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  1. MichaelBC

    No power with a 4.3LX

    With the signal of the sensor the ECU knows the rpm and adjust the timing. Just device the impulses by 6. For a Thunderbolt IV there nothing to be set for timing adjustment. Just set it to 8° advance and that's it. With a Thunderbolt V there is one cable that has to be connected to ground for...
  2. MichaelBC

    Missing timing tab? Merc 4.3 2005

    Hello, on your second picture I can see the timing mark on the chain cover. On your balancer there is also a gap that indicates 0°. So what I did is to measure the diameter of the balancer and calculate the way for 1°. With this value I printed a sticker for my Mercruiser on my label printer...
  3. MichaelBC

    4.3 belt alignment issues

    OK, now I understand what you mean by proud. My pulley was perfectly aligned when the shaft was 6 milimeters inside the pulley. So it does not stick out,
  4. MichaelBC

    4.3 belt alignment issues

    Hello, I do not know waht you mean by proud of the pulley. Maybe my english is not good enough. But I can show you how I did install my new pulley on my new pump. I had this installation an removal tool. It worked fine to remove the old pulley from the old pump to get the bracket out...
  5. MichaelBC

    4.3 belt alignment issues

    The pulley of the steering pump is just pressed on the shaft. Maybe you should set it a little deeper. This is how I adjusted mine.
  6. MichaelBC

    Engine rpm is not stable below 2000 rpm

    Hello Rick, I changed my carb to your setup last night. As I am on holiday in Croatia and there are not parts available here I did order in Germany and had them shipped to my friend and he brought them for me yesterday. I had to take what I could get quickly and so I bought a kit and the...
  7. MichaelBC

    Engine rpm is not stable below 2000 rpm

    Thank you very much. I think this will help me.
  8. MichaelBC

    Engine rpm is not stable below 2000 rpm

    Would the 1488 kit include the jets and needles that I need to make it more rich ?
  9. MichaelBC

    Engine rpm is not stable below 2000 rpm

    Hallo, thank you all for your answers. If I google for Edelbrock 1481 then I just find a throttle lever kit which seems to be somehow wrong. 1485 shows springs and rods for the 4.3 liter engine. So if this is to lean, could you recommend me the kit number to order ? Regards Michael
  10. MichaelBC

    Engine rpm is not stable below 2000 rpm

    With configured out of the box I meant that the needles and jets have been changed for the 4.3 already. Of course I did set the idle speed to 650 rpm and the timing to 10° advance. Both with the ECU set to adjustment mode. So all adjustment that I can do on the carb are the idle mixture...
  11. MichaelBC

    Engine rpm is not stable below 2000 rpm

    Sorry, I forgot to mention that there is also a new Edelbrock intake manifold on the new engine. That should match the carb shape. Thank you for your hint. I think I did plug all unused openings in the manifold. But I will try to get some break cleaner tomorrow and spray the outside of the...
  12. MichaelBC

    Engine rpm is not stable below 2000 rpm

    Hallo, yesterday I took my boat with the new engine out on the mediteranian see for the first time. The engine starts immediately when I turn the key and runs nicely. I did set the timing and idle speed in setup mode of the ECU. When I accelarate a little and reach about 1300 rpm the...
  13. MichaelBC

    Water inlets at dry joint ellbows

    Hello Chris, thank you for your explanation. That makes perfect sense and so I will stay with the lower opening. Regards Michael
  14. MichaelBC

    Water inlets at dry joint ellbows

    Hello, my dry joint ellbows have two water inlets. So in one I will put in the connector for the water hose of the closed cooling to let the seawater out and the other one is pluged. So as you can see in the picture it would make my setup a little easier to use the upper hole insted of where...
  15. MichaelBC

    New 01 Bayliner 4.3 MC...have a few questions

    There should be a trim sender on your stern drive that is sending the signal to the gauge. On the other side there is a trim switch that prevents the sterndrive from coming up to high because this is not good when the engine is running. So it should automatically stop before the prop comes out...
  16. MichaelBC

    1989 vs 2008 4.3 differences

    I do not know if this is called a bullet plug. At my engine the main plug that connects the engine wiring harness to the rest of the boat electris is fixed to the engine with a bracket on rear starboard side. The other bracket holds the oil reservoir for the stern drive. The breaker is...
  17. MichaelBC

    1989 vs 2008 4.3 differences

    Today I found another thing that can not be swapped. The brackets of the electrical connector and the oil monitor were fixed with the bolts of the intake manifold. The distance of the holes does not match the Vortec bolts distance. So will think of a different place where to mount this. Both do...
  18. MichaelBC

    1989 vs 2008 4.3 differences

    As it is easier to do as long as the engine is outside the boat, I decided to cut the hose today. I found the mark hard to see already on the old dipstick and so I cut some gaps into it which made it much easier for me to see the level area. So I will just do that on the new one too. I...
  19. MichaelBC

    1989 vs 2008 4.3 differences

    Well, maybe my wording was wrong. The old engine had this shitty blue plastic plugs on both sides like you can see here. I call them shitty because on two of them the top just fell off already and cooling water was running into the bilge. If they were solid instead of hollow inside then the...
  20. MichaelBC

    1989 vs 2008 4.3 differences

    There are three reasons why I do not care too much about the thread on the top to suck oil out. - I do not own such a pump - The dipstick tube is combined with an oil drain hose that can be pushed through the bilge hole - My oil pump has a thin long hose than can be pushed through the dipstick...
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