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Recent content by John4003

  1. J

    Green gasket?

    Update. I used the silver looking gasket from Barr and so far no leaks. In fact the engine runs better than it has since first installing it two seasons ago. I suspected a leak and that is why I removed it. Lesson learned is, Check these things for flatness and any other issues that might cause...
  2. J

    Green gasket?

    That's the one I'm using.
  3. J

    Green gasket?

    Right and the gasket that came off was not metalic but was silver and if I remember looked like it was coated with Teflon or something.
  4. J

    Green gasket?

    Engine side of course. Just doesn't look like it would seal as good as the silver gaskets.
  5. J

    Green gasket?

    Has anyone used the green gaskets for manifolds? Any good? interface performance gasket cmp-4000
  6. J

    Barr manifold surface finish

    That's the answer I've been looking for!
  7. J

    Barr manifold surface finish

    Which I have done and it looks really clean and smooth. However, laying a straight edge along the length of it. I can see a small amount of light underneath in the middle. This is what has me concerned and wondering if maybe I am being too picky?
  8. J

    Barr manifold surface finish

    I have been working on it and the surface looks good. It's the amount of curvature I see end to end. Just a very small amount of light under the straight edge.
  9. J

    Barr manifold surface finish

    Just took my manifold off my 3.0 and cleaned the gasket and paint off the mounting surface. I used a good quality straight edge to check for flatness and from side to side, it's good but lengthwise, I can see a little light under the straightedge which makes me think it has a small dip in the...
  10. J

    Possible trim pump issue

    Is it normal for the trim pump to keep running after the drive is all the way down? It stops after letting off the switch but if I push the switch it will run. Seems like there should be a limit switch or something.
  11. J

    3.0 idle adjustment

    Hey experts. What is your method of idle speed and mixture adjustment on 2001 3.0? The manual is very vague so this is what I did. I turned the speed screw all the way out and then back in two turns. The mix screw I turned out about 3 turns and then back in until the engine sped up and then...
  12. J

    Manifold gasket

    What is everyone's preferred manifold gasket? My new manifold came with the silver colored type but the old manifold gasket was more of a fiber looking gasket. Don't want ANY leaks!
  13. J

    3.0 carburator gasket

    Does anyone know which carb mounting gasket should be used? Brand new combo header and carb but there are two different gaskets. One is an open hole and the other has a bar in the middle. Going on a Merc 3.0.
  14. J

    Alpha 1 water pump

    So I replaced my Alpha 1 gen II water pump impeller for the first time which was pretty easy but when assembling the unit back together, I forgot to put the little plastic sleeve back on the water pipe. Crap! Is this a necessary part? Doesn't look like it really does anything except maybe help...
  15. J

    New 3.0 in older boat

    Okay I installed a new GM 3.0L in my 2001 Sea Ray 180 and everything is ready to go. It runs but I am a little unsure of where to set the timing. Do I go by the manual for the boat year or should I go by the Engine year?
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