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  1. Scott Danforth

    Testing Gas Flow on 82' Wellcraft Sterndrive

    The distributor was never used in a car As the Mercruiser 3.7 was dreamed up at mercury by taking the pistons and head from a Ford 460 and making a custom block and crank with a custom cam. It also is completely different than the 3.0 Mercruiser DID have them custom made. The Mercruiser...
  2. Scott Danforth

    Help me identify what engine I have in my new boat

    conversion rate isnt it using todays conversion. however added customs on top of the conversion would. maybe look for a damaged boat from a towing accident
  3. Scott Danforth

    Just thought I'd share a nice photo.

    Not sure there is one. im currently using a thixotropic extreme pressure gearbox lubricant. the one I selected 3 years ago is still the best for the application based on testing.
  4. Scott Danforth

    Just thought I'd share a nice photo.

    failed heat treatment on the worm allowed the teeth to deform and wipe out the teeth on the wheel. Additionally, centrifugal cast C91700 was spec'd and the vendor used sand-cast C91700 which is about 60% the strength. so the worm wheel failed sooner than it should.
  5. Scott Danforth

    Help me identify what engine I have in my new boat

    its weird that Amazon.com has $571 and Amazon.CA has 877 maybe buy it from Summit Racing and have shipped to your facility and pay the $50 customs charge.
  6. Scott Danforth

    Testing Gas Flow on 82' Wellcraft Sterndrive

    they do NOT exist. you can get a custom one made for the 3.7 liter by Daves Small body HEI, however they will not be marine compliant. they will also be extremely expensive. Pertronix makes a point conversion for the stock delco distributor. if you have to rebuild your distributor, there...
  7. Scott Danforth

    4.3 milk maker

    drain the oil mix drain the cooling water jacket pressurize the cooling water jacket to 15 psi. it should hold forever unless the block is cracked if it doesnt hold pressure, pull the drive off and pull the motor out. get motor on the stand and tear it down.
  8. Scott Danforth

    4.3 milk maker

    The 4.3 will crack internally, not externally as stated by Scott in post #4 The foam was coming out of the valve cover breathers.......because your motor is now filled with water that mixed with oil You don't state a year, however if the exhaust manifolds are the batwings, they could have...
  9. Scott Danforth

    Just thought I'd share a nice photo.

    Catastrophic gear set failure...... Prototype testing for M/Y 2026 launch.
  10. Scott Danforth

    Just thought I'd share a nice photo.

    maybe wash your feet?....just sayin
  11. Scott Danforth

    3.0 mercruiser dieseling

    725 RPM is too high have you checked timing? if all is good with timing after you get the idle within spec, let it idle a bit prior to shutting it off. if you have to pick up a skiier, key off while in gear
  12. Scott Danforth

    4.3 milk maker

    how was this motor winterized? because my guess is that it froze and busted the block and heads over winter
  13. Scott Danforth

    Volvo Penta 4.3 GL No Power to Fuel Pump

    you can use a coffee can with a nipple soldered to the bottom and gravity feed the carb to get you to the boat ramp. just need the fuel source higher than the carb. alternatively you can use an outboard tank, and a squeeze bulb or you can hotwire the pump directly its not rocket science
  14. Scott Danforth

    Builder question about water displacement

    I dont think you have a problem. the well is a bit low on your boat. it should have been a bit higher for a slightly longer motor however your boat is more than a few decades old. move some weight forward
  15. Scott Danforth

    Just thought I'd share a nice photo.

    they explode if you hit them square with the tire..... they also run out in front of your tire
  16. Scott Danforth

    Sharing a Pre-Startup Check List > What is yours?

    check tide charts check weather remove cover hook up hose run motor for ~5 minutes while I look over the trailer install garboard plug pull boat from yard to street run for fuel if it needs it load coolers load towels drive to ramp while in-line, remove transom straps. pull onto ramp apron back...
  17. Scott Danforth

    Volvo Penta 4.3 GL No Power to Fuel Pump

    Holy melted wiring batman
  18. Scott Danforth

    riser bolts too long

    I would use blue loctite or dip them in permatex #3 vs red
  19. Scott Danforth

    riser bolts too long

    Im with Bondo on this one, use a razor wheel and zip off the end..... dress them on the grinder
  20. Scott Danforth

    Chain worth it?

    if you are on Lake Michigan near deaths door, as little as a 5 degree change in wind can change the seas from a light chop to 6 foot rollers due to the doppler effect with little to no change in wind speed.
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