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  1. Scott06

    4.3 No Power and No Ignition Advance

    Not only proper cleaning of carb with quality rebuild kit but also make sure fuel system is clean antisiphon valve is working etc. i have found an inexpensive harbor freight ultrasonic cleaner improved my success rebuilding carbs. Pretty amazing what it gets out of a relatively clean looking...
  2. Scott06

    5.0 carb on 4.3

    Mikes is very good and probably can get you the correct jets for a qjet but Cliffs is the guy for q jets- would think he can tell you what jets and step up rods to use for a 4.3 https://cliffshighperformance.com/
  3. Scott06

    Merccarb 2 barrel rebuild

    When I replaced my float I basically eyeballed where it would be on the float when switching to brass vs the dots. If I recall the seam on it is roughly parallel to the lid. You may want to consider getting a ultrasonic cleaner from Harbor Freight- using one has improved my carb rebuild...
  4. Scott06

    350 mpi rebuild questions

    then option 2 your shop prefers with this gasket will get you to the factory quench https://www.summitracing.com/parts/mah-5776?rrec=true I know every one wets their pants over the correct .035 quench but the OEM quench will work just fine for what you are doing
  5. Scott06

    2002 5,7 Mercruiser exhaust manifold keeps cracking - 5 times this summer

    No grinder and cutoff wheel? could do it with a sledge hammer/BFH I think just to see wall thickness is not driving this. Drink a few beers then get the BFH going....
  6. Scott06

    Water in Oil

    He pressure tested it so gasket or rot should have shown up then
  7. Scott06

    Water in Oil

    You could try a 160 stat in it if you dont have too much scale in the water. My old 3.0 used a 140 stat, current boat (2004 5.0) came with a 160 stat, no issues with scale
  8. Scott06

    350 mpi rebuild questions

    What is quench with stock set up? I know .035 is ideal quench but don’t what it is from factory. option 2 if thinner head gasket for better quench but again don’t know what stock is
  9. Scott06

    opinions....

    Then that is big red flag as other have mentioned..
  10. Scott06

    Boat Lift Question

    Canteleve lift only has cable pulling up the front
  11. Scott06

    opinions....

    Can t tell if that is caulking or if that is the FAO they are supposed to leave between the outdrive and bottom paint
  12. Scott06

    Mercruiser 5.0 misfire and stalling NEED HELP

    Did you clean the carb or just put the needle and seat back in? If under load is power valve and plunger moving ok? Float level set correctly , clean the carb in an ultrasonic cleaner and rebuild. Have you checked under load with a timing light that it isnt missing?
  13. Scott06

    Water in Oil

    Does the engine get up to temp or run cool? If you dont get it good an hot regularly you can get milk in oil. People who let it idle at the slip to run it can get this... SO looks like you check manifold for leaks, pressure tested the cooling system and verified water is getting into PS system...
  14. Scott06

    Mercruiser 5.0 misfire and stalling NEED HELP

    I would rebuild the one you have with a quality rebuild kit like like from Mike Carb parts. If it is flooding the needle and seat/float are not working or you have too much fuel pressure
  15. Scott06

    Mercruiser 3.0 cranks but wont start

    two good video explaining how points work. Take note of the spark strength that’s how it should be
  16. Scott06

    Sn lookup help

    3.0 has a dampener on the front of it where a 2.5 does not
  17. Scott06

    MerCruiser 5.7 inboard gas engines not used in years – what to do

    Winterized is the point he was making. If it wasn’t properly winterized engines are scrap if in colder climate Is that the boat u did the transom or engine mount stringer on ? Or am I mixing up posts
  18. Scott06

    Affordable fuel injection intriguing

    Wonder if mercruiser used the same TBI for their EFI engines ? If so then they would be marine approved
  19. Scott06

    Affordable fuel injection intriguing

    Even better if ther are oem quality
  20. Scott06

    4.3 No Power and No Ignition Advance

    Yes ignition module needs replacement. Most of these TBolt ones are no longer available look for used on ebay or take out whole system and put a delco est in for sure this is the lack of power issue without advance you can’t rev faster
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