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  1. M

    Temperature gauge issues? Can't get a temp reading?

    Ok, thanks will try these ideas.
  2. M

    Temperature gauge issues? Can't get a temp reading?

    Hi all. So since this post, I've started having issues with my temperature gauge again. I think it's still a ground issue. It sits on 0 all the time. I've taken the thermostat off, sanded down both the housing and engine side till it's shiny and reinstalled but no luck. With the engine running...
  3. M

    Starboard exhaust manifold warmer and inspecting

    So, just circling back after some experimenting. Thanks all for the input. Seems like you are all on the money. In the water, it's generally fine. On the trailer, our road slopes so that the starboard side is higher, as a result the port gets most of the water and the starboard manifold get...
  4. M

    Starboard exhaust manifold warmer and inspecting

    Thanks. This us great
  5. M

    Starboard exhaust manifold warmer and inspecting

    Thanks Lou. Really helpful.
  6. M

    Starboard exhaust manifold warmer and inspecting

    Thanks Chris. That's great. Works now. BTW, as Lou mentioned earlier, is it possible to replace manifolds and elbows from wet joint to dry joint?
  7. M

    Starboard exhaust manifold warmer and inspecting

    Thanks. I actually read this post a little while ago. The pictures aren't displaying when I look at them (like another member mentioned). I use Chrome and checked my settings, and the pictures aren't blocked. Same when i try using Edge. Are they still displaying when you look at them? I'd...
  8. M

    Starboard exhaust manifold warmer and inspecting

    Ok, thanks all. Will do. So, when they talk about inspecting the manifolds/elbows/risers every couple of years and replacing every 5-7 (I'm exclusively using in salt), is that inspection something that I should be doing, given its been a couple of years. Or is it inspecting every 5 years, and...
  9. M

    Starboard exhaust manifold warmer and inspecting

    Thanks. Haven't had much time lately but this is a pic of my manifolds. From what I can see they look like "wet joint". Is that right? So I guess they should be taken off for an inspection as its been about 2.5 yrs since being installed?
  10. M

    Starboard exhaust manifold warmer and inspecting

    Thanks Scott and Lou. I'll try on the water to see if a difference before I pull off. Assuming that the system can't be reverse flushed then to unblock if there is a blockage? Dry joint vs wet joint: not sure what I have. Is it possible to tell from looking at them while in the boat? I read...
  11. M

    Starboard exhaust manifold warmer and inspecting

    Maxum 1800 SR with 1999 mercruiser 4.3L V6 with Alpha One, gen 2 Engine #OL 323311 Drive#OL140489 Salt water boat on trailer. Flush and wash after every use with salt away. Manifolds and risers were replaced in 2019 about 100 hra ago, new impellor 6mths ago, new t-stat. In the past few months...
  12. M

    Is my fuel pump dead?

    Hey, like Scott06 said, down near the oil filter. Port side on my engine. Here is a picture of the one I replaced. Might help you locate it (you can see it was pretty rusty). The oil pressure switch is the one with two wires. If you join those wires, it bypasses the switch.
  13. M

    Is my fuel pump dead?

    I had the same problem with my 1999 4.3L, carby version with electric fuel pump. Not sure what year yours is. On mine it was the oil pressure switch. Could be the same thing. Apparently the starter motor runs the electric fuel pump while cranking and gives enough fuel to start and run for a...
  14. M

    What is this in my drive oil reservoir

    I thought i may need to do that (pull the drive) from other stuff I was reading. I haven't done it before. When you pull the drive off, I cant work out if there is a basic list of things that are replaceable/consumables? Gaskets or seals or the like?Is there somewhere you can point me? I...
  15. M

    What is this in my drive oil reservoir

    Thanks. Ill try that.
  16. M

    What is this in my drive oil reservoir

    Maxum 1800 SR with 1999 mercruiser 4.3L V6 with Alpha One, gen 2 (i think) Engine #OL 323311 Drive#OL140489 I was doing in the engine bay today and went to top up drive fluid but noticed this milky sludge at the bottom of the reservoir. I hadn't noticed previously. It was changed about 6...
  17. M

    Rebuilt Mercruiser 140/3.0 doesn’t have enough power to plane

    Thats cool. Love to see that trick Scott (or should we call you MacGyver). Got a video?
  18. M

    Acceleration Issues. Hesitation and bogging down after idle.

    I've taken it out on the water and runs much better. Smooth acceleration and runs as it should. Think that was the issue. Worth looking at that Vacuum Piston if having the same issue. The only issue I'm having is when it is cold and hasn't been started for a few days, I have to start with a...
  19. M

    140 or 160 thermostat. Does 20 degrees make a difference?

    I just put a 160F on my 1999 4.3L (was the part to use on the specs) and had the same query only becuaseI read it on a forum I came across. I run only in salt water, but figured since I flush it after each use, it probably wasn't a big deal and would be better for a slightly warmer engine...
  20. M

    Temperature gauge issues? Can't get a temp reading?

    Just updating. Replaced the thermostat today with new gaskets (with the brass lugs) and the spacer per the parts diagram. Cleaned it back to bare metal. At first I still wasn't getting a reading but after a few minutes t-stat must have opened and bingo, got a temperature reading. Eventually...
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