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  1. Scott Danforth

    Water in cylinders after sitting

    If you boat in salt water, you may want to just replace the manifolds Have you verified your SWL to riser dimension
  2. Scott Danforth

    5.7 Vortec Runs Great On Land but Bogs Under Load in Water

    Regarding the 1409 Edelbrock Do not use more than 6.5 PSI fuel pressure. Excessive fuel pressure may cause flooding. If your fuel pressure is too high, install an adjustable pressure regulator, such as Edelbrock #8190.
  3. Scott Danforth

    1986 4.3 Cracked Intake Manifold - please help with recommendations for 4 barrel combo

    Here is the marine Edelbrock intake for vortec heads. https://www.summitracing.com/parts/edl-2519 The non vortec marine version is NLA. The street version (2111) is available. Here is a set of GM 4.3 vortec heads fully assembled https://www.ebay.com/itm/165516093776
  4. Scott Danforth

    Dean's List gets another motor

    unless they deny the claims
  5. Scott Danforth

    Dean's List gets another motor

    cant make money with all their overhead to do it right, so shortcuts are often taken
  6. Scott Danforth

    Mercrusier 350 MAG MPI - RPM issue under a load

    Simple math would say 4+24=28 Not sure why you would set your base timing low at 4 Plus the 350 mag MPI should have a specific timing setup procedure in the Mercruiser manual
  7. Scott Danforth

    Mercrusier 350 MAG MPI - RPM issue under a load

    24 degrees of advance with base timing if 8 degrees is 32 degrees total Or are you only seeing 24 degrees total?
  8. Scott Danforth

    5.7 Vortec Runs Great On Land but Bogs Under Load in Water

    Which Holley fuel pump do you have? The marine ones flow more that you would need with twice the motor. 7-8 psi is on the edge of holding the needle open on the 1409 What is your compression numbers? What do the plugs look like?
  9. Scott Danforth

    2002 Mercruiser 350 Mag MPI showing high temp and engaging guardian system

    Did you service the raw water pump?
  10. Scott Danforth

    Priming fuel system for new engine first start.

    use a hammer and dimple the windage tray where the crank throws are
  11. Scott Danforth

    what is that sensor?

    follow the wire colors. they are standard. Tan is for water temp gauge. dont believe. if you ground it out, your gauge will peg hi
  12. Scott Danforth

    Priming fuel system for new engine first start.

    Had mud daubers fill every drilled hole in my interior.
  13. Scott Danforth

    Power Steering Leaking Into Water?

    Yes
  14. Scott Danforth

    Mercury 3.0 EST no spark

    Voltage drop is a bad connection somewhere between battery to ignition switch to kill switch to coil
  15. Scott Danforth

    what is that sensor?

    Temp gauge. It's a tan wire
  16. Scott Danforth

    How Much Voltage Drop Is Too Much?

    Should just need to clean connections vs rewire
  17. Scott Danforth

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Did you name them Fred and Ethel? Or Don Ameche and Frances Langford.... :)
  18. Scott Danforth

    2004 Merc 2 stroke 90HP seized after rebuild

    Should be 24:1 for breakin
  19. Scott Danforth

    1995 Stingray 4.3L Mercruiser No Start

    That is why the filters get changed annually
  20. Scott Danforth

    Power/towing question

    how old is the fuel? when was the last time the fuel filter was replaced and it contents inspected? carb or fuel injection? what is your fuel pressure? what is your compression?
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