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2019 November 1
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
2019 October 1
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
2019 July 1
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
2019 June 1
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
2019 May 1
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
2019 April 1
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
2019 February 1
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
2019 January 1
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
2018 November 19
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
2018 September 1
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
2018 July 1
 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
2018 June 1
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
2018 May 31
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
2018 April 1
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, do I need to use those all the time? They are made of wire and hard to handle, they tend to rub on my nice new mainsail too. Can you shed some light on this?
2018 January 1
I’d like to install some USB ports to charge phones and tablets on my boat. I have a J/35 built in 1986, so the entire interior has exactly one 12-volt receptacle built into the electrical panel next to the starboard quarterberth. I’m OK with that, but my kids seem to run their iPods all the time, so I need a way to charge them without fighting over the single receptacle. My thought was to install two USB ports, one going forward to the V-berth and one over to the port quarter berth. How do I connect them to the electrical system?
2017 October 1
Dear Boat Doctor, At the tail end of a recent cruise, I went to start the engine and heard the distinct thud of a dead battery. But when I checked the batteries, all was well. I tried the starter aga
2017 September 1
Dear Boat Doctor,I just got a new RIB, and I am looking for the best way to manage navigation lights on it. I’d like something mountable that won’t eat through batteries. Any ideas? Shane William
2017 September 1
Dear Boat Doctor, I am having a problem with a dock line. The distance between the cleat and the chock is about 4 feet, long enough that the elasticity in the dock line “works” enough at the choc

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