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All, Our 43c has Allison transmissions and I am trying to figure out the proper procedure for checking the fluid level in each. I.e. check them cold? After they have been running? Check them while they are running etc? This is the first boat I have owned with Allisons. Thanks in advance!

All, I am trying to figure out what the approximate horsepower is for our 6V92's. I know it also has to do with injector size so there are some variations. With that said what would the typical HP be for a twin turbo 6V92. They are in our 1981 43 SF. Thanks in advance!

Today I pulled the panel on the old Sentry battery charger that’s in our 43’ SF. I noticed two small red wires connected to terminals on the charger that were marked “ING”. I’m assuming ING means ignition. If that is the case, I don’t know what these wires are for. Any information is greatly...

Good morning, Seeing if anybody has experience with Xantrex battery chargers and or Promariner ProNautic battery chargers on their boats. I need a 3 bank 40amp battery charger to replace the old worn out Sentry model that has served our boat well. Thanks in advance!

All, I need to replace 2 of my 4 8D batteries during this winter's layup. Wondering what you all use and have had good fortune with and also which brand you have had not so good success with. Lead acid, not gel. Thanks in advance!

Hey all, I am having an issue with the economaster hot water heater on our 43’ Hatteras. I am gathering this is the original water heater. It doesn’t leak, so I would prefer to still use the unit. I believe the heating element is bad. Does anyone have any experience with these units and what...

I have a question about the build of Hatteras's hull sides. In what year did Hatteras start using balsa wood cored hull sides in their convertibles? I have heard many different years prior to becoming a member of this great forum. I knew someone on here, more like multiple people would know...

All, I have not been able to locate the waste holding tank on our boat. Can anyone tell me where exactly it would be located in the bilge and the approximate tank capacity? Also, I was pumping out the tank last weekend to get it ready for winter haul out and I was only able to catch a...

Hello All, I believe my onboard (original) battery charger is on it's last leg. I am amazed the charger has last for 39 years! Impressed! It does not appear to be charging the port bank of batteries and it is short cycling while its powered up. Comes on for about 8-10 seconds, shuts off...

All, I need to replace both of my trim tab cylinders on our 1981 43 Convertible. The trim tab system manufacturer is Boat Leveler. I have to pull the boat out of the water to make the repairs and want to make sure I purchase the correct size cylinders for our boat. The boat is in the water...

All, I recently had the blower motor on our salon a/c unit go out. Cruisair model EBS16SC. Trying to find a replacement motor but not having much luck. Any suggestions? I have attached a few pictures for reference. Thanks!!

All, I am thinking about replacing my onboard battery charger that I believe is the original. This is the first boat that I have owned with diesels/8D batteries. I have (4) 8D batteries that I believe are wired together in two banks to make 24 volts a side. Is this a typical set up for a 43...

All, I noticed the floor in the cockpit of our boat was warm to the touch and found the large blue box under the cockpit floor to be the source of the heat. It was a really hot day and the a/c units on the boat pretty much ran nonstop. The box appears to be electrical. It is approximately...

All, Any help would be greatly appreciated. The AC volt meter on my main panel does not register any voltage when connected to shore power. However, when I am running off of generator power it registers as normal. Systems are the boat are powering up as normal and I am getting proper...

All, I hope everyone is doing well and enjoying the start to a great boating season. We own a 1981 43' Hatteras Convertible that has (2) 16,000 btu Cruisair split A/c units. Every once in a while I will get a "LO AC" code on the thermostat which I read is a safeguard for the compressor...

Hey all, I am having an issue with the economaster hot water heater on our 43’ Hatteras. I believe the heating element is bad. Does anyone have any experience with these units and what style of heating element they require? I’m assuming due to the age of the unit it would take one of the 4 bolt...

On our 43c, the voltage meter on the main panel does not register any voltage when connected to 50amp service shore power. I’ve tried different shore power lines, different marinas. Still no voltage reading. I always have AC power coming into the boat, the voltage meter just doesn’t read any...

I wanted to first say thanks to the moderators for accepting my request to be a member of the forum. I look forward to learning more about our boat from you all. 1981 Hatteras 43c w/ DD 6V92’sFew tech questions. * Need help with light switches and what all they turn off and on. She has almost as...