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  1. Dubed

    Belt size confirmation

    The alternator kit is aftermarket and would have come with an appropriate sized belt. There's no way to tell you what that is. The alternator kit on my 3.7 uses a #15505 belt which I'm pretty sure is 7/16".... Maybe look up original belt size for your motor and that should give you the width...
  2. Dubed

    Random

    It needs a couple fenders hanging off the sides for shopping cart protection.
  3. Dubed

    Dead Batteries

    No wing nuts, no corrosion. Part of my commission routine every year is to clean each and every connection with a brass wire wheel. This was only the 3rd time I used the boat this year, everything was still nice and shiny. The one thing I found that may have been an issue was one terminal...
  4. Dubed

    Dead Batteries

    Update; Was on the water for 10 hours yesterday fishing. Shut off motor in between drifts all day, never had a problem starting back up. I cleaned and all connections in the circuit, apparently it was a bad connection somewhere but I really didn't see one with issues. Guess I got it though.
  5. Dubed

    Watch this Mercury approach a sand bar 😆

    Wow! Crazy ads back then
  6. Dubed

    Dead Batteries

    I took the day off from work tomorrow to go through the whole system. I'll check and clean all connections and grounds. The batteries were good, so I'll install them. Im also going to install a real marine battery charger. After all that is done, I'll take it out for the day (and bring a...
  7. Dubed

    Dead Batteries

    No. I was out fishing alone. Haven't been able to look at it since. I will be working on it tomorrow. Also never duplicated it that day after swapping batteries
  8. Dubed

    Dead Batteries

    So, Im "trying" to melt the lead on the jumper cable to prove theres a short?? Sounds a bit sketch. ;)
  9. Dubed

    Dead Batteries

    Barely touch the key. It fires right up. 1 to 2 seconds. Sometimes need to start a second time if cold and stalls
  10. Dubed

    Dead Batteries

    Then I guess my course of action will be to check and clean every connection "again" in case I missed something. If it happens again, I'll swap out the starter with the new one I have. Installing a new starter on a 3.7 is a painfull process when the motor is in the boat (but it's do-able).
  11. Dubed

    Dead Batteries

    Im not speculating. Its been my experience (mainly with electric/air) that a solenoid either opens and closes, or it doesnt. It was the only thing I changed before this trip. Probably just a coincidence. I'll get in there over the next couple days and do some testing to the best of my ability.
  12. Dubed

    Dead Batteries

    I installed a new solenoid this year. New doesnt always mean good. I understand its really just a bridge to jump the full 12 volts over to the starter when the ignition is activated. Is it possible for the solenoid to be working but not sending the full 12 volts? Maybe I just bought a bad one...
  13. Dubed

    Dead Batteries

    Well, it looks like ill be changing the starter then. Is there any way to test it while still on the boat? Im a decent wrench, but electric is definately my weak area.
  14. Dubed

    Dead Batteries

    If the starter had an internal short, wouldn't it just be nonfunctional? I have a new starter, maybe I should just swap it out. I like to understand why and not just change parts. The one place I haven't checked connections is in the 1/2/both switch. I'll definately clean them up before I put...
  15. Dubed

    Dead Batteries

    Solenoid is new. I have a new starter on the shelf. Why would throwing another battery in fix the issue for the remainder of the day?
  16. Dubed

    Dead Batteries

    I'll also mention that Interstate said the cranking battery was still strong enough that it should have started the motor. When trying to start, the engine would struggle to turn over slowly for a second, then click, click, click like a dead battery. I swapped out for one of my new trolling...
  17. Dubed

    Dead Batteries

    Update; Both batteries are good and load tested fine. Not sure what else could have caused the no start issue. One thought is my charger is no good. Its says charged 100%, maybe its not? I would think that the alternator would have charged it after running for over an hour at cruising speed if...
  18. Dubed

    Dead Batteries

    I will report back after they are load tested. I was just trying to understand if something could have caused it. When I charged them the night before (after sitting all week) the charger said they were at 95% when charge started
  19. Dubed

    Dead Batteries

    They are about 4 years old. They are being tested today. My original thought was a bad battery. But when they were both dead.....?
  20. Dubed

    Dead Batteries

    I pulled a battery from my trolling motor and replaced my starting battery with it. I had zero issues the rest of the day
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