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  1. Scott06

    Air Fuel Ratio Carb Tuning

    Yes it goes through a heat up mode. It is a standard bosch wideband 4 wire sensor. The plate to stab it in goes between manifold and elbow. Innovate only recommends using it for tuning not constant placement as even though it is 'dry' there there the wet exhaust will shorten sensor life. Kit...
  2. Scott06

    Boat wakes

    Well said only thing to add is think about how you want to use it and cockpit layout becomes important. With two daughters and their friends the sun pad and swim platform cant be big enough .... and for me the beer cooler big enough. Most boats today have a cooler under the seat mine is in the...
  3. Scott06

    Air Fuel Ratio Carb Tuning

    Ok so after a year of dialing the carbs on my GTO I'm going to move my AFR meter set up to my boat. Was hoping to get experience from folks regarding best AFR for marine applications. Boat is a '04 Sea Ray 200 sport - 21 ft Bowrider,3500 # dry weight, large lake use engine is a stock 5.0 ( I...
  4. Scott06

    4.3 V6 leaks wet oil sump

    Don't rule out spillage when topping the oil ....mine runs down the valve cover to back of engine and ends up around oil filter
  5. Scott06

    4.3 V6 leaks wet oil sump

    Read Chris thread he went through a bunch of issues with timing cover and oil pan …
  6. Scott06

    Fuel pressure

    Try using google a little https://documents.holley.com/199r7923-2rev2.pdf page 5 has fuel pressure. Also has other basic tuning parameters
  7. Scott06

    Boat wakes

    True inboard has prop below the hull takes up more water, I/O and OB can trim up
  8. Scott06

    Boat wakes

    I personally love I/Os vs OB for the clean swim platform and sun pad. Some I/Os can bee really good for the intermediate skier my buddys Glastron 185/4.3 pops up on plane and has very little wake compared to my bigger sea ray 200. SO when we ski we take him boat, tubing and boarding we take my...
  9. Scott06

    Hydrofoil/Whale Tail Good or Bad

    That is exactly what I saw on my boat with/without the foil. I would keep an eye for stress cracks. Your MC1 cavitation plate isnt't any stronger than the one on my alpha one that cracked at the holes. I never thought about it until after my plate cracked off..
  10. Scott06

    Prop?

    Michigan Wheel makes a Vortex 4 blade AL that is very similar to the Alpha 4. I've run several of them over the years , just bought one for my new boat because the water level in low this year. They come in even pitches so If you had a 21" 3 blade black max I would run a 20" Vortex 4 blade...
  11. Scott06

    Fuel pressure

    He forgot to include he is running a Holley DP, while these factory settings are likely ok Eric u may want to consult with Holley as to the fuel Pressure the carb is intended to work with
  12. Scott06

    Best ratio for 4.3MPI swap into 20ft Caribbean

    Agree with this. When i swapped engines 4.3=>5.0, i kept the 1.81 drive went from a 19” to 21” pitch works perfectly
  13. Scott06

    Maintenance intervals

    Dont worry about the metal clip, mine rusted away completely- you can put a zip tie on it. What I cant see much of is the driveshaft bellows. I just changed mine (2004 lift kept fresh water boat) they started to get abrasions by where it contacts the hinge pins and gimbal ring. The old ones were...
  14. Scott06

    Prop diameter effect and planing trouble

    Yes heavier load go down in pitch
  15. Scott06

    4.3 liter, the DC-10 of I/Os...

    And yet this compromise has performed very well for many folks in the typical <21 ft bowrider application for years. Works well for its intended purpose but certainly not a performance engine
  16. Scott06

    Hard starting

    Quicksilver is a parallel line same parts essentially same part numbers, but allows them to be sold outside the mercury dealer network. They are oem parts
  17. Scott06

    Swap from 3 Blade prop 19P to 4 blade prop

    I think it depends on the 4B prop. The Nemesis is not that big bladed prop and doesn't have too much bite so you may not loose too many rpm. Either way you want prop pitch to be such that you can get to the upper part of the WOT RPM range. I have run several 4 blade props - 21" Vensura, 21"...
  18. Scott06

    Hydrofoil/Whale Tail Good or Bad

    JB weld and merc phantom black rattle can ...
  19. Scott06

    Hard starting

    400 is the oem 50 is aftermarket junk cross referencing the OEM part number Or just buy from mercruiser parts .com or marine engine vs amazon
  20. Scott06

    noise coming from gimbal/coupler area after taking on water

    Yep my thoughts exactly and then sit in water
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