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  1. Scott Danforth

    Converting to carburetor from mpi 350 mag

    Agreed, Carb vs EFI both equal in power on a given engine architecture. https://www.motortrend.com/how-to/carburetor-vs-fuel-injection-we-put-both-to-the-test-on-ls-engine/?utm_campaign=trueanthem&utm_medium=social&utm_source=facebook EFI shines with variable valve timing and in high boost...
  2. Scott Danforth

    Water in Yamaha outdrive!

    You may have to order the seal kits direct from Yamaha
  3. Scott Danforth

    Converting to carburetor from mpi 350 mag

    Agreed. NASCAR runs 830 CFM annual discharge Holley's. However their motors are spinning 9000 RPM I'm running a HP830 on my 468 that sees 5500 For a stock 350, 377, or 383, 650-715 CFM would be the carb size recommendation
  4. Scott Danforth

    Performance issue

    Drop your pitch .
  5. Scott Danforth

    Fix gel coat or use keel guard

    Got pics?
  6. Scott Danforth

    Briggs & Stratton Intek 44 cubic inch

    Guess what is on national backorder.....Briggs part number 793338.....
  7. Scott Danforth

    Converting to carburetor from mpi 350 mag

    I run a carb without a choke and only wait about 30 seconds from startup at the dock to backing into the channel and mashing the throttle
  8. Scott Danforth

    Performance issue

    welcome aboard you could be over-proped, could be other factors are you trimming all the way down (in) for the holeshot? does your prop allow the boat to get all the way up to 5000 RPM? have you moved the beer cooler to the bow? have you tried with your trim tabs down slightly?
  9. Scott Danforth

    ECM Swap ? Plug and play ???

    or just get your ECM reflashed
  10. Scott Danforth

    Polyester resin peanut butter

    it will after a few weeks. or if in Florida heat, about 20 minutes
  11. Scott Danforth

    Yamaha to Mercruiser 3.0 engine components swap

    never is
  12. Scott Danforth

    Merc cruiser 5 0 backfire

    because 3 months has past from July to now and you could be getting moisture in your tank from summer humidity or you could have had enough gunk in the fuel system plug up the carb because 3 months has past and you added fresh fuel which could have had high moisture and crud in it which plugged...
  13. Scott Danforth

    Merc cruiser 5 0 backfire

    the rev limiter is set at 5200 or so at what RPM are you getting the backfiring thru the carb? as stated above, most likely a lean sneeze. what were the compression numbers? what is the fuel pressure to the carb/ what were the results of checking the fuel filter contents?
  14. Scott Danforth

    Polyester resin peanut butter

    no, you do not want wax. it fill fully cure the moment you put the tabbing on after.
  15. Scott Danforth

    Yamaha to Mercruiser 3.0 engine components swap

    easiest if you are swapping complete long-tail assemblies unbolt the yamaha drive, pull the motor and remove the yamaha transom shield. remove yamaha wiring and controls Install mercruiser wiring and controls, bolt in the mercruiser transom shield, a mercruiser motor and the mercruiser drive.
  16. Scott Danforth

    1992 Volvo Penta 230 with SPA-1 Overheating

    The drive was originally designed in the early 80s along with the motor
  17. Scott Danforth

    1992 Volvo Penta 230 with SPA-1 Overheating

    remember, overheat is a lack of cooling water flow could be the glycol side, could be the raw water side measure the pump output. if the pump is bad, spend the $150 on a new pump if you ever lost an impeller blade, look for it.
  18. Scott Danforth

    Compression Test Readings

    60 over and an overheat means spending $800 on new blocks
  19. Scott Danforth

    Compression Test Readings

    you have blow-out between cylinders. you lost clamp force along the way. my guess, the heads were off once prior and someone did not torque correctly, or the motor was overheated.
  20. Scott Danforth

    oil leak on 3.0

    yes, even if you so much as turned the mount nuts at all you have to pull the drive and align. you are supposed to check alignment every year.
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