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  1. Scott Danforth

    Help me identify what engine I have in my new boat

    Volvo Penta put 715CFM carbs on stock block 350's from 1987-1994. the AVS 2 along with the webber and the 1409 all are available as 650 CFM or 800CFM. since they have the secondary flap they only flow what the engine can draw.
  2. Scott Danforth

    Help me identify what engine I have in my new boat

    the current carb sounds like the idle circuit is plugged and you are only running off the main jets
  3. Scott Danforth

    Testing Gas Flow on 82' Wellcraft Sterndrive

    correct, you can not make a 3.0 distributor fit a 3.7 short of a machine shop and custom make one. the 3.7 liter does not have an electronic distributor anywhere. the only thing that exists is the pertronix point replacment trigger, however the distributor still has the mechanical advance...
  4. Scott Danforth

    Mercruiser Service Manuel 15

    service manuals are copyrighted. so you can buy new manuals from Brunswick, or you can buy used manual from ebay, etc. https://publications.brunswick.com/Default.asp
  5. Scott Danforth

    3.0 mercruiser dieseling

    If the 3.0 is fuel injected, it will have a 160F thermostat. Carbureted, should be 140 degree thermostat
  6. Scott Danforth

    Skinny water day.

    Part of me wants to go for a ride in a new Zealand jet boat. The hull is lined with 1/2" of delrin to bounce off the rocks
  7. Scott Danforth

    Help me identify what engine I have in my new boat

    I know Summit ships to Canada, Germany, Australia, and Scotland based off hotrod buddies
  8. Scott Danforth

    motor guide no reverse

    Contact Motor Guide
  9. Scott Danforth

    Testing Gas Flow on 82' Wellcraft Sterndrive

    Mercruiser 470 dizzy 3.0 dizzy
  10. Scott Danforth

    Skinny water day.

    Some co-workers run in 1-2" with their custom flats boats. They are tunnel cats with a jack plate. Once on plane, you raise the motor all the way up and just skim the surface
  11. Scott Danforth

    Just thought I'd share a nice photo.

    It's also compounded because the gear should be almost twice as large for the loads we are seeing in order to use cheaper materials....... Because sales wants smaller....smaller....smaller....more power density
  12. Scott Danforth

    Just thought I'd share a nice photo.

    Yes, two shortcomings, one was improper material for the gear, and an issue with induction hardening of the worm
  13. Scott Danforth

    Just thought I'd share a nice photo.

    C91700 gear, induction hardened SAE 1045 worm.
  14. 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...
  15. 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
  16. 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.
  17. 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.
  18. 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.
  19. 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...
  20. 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.
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