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  1. Scott Danforth

    ECM for 1999 Mercruiser MCM 5.0L EFI / 305 CID

    If you can't set timing correctly, I suggest taking it to a qualified marine mechanic
  2. Scott Danforth

    ECM for 1999 Mercruiser MCM 5.0L EFI / 305 CID

    Only after you follow the manual and properly set timing
  3. Scott Danforth

    New (old) hard top pontoon owner

    The plywood transom is 100x stronger than a chunk of oak. that is why the OEMs used plywood Is the boat and the transom pod rated for more power?
  4. Scott Danforth

    Serial number

    If you bought the kit I linked to, it would have been delivered. However your 10mm double flare adapter would work just fine. you can also heat the end of the tube up and use a body hammer to roll the flare. however that takes a really long time.
  5. Scott Danforth

    ECM for 1999 Mercruiser MCM 5.0L EFI / 305 CID

    First, welcome aboard the fact that your motor is running rules out the ECM. The fact its backfiring means you are running lean or your timing is off. Not going above 3000 RPM could be you are running out of fuel or the motor doesnt know its in gear First, empty the contents of your...
  6. Scott Danforth

    1985 9.8 mercury fuel connections

    As stated, do not buy the cheaper Attwood one. they leak. Moeller appears to be better quality.
  7. Scott Danforth

    1985 9.8 mercury fuel connections

    here, let me google it for you https://www.google.com/search?client=firefox-b-1-d&q=mercury+bayonet+style+fuel+line
  8. Scott Danforth

    PDF Service manual for 4.5L

    the only legal place to get manuals for your Mercruiser are from Mercruiser. copyright laws prevail. http://publications.brunswick.com/ any non-mercruiser site claiming to have manuals is most likely a phishing and scam site.
  9. Scott Danforth

    1985 9.8 mercury fuel connections

    you need a mercury fuel line for the 1070's and 80's with the male and female bayonet connections. do NOT buy an attwood brand. only buy OEM mercury or Moeller
  10. Scott Danforth

    1992 Mercruiser 7.4L Engines (Weird Idle, Rev, & Vaccum)

    This is saying you are running lean or you have a timing issue going to lean toward saying you have a carb issue This could be a stuck valve issue. however hunting from 1000-2000 is usually a fuel system issue. could be a manifold vacuum leak. New quadrajets have not been available for 30...
  11. Scott Danforth

    Washdown Pickup Placement

    most off-shore go-fast fishing boats have a high-speed pickup facing forward, plumbed to a seachest with an overflow line with a check valve to vent excessive pressure
  12. Scott Danforth

    '92 7.4 Carburetor Accelerator Pump Not Working

    if you never do anything other than keep the motor running at idle, you do not need the accelerator pump (assuming you use ether to start it initially). however if you ever want to open the throttle regardless of what the motor is in and pick up load (accelerate, etc) you need a working...
  13. Scott Danforth

    Do you make your own gaskets ?

    the only time I make gaskets is if its a Sunday afternoon and I cant get a gasket to drive to work on Monday or the gasket is NLA. otherwise as dingbat stated, not worth it when the correct gasket is available.
  14. Scott Danforth

    1969 Super Sport 16 Single Console Conversion

    the soft spots in the floor mean the floor is rotten. to replace the floor, everything needs to come out of the boat (large project). and all the flotation foam needs to be pulled and replaced. your proposal should be: pull seats pull consoles and windshields pull the hacked up casting deck...
  15. Scott Danforth

    Air in the tilt/trim system?

    lots of cycling full stroke. you need to get the air from the cylinders to the reservoir.
  16. Scott Danforth

    My boat is being a boat . . .

    My VHF died this year. its on the list to get ordered ASAP
  17. Scott Danforth

    Air in the tilt/trim system?

    welcome aboard yes, air in the cylinders.
  18. Scott Danforth

    Exhaust Bellows 3.0 cobra

    keep in mind like Bondo stated, if the exhaust bellows is bad, the u-joint bellows is also bad. make sure to get a complete bellows kit. While at it, also get an impeller kit (super easy on a cobra)
  19. Scott Danforth

    Raw water pump

    if you have a bravo like you state in your sig, your impeller is belt driven from the front of the motor. check for Bravoitis
  20. Scott Danforth

    15W-40 oil is it multi purpose?

    the diesel motor needs of today are the same as the flat tappet gas motors of 30 years ago i run 15W40 Rotella diesel in half the things that I own with pistons (boat included). the other half gets 0W-20 synthetic
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