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  1. Scott Danforth

    Did I over prop?

    Actually 40 years. The cobra drive was supposed to come out in 1983, bit was pushed back to 1984 (model year 1985) Most of the stringer parts are NLA
  2. Scott Danforth

    Info needed on LARGE Boats / Research Vessels (100ft+)

    My guess, start at 10-15 million for a vessel that is seaworthy but needs work
  3. Scott Danforth

    Did I over prop?

    You have that backwards. Every 1" of pitch you go up, your RPM goes down 200. Even with the correct 2:1 drive you don't have enough motor to spin the 21p prop However with a 1.65:1 drive you need about a 9-13 pitch which they do not make (smallest is 15p) So you need to get the correct...
  4. Scott Danforth

    2005 350 Mag dropping fuel pressure under load

    If your voltage feed to the ECM drops below 9volts yes. So find out where the bad connections are
  5. Scott Danforth

    Does anyone know the year ?

    Look up the serial number
  6. Scott Danforth

    4.3 cranks idles but dies.

    Did you test it before ordering parts?
  7. Scott Danforth

    XR 4 Hydrofoil

    No. It will lighten your wallet and put holes in your drive
  8. Scott Danforth

    2005 350 Mag dropping fuel pressure under load

    It's not the ECM. Check your wiring connections everywhere. Start at the battery and work your way to the helm cleaning every connection
  9. Scott Danforth

    93 vp aq570 with 280 drive hydrolocked??

    Either your gauge is way off or you have water or oil in top the pistons Plug the lines going to the exhaust manifolds to pressure test the block and heads You won't find oil in the water, you will find water in the oil with a cracked block
  10. Scott Danforth

    Lightweight small outboard for remote steering

    1985 and older Merc 9.8 can be found with electric start. 65# short shaft manual start. About 75# for long shaft electric start Finding 2 good ones and the controls will be difficult
  11. Scott Danforth

    VP 280: exhaust water out helmet area

    Depends. Idle relief ports are at bottom of Y-pipe
  12. Scott Danforth

    OMC cobra 5.0 efi surging in idle

    Read the manual
  13. Scott Danforth

    axle repair sleeve question

    Uhh.... Read page 33. You only have to heat them to about 200F (96C). You are correct, don't heat them above 355F (180C)
  14. Scott Danforth

    1988 Bayliner Capri with a 2.3L OMC Ford cobra

    Manual says SAE 30 for the tilt and trim You have to know your tank dimensions to have them programmed https://www.ssi-sensors.com/level-sensors
  15. Scott Danforth

    VP 280: exhaust water out helmet area

    You sure you are not seeing bubbling up from the idle relief ports? Or exhaust bellows are not on correctly Unless your bilge is full of water, no way for water to get to the steering fork to exit that way
  16. Scott Danforth

    OMC cobra 5.0 efi surging in idle

    It's in the factory service manual https://outboardbooks.com/
  17. Scott Danforth

    kicker on boat or kicker on dingy?

    Buddy has a 2.5hp motor on his dinghy for his 37' sail boat. Came back a few times with the sailboat being towed by the dinghy
  18. Scott Danforth

    Low Compression, Low $ Advice

    If running ring free for a few weeks doesn't help, start saving for a power head
  19. Scott Danforth

    OMC cobra 5.0 efi surging in idle

    Test your IAC
  20. Scott Danforth

    Engine Swap Over - First Oil Selection

    Rotella T4 is dinosaur juice T5 is dino-syn mix T6 is synthetic (usually distilled from natural gas )
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