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  1. Scott Danforth

    1985 4.3l v6 mercruiser piston rings

    GM used mahle rings in 1985
  2. Scott Danforth

    Manuals for 5.7

    You need make, serial number, etc. Here is a link to places to get manuals. https://forums.iboats.com/threads/boat-manuals-owners-manuals.770690/ Base engine is simply a GM 5.7
  3. Scott Danforth

    1970s winday day cruise foam core deck

    The main reason for delamination is too low a density of foam (based on many threads on boat design). The foam starts to break down due to loading If the top layer is delaminated, you need to remove the whole outer skin. I would also take a core sample (about 1" in diameter) to see if the...
  4. Scott Danforth

    Changing outdrive on my inline 6 165 HP.

    MC1/Alpha drive is 75# 2 cases of beer is 80#
  5. Scott Danforth

    bilge pump wiring. My head is going to explode

    Suggest you start your own thread regarding your own boat.
  6. Scott Danforth

    Mercruiser 4.3 L Manifolds

    paying marina prices for both labor and parts, you are looking at over $2500. if you do the work yourself, you are looking at about $750 for the dry break kit
  7. Scott Danforth

    1970s winday day cruise foam core deck

    being a sailboat, while there is a bit less fairing and you may not have to redo the non-skid on the foredeck working upside down underneath...... however, its messy and a PITA. much easier to re-roll the non-skid from the top while working in shorts vs having to try and hold up 3 yards of...
  8. Scott Danforth

    Mercruiser 4.3 L Manifolds

    you probably have the problematic bat-wing manifolds. replace them.
  9. Scott Danforth

    Engine hours

    Just provide power as indicated How do you know the 483 is accurate? Most hour meters are not accurate, and the are generally used for maintenance guidance
  10. Scott Danforth

    1970s winday day cruise foam core deck

    That would be more work than removing the top layer, removing the damaged core, gluing in new core, then 3 layers of 1708 vacuum bagged
  11. Scott Danforth

    pressure test lower end adapter

    Motor is 3/8-16 Bicycle stem threads are 5/16-24 Some air hose threads are 1/8" NPT The adapter I use with my mityvac is the one from my $4 lube oil pump kit
  12. Scott Danforth

    1970s winday day cruise foam core deck

    It's not sprayed in if it's laminated. It was core foam put in the mold then covered on (layer on the inside)
  13. Scott Danforth

    Tips On Replacing Starter

    Go up to the 3 dots in the upper right hand corner. Click on the desktop version
  14. Scott Danforth

    Is there a better latch for my engine cover?

    Doubt you even need them
  15. Scott Danforth

    1970s winday day cruise foam core deck

    Recore with foam I would use poly vs epoxy Epoxy won't melt the foam. It's just 3x the cost
  16. Scott Danforth

    Marine Max data breach?

    marine max owns a bunch of marine parts stores. heck, capital one got hit a few years back. hackers must die
  17. Scott Danforth

    Changing outdrive on my inline 6 165 HP.

    did you check the alignment? (should be done every year)
  18. Scott Danforth

    '85 Sierra 16.5' Fiberglass - Floor / Transom / New Layout

    skip the MEK..... go straight to grinding. figure 4-6" past every seam for tabbing...... then grind about another 4" further than you think
  19. Scott Danforth

    Math problem

    at idle in a barrel, only about 50-70% of the fuel and oil gets burned, the remainder goes out the exhaust and becomes sludge. most of the fogging oil goes out the the exhaust.
  20. Scott Danforth

    Math problem

    This
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