conditioning-from-an-inverter.html Dear Boat Doctor,  I am taking my boat to Grenada and would really like to be able run an air conditioner. I have read about the new efficient air conditioners that you can run from an inverter....]]> What grease should I use on my winches? https://sailingmagazine.net/article-2117-what-grease-should-i-use-on-my-winches.html Dear Boat Doctor, I am doing some maintenance on my old electric Barient winches. I have taken down the manual parts of the winches, and I am pretty clear on how to clean and lubricate those parts. I...]]> How should I set up a sail for heavy air? https://sailingmagazine.net/article-2104-how-should-i-set-up-a-sail-for-heavy-air.html Dear Boat Doctor, I own a Caliber 40 and have been working my way down the Windward Islands, planning to spend hurricane season in Grenada. The trip has been great, but we’ve been caught a little o...]]> How do I fix a saggy boom? https://sailingmagazine.net/article-2091-how-do-i-fix-a-saggy-boom.html Dear Boat Doctor, My Selden boom vang doesn’t seem to hold up my boom any more. It was OK before I installed the main, but now the boom just sags. For now, I have resigned myself to holding up the ...]]> How can I keep corrosion at bay? https://sailingmagazine.net/article-2082-how-can-i-keep-corrosion-at-bay.html Dear Boat Doctor, I have owned my Tartan 37 for more than 25 years, first on freshwater and now in the Chesapeake and the Bahamas. I love saltwater, but it is eating my boat. What can I do to keep th...]]> Why does the roller-furling drum lose wraps? https://sailingmagazine.net/article-2073-why-does-the-roller-furling-drum-lose-wraps.html Dear Boat Doctor, We stored our boat on the hard in Puerto Rico and launched after hurricane season. When we put the boat back in the water, I had a rigger help me re-install the sails. When I went t...]]> Why is my alternator eating the belt? https://sailingmagazine.net/article-2065-why-is-my-alternator-eating-the-belt.html Dear Boat Doctor, I recently upgraded the alternator on my Yanmar 4JH2DTE and things aren’t going smoothly. It is a Balmar 100A alternator with a Max Charge alternator. The alternator is working gr...]]> What’s wrong with my Frigoboat system? https://sailingmagazine.net/article-2051-what%25E2%2580%2599s-wrong-with-my-frigoboat-system.html Dear Boat Doctor, I installed a Frigoboat keel-cooled system a few years ago. The system worked amazingly well until last summer when I noticed that it would cool down very nicely if the icebox was w...]]> Why does my shore power breaker trip? https://sailingmagazine.net/article-2029-why-does-my-shore-power-breaker-trip.html Dear Boat Doctor, Every couple days the shore power breaker on the dock blows when my boat is connected to it. This started happening when the marina replaced the power pedestals. How do I know if th...]]> Why does my bilge smell like the head? https://sailingmagazine.net/article-2011-why-does-my-bilge-smell-like-the-head.html Dear Boat Doctor,I am having a problem with a black water smell in the bilge. Well at least I am pretty sure it’s a black water smell, I don’t really know. Do you some ideas how I can diagnose my ...]]> How do I fix a failed fiberglass repair? https://sailingmagazine.net/article-1997-how-do-i-fix-a-failed-fiberglass-repair.html  How do I fix a failed fiberglass repair? Dear Boat Doctor, I need some advice on a failing fiberglass repair at my keel stub joint. There is a crack that appears to be the result of repair tha...]]> How should I lubricate winches? https://sailingmagazine.net/article-1982-how-should-i-lubricate-winches.html Dear Boat Doctor, My winches desperately need to be lubricated, and it’s been more than a few years since I’ve done it. A friend told me to use wheel bearing grease but cautioned me not to use it...]]> Is my shaft seal collar OK? https://sailingmagazine.net/article-1983-is-my-shaft-seal-collar-ok.html Dear Boat Doctor, I just bought a new-to-me Beneteau 40 with a PSS dripless prop shaft seal. I appreciate the dry bilge, but those little set screws holding the sealing collar in place make me nervou...]]> What line should I use for the mainsheet? https://sailingmagazine.net/article-1960-what-line-should-i-use-for-the-mainsheet.html I recently bought a Passport 47, and it’s in really good shape but a bit of the running rigging is tired. I need to replace the mainsheet and I have questions on the running backstays. First off, what type of line should I use for the mainsheet? It is just regular double braid now and the guy at the chandlery suggested Dyneema, so I am not sure what to use. Second, the boat has running backstays...]]>