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  1. Scott Danforth

    7.4 flame arrestor to KN

    what are you trying to do besides lighten your wallet and add a shiny bit to your engine compartment? your current flame arrestor already flows more air than the motor needs assuming its clean and yes, the vapor tubes get clipped to the air cleaner.
  2. Scott Danforth

    Everything done but low rpm at WOT. Distributor spring?

    what color are the plugs. new isnt a color. white, coffee, or black. if your plugs are white, you are way way too lean. measure the rocker arm movement with a dial indicator. your valves should be moving almost 0.550"
  3. Scott Danforth

    PDF Service manual for 4.5L

    This thread is older than 90 days.
  4. Scott Danforth

    Shifting system

    Of the 3 cables. The lower shift cable is the one that needs adjustment checked often and is the one that usually needs replacement
  5. Scott Danforth

    1973 Starcraft SS 18 I/O

    I would be looking for a 1992 or newer 3.0 myself. Rebuilding a 3.0 costs as much as rebuilding a 5.7
  6. Scott Danforth

    454 Piston problem

    Agree with AD, only way to put new rings in an engine with more than 100 hours is a bore and hone
  7. Scott Danforth

    454 Piston problem

    The pistons are GM truck motor pistons. A year will help identify if it's a Mark IV, Gen V, or Gen VI
  8. Scott Danforth

    Bow eye hook/anchor hook gaps

    There is no standard in either the recreational boat market, or the superyacht market Truth is if you were to 3D scan the hull of 15 boats, all 15 would be different even all pulled out of the same mold They pull the hulls, depending on temp the hull will flare more or less. They glue in the...
  9. Scott Danforth

    Astroglass 1989 full rebuild

    Have to wire them to the Garmin. My 380 was heat cracked (in Fl...go figure)
  10. Scott Danforth

    Astroglass 1989 full rebuild

    just bolted the same Uniden 385 in my boat to replace the 380 that quit after 1.5 years
  11. Scott Danforth

    No Power to Boat

    check battery connections check for power on the red wire at the key switch
  12. Scott Danforth

    Four Winns hull strength

    your kidneys will wrap around your neck and slap you in the face before you have to worry about hull strength.
  13. Scott Danforth

    Dribble of oil at prop, usual suspects checked, now puzzled

    check power steering level. if its low, your PS cooler could be leaking
  14. Scott Danforth

    Double Cup or not, on a pontoon?

    Not sure I would drop down to 11P with where your RPM's are unless you added a blade.
  15. Scott Danforth

    Register Homemade boat in WI

    agreed, avoid Milwaukee and Waukesha Two Rivers is hit-or miss with the staff.
  16. Scott Danforth

    Can’t get on plane

    if there is gunk in the tank, it needs to be mechanically cleaned good idea on removing the Pickup Tube filter
  17. Scott Danforth

    1979 Mercury 70 EL Thunderbolt Kill Switch Install

    there will be a yellow and black wire on the MOB switch. if your MOB switch has two purple wires, then its for an I/O
  18. Scott Danforth

    Prop Question

    what does the tachometer say you are actually getting. Manual says RPM to be 5500-7000 max. what the manual says doesnt mean squat-diddly. its what is the exact prop on your exact boat getting for a WOT RPM while loaded. you use that value. so determine what that real RPM is with your...
  19. Scott Danforth

    Register Homemade boat in WI

    walk into your local DNR office. I found that to be best. The best one I have had luck with is the one Brown County.
  20. Scott Danforth

    Can’t get on plane

    how old is the fuel?
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