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  1. Scott Danforth

    Merc 3.0 Sterndrive Winterizing Question

    Fresh water rust is primarily staining Salt water rust is deep Metal underwater rusts much more slowly than wet metal exposed to air Air doesn't freeze until -471F Most PG antifreeze will freeze about 0F. Straight PG antifreeze freezes at -86F
  2. Scott Danforth

    1964 9.5 evinrude

    motor looks like you ran it without any cooling water and without the proper fuel/oil ratio its your motor. fix it or scrap it is up to you. was the first thing you did on this new to you motor install a new raw water pump? what are all the "new" parts that you installed?
  3. Scott Danforth

    Prop pitch for 150xp crossflow on pontoon

    Exceeding the manufacturer rating means you are on your own legally. If an event occurs you will be in your own While there are pontoons with 700 to 1200hp. They were designed and tested as such from the factory.
  4. Scott Danforth

    Engine oil choice 1984 3.8l

    SAE 30, 15W-40, 20W-50 will all work Your tilt system and power steering system also use SAE 30. You can drain those systems and swap to ATF. However most likely your lawnmower and pressure washer also need SAE 30. I buy the big 2.5 gallon jugs at TS I would also look at swapping out the...
  5. Scott Danforth

    Merc 75 4 cylinders, 2 carbs

    Seloc manuals make good knee pads, you can prop the couch corner up with them. However they make terrible toilet paper and worse manuals You can order new manuals from Mercury dealer
  6. Scott Danforth

    Mercruiser 5.7 EFI Water in Oil

    Being on the hoist, I suspect salt water If your risers and manifolds are older than 5 years, check there first Agree with above. If you are draining everything first, you are ok. If you rely on a single point or 3-point drain, most likely the lower drain hoses are plugged. Inspect...
  7. Scott Danforth

    Winterizing Twin Cobra's

    because it makes people feel good. seriously, AF is optional per the manual
  8. Scott Danforth

    anyone have luck with aftermarket v/p fuel pump assy?

    Search the forums. The two airtex/Carter part numbers of the pump have been posted multiple times
  9. Scott Danforth

    Looking for idea's to hide window screws

    Look at the msds sheet for the primer. And check the sika chart https://usa.sika.com/content/dam/dms/us01/3/pds-cpd-SikaflexSealAdhPrimers-us.pdf
  10. Scott Danforth

    Popped through the intake.

    I think the rev limiter is like 5100 rpm IIRC
  11. Scott Danforth

    Trim/ tilt Volvo dp1?

    Use the factory service manual and trouble shoot what you have. Find what is wrong and repair back to factory
  12. Scott Danforth

    Looking for idea's to hide window screws

    Nothing wrong with sika or 3M or lifecaulk. They are all knife-grade adhesive sealants Sillycone has no place
  13. Scott Danforth

    Prop pitch for 150xp crossflow on pontoon

    not even worth trying on a poontoon. you will probably be in the 18" range with a high-thrust style prop.
  14. Scott Danforth

    Merc 75 4 cylinders, 2 carbs

    ebay, $20 https://www.ebay.com/itm/186096197578
  15. Scott Danforth

    Merc 75 4 cylinders, 2 carbs

    me, I would buy a manual from Merc. https://publications.brunswick.com/ or get a used on off of ebay.
  16. Scott Danforth

    Looking for idea's to hide window screws

    70F = 21C campers are a bit easier to heat than a boat hull. @Sailor96, if you still have condensation and moisture inside the boat after warming it up, you may have trapped moisture in the core material. you will find out when you pull the first window
  17. Scott Danforth

    Someday …

    https://www.nauti-craft.com/ I know a few of the folks on the US build team. Very cool tech
  18. Scott Danforth

    Tohatsu thrust washer

    I have merged the threads. do not start multiple threads on same topic
  19. Scott Danforth

    Someday …

    I think I would want a Nauti-Craft with the wave taming hydraulic suspension system between the hulls and deck
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