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  1. Scott Danforth

    Mercruiser 5.7

    what troubleshooting have you done? randomly replacing parts without troubleshooting may or may not fix the problem what lead you to replace the 90 amp circuit breaker, starter and coil? do you have compression on all cylinders? do you have spark? do you have fuel? see post #21 for the...
  2. Scott Danforth

    boat foam?

    foam takes years to decades to break down due to freezing and thawing cycles if you prevent water from getting under the deck sole, the foam will never be wet.
  3. Scott Danforth

    5.7 Switched 12v

    the purple wire is a switched 12 volt. that is the ignition. you may want to understand the ABYC wire colors https://forums.iboats.com/threads/generic-boat-wiring-information-updated-verified.726970/ good luck with your sniper.
  4. Scott Danforth

    Mercruiser 165 6cyl inline dies when boat is in the water

    you have a mechanical fuel pump. the system wont care if the motor is in the water or not. what does care is the back pressure from the wet exhaust. you pumping the throttle is simply bringing the RPM's up and having the exhaust gas flow rate increase what are the compression numbers on the...
  5. Scott Danforth

    Mercruiser dies after getting on temp

    did you get your wiring straightened out? did you get the points adjusted correctly and the dwell set correctly? what did you set dwell and timing to?
  6. Scott Danforth

    Keep blowing my starter solenoid up.

    but did you clean the terminals? looking at the picture of the solenoid, the wiring needs some TLC
  7. Scott Danforth

    Volvo aq270T gimbal bearing

    There is no gimbal bearing in the AQ drive There are bearings in the PDS Here is a link to me changing a 290 BDS shaft and bearings https://forums.iboats.com/threads/pds-shaft-issues.687012/ However your PDS may only have one bearing. Check the factory service manual
  8. Scott Danforth

    Keep blowing my starter solenoid up.

    You have that backwards. Higher voltage requires less current for a given power load.
  9. Scott Danforth

    looking at a 1990 thompson 260 fisherman

    Then get a FLIR camera and a moisture meter
  10. Scott Danforth

    VP 2007 3L 135HP engine oil options

    No, not really It is one of the very few cheap high zinc oils. You need zinc for your flat tappet motor
  11. Scott Danforth

    looking at a 1990 thompson 260 fisherman

    the boat is 36 years old. consider it has rot until proven otherwise. you have to drill test to determine rot in your transom and stringers
  12. Scott Danforth

    Keep blowing my starter solenoid up.

    if the purple wire reference to the alternator sense pin calls for more juice, that alternator will try to make that sense pin voltage go above 13.8. as stated, depends on the battery and condition of the wiring.
  13. Scott Danforth

    Need different prop for pulling

    AKI vs RON vs MON The US uses the AKI or Anti-Knock Index which is RON + MON / 2 Your motor is designed to run on 87 octane pump swill
  14. Scott Danforth

    More speed from 9.9 merc

    Go down in pitch That boat is probably rated at 50-60hp. So less than 40hp will be under performing
  15. Scott Danforth

    Merc Alpha One trim/tilt Q (feeling like a newby)

    Copyright laws would prevent anyone from posting a scanned version
  16. Scott Danforth

    Need different prop for pulling

    You are being your own worst enemy here.....Mash that throttle on the holeshot. It's not about speed, it's about getting that large mass moving The 5.0 is still too small for the boat
  17. Scott Danforth

    2014 GMC Sierra AC

    Closing this out. Amazon brought new hoses and I swapped my service connections Checked pressures against the chart Air out the vents just below 60F with a 91F ambient
  18. Scott Danforth

    Rear bimini 94' Sun Tracker party barge 30

    White Water Marine (company that builds tracker boats) never had patterns. they bought the canvas from Dowco and most recently Great Lakes Boat Top you can go on the Dowco website and get canvas. https://www.dowcomarine.com/oem-pontoon-fishing-boat-covers
  19. Scott Danforth

    A question for Mercury outboard techs

    Muc, see your PM's...... going with Right Hand not communicating with left hand
  20. Scott Danforth

    China propeller

    some of the prop manufacturers use off-shore sources. without doing digging, it may be as good as other props. or it may be a really bad knock-off.
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