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  1. Scott Danforth

    Johnson Seahorse 7.5 outboard 1956 - what is it worth today?

    $100 as wall art If it's running perfect.....$300-$400 to that one guy, $200-$300 to everyone else 24:1 motor, pressure tank, most likely needing coils and crank seal I would list it on AOMCI
  2. Scott Danforth

    Older 140 Suzuki 2 stroke no power

    Could also be a low oil shutdown
  3. Scott Danforth

    7.4 starter choice

    A PMGR starter Sould be in-stock at one of the Mercruiser warehouses as the starter is same for 4.3, 5.0, 5.7, 6.2, 7.4, 8.1, 8.2 Some people use DB Electric.
  4. Scott Danforth

    Older 140 Suzuki 2 stroke no power

    First, welcome aboard What trouble shooting steps have been done? From your description we can't answer, only guess
  5. Scott Danforth

    Volvo penta 4.3 2006 fuel rail injector socket detached

    The fuel rail is a GM part. However a good tig welder can weld the cup back on
  6. Scott Danforth

    Merc 5.0 MPI drain plug

    Nope, just crap plastic that is prematurely aged by engine heat That's why I recommend the aftermarket stainless ones, or a 3/4" long 1/2-13 bolt with a washer and O-ring in a pinch
  7. Scott Danforth

    2007 Merc 5.0 TKS stalled at speed, had to be towed

    It's not a common failure point
  8. Scott Danforth

    5.7 vortec pertronix and Holley big carbs timing

    Need air horn numbers And with motors being 2015, do a compression test
  9. Scott Danforth

    1987 Power Play XLT-185 - floors, stringers, and upholstery

    Summit Racing has Carter marine pumps for under $50 And yes you need a marine pump
  10. Scott Danforth

    My boat is being a boat . . .

    It is most likely the same Bravo water pressure sensor that has been iffy for more than a decade
  11. Scott Danforth

    Merc 5.0 MPI drain plug

    I would get the stainless plugs from Hardin/ CP
  12. Scott Danforth

    My boat is being a boat . . .

    Sensor driven water pressure? Or mechanical gauge? If sensor driven, going with the sensor is going south
  13. Scott Danforth

    5.7 vortec pertronix and Holley big carbs timing

    If they were both new motors, they will be 9.4:1 CR with Something about this for a cam 202 duration intake 214 duration exhaust 395" lift intake 404" lift exhaust 112 lobe separation. 600 CFM carb will be fine. However need air horn information Is it a vac secondary or a mechanical...
  14. Scott Danforth

    First start of season, how long for water from impeller?

    You ran the hose to the motor and not to the muffs for the initial start? If so, you toasted the impeller Never ever ever ever run an alpha 1 without water flowing thru the muffs at full pressure
  15. Scott Danforth

    5.7 vortec pertronix and Holley big carbs timing

    @QBhoy , princess is the UK variant of Viking Know a few folks that worked at both companies However without knowing what motor and what carb, we can only give general suggestions
  16. Scott Danforth

    1997 Mercruiser 5.7 EFI blown head gasket

    Non vortec motors went away September of 1995 when the vortec motors came out Any non-vortec motor after September 1995 is a left-over old stock motor stored in a warehouse and used later Do you have 12 intake bolts (non-vortec) or 8 intake bolts (vortec)
  17. Scott Danforth

    1997 Mercruiser 5.7 EFI blown head gasket

    Get felpro marine head gaskets Find a different machine shop. Should be a 3-day turn around. New heads from GM are only $850 a set
  18. Scott Danforth

    5.7 vortec pertronix and Holley big carbs timing

    Read the thread Identify your motor. Very specifically identify the combustion mix of bore, stroke, piston style, heads, rocker ratio, cam duration, etc Identify your carb. Specifically the air horn numbers and any mods done Report it all back here
  19. Scott Danforth

    Second mortgage for a carb?

    Since the OP isnt digging and providing information. most likely its a Holley 75028 / R80316 (500 cfm) or R80320 (300 cfm) OMC lists Y42-2CC as the carb for the 1994-1998 OMC's 302DCMMDA, 302DGMMDA (I am guessing here, as the earlier OMC's had rochester 2-J's Carburetor Numbers: R80316...
  20. Scott Danforth

    Second mortgage for a carb?

    Jimbo is discussing a failure. Automotive carbs dump excessive fuel outside the carb where it runs off the motor and onto the road. In a boat with a bilge, that is a bomb and will blow up
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