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  1. W

    Temperature Fluctuates - 2015 350 mag mpi ec

    I took the boat out this weekend. I compared the temperature sensor reading (via Vessel View), temperature sender reading (via the dashboard gauge), and the reading from the mechanical temp gauge I just installed. Vessel View and the mechanical gauge were within 5 degrees of each other just as...
  2. W

    Temperature Fluctuates - 2015 350 mag mpi ec

    Does any cold water from the seawater pump ever go through the water distribution assembly and into the water circulation pump via hoses 11 & 12? .....or is that path exclusively for drainage?
  3. W

    Temperature Fluctuates - 2015 350 mag mpi ec

    Ok. Thanks. I'll update the drawing to show the #3 hoses only support flow out of the manifolds for draining purposes (engine off, cooling drainplugs out). I use the dashed, orange-ish-brown arrows for that. You'll have to help me understand your comment about the flow through the thermostat...
  4. W

    Temperature Fluctuates - 2015 350 mag mpi ec

  5. W

    Temperature Fluctuates - 2015 350 mag mpi ec

    I made some assumptions about the flow through the water distribution assembly. If anyone knows for sure what's inside that thing, I'd love to know. Also, if I've stated anything that's incorrect in this picture, please let me know, and I'll update it.
  6. W

    Temperature Fluctuates - 2015 350 mag mpi ec

  7. W

    Temperature Fluctuates - 2015 350 mag mpi ec

    Ok....so I think this comes down to a dashbaord gauge reading a little high and me being overly cautious / paranoid. I took the thermostat housing off again to double check my work and get a better understanding of the flow through the housing. I also read up as much as I could to understand the...
  8. W

    Temperature Fluctuates - 2015 350 mag mpi ec

    Hi. I'm fairly new to the forum. I've done lots of car work in the past and some work on my own boats. I bought my current boat new in 2016. The boat is a 2015 Stingray 225 LR with a 350 mag mpi and a Bravo 3. I mainly boat in brackish water. The boat currently has 275 hours on it. I'd like to...
  9. W

    Starter studs on a mercruiser 140??? Can't get the starter out

    I'm new to iBoats. I was a mechanic for a few years then went on to become an engineer. I've had a few boats over the years and have always done my own work on all my boats. I just bought a 1984 (or 86....something like that) stingray 17' super sport with a mercruiser 140. I call it 'cheap and...
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