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  1. Scott Danforth

    5.7L rebuild and upgrade to vortec heads

    you shouldnt see anything in your oil. however a simple oil test will tell you. a well maintained marine motor will go 5000 hours plus
  2. Scott Danforth

    Water in bilge? Bilge pump runs too often.

    base engine stuff you buy from GM or one of the GM suppliers marinization stuff like drive specific kits, you buy from the OEM things like deck hardware, radios, etc. stuff that wont sink your boat or strand you if it fails can be bought from a chinesium source.
  3. Scott Danforth

    £20million superyacht goes up in flames

    Aluminum does burn. once the Diesel or Jet A on the yacht gets going, the aluminum will burn right down to the waterline. aluminum dust is highly explosive
  4. Scott Danforth

    I need a couple pictures of a SBC powered AQ 290

    Volvo Penta 855373 per the parts breakdown for an AQ271c or AQ311
  5. Scott Danforth

    I need a couple pictures of a SBC powered AQ 290

    Get the correct molded hose. There is a 150 degree loop at the top of the hose, then the hose runs along the oil pan rail to the front of the engine and does a zig-zag between the belts and to the raw water pump.
  6. Scott Danforth

    5.7L rebuild and upgrade to vortec heads

    You are overthinking it. The SBC is the Mr potato head of the motor world All SBC heads fit all standard deck blocks from 1956 to today. Just get the right combustion chamber Any 5.7 liter 64cc vortec heads will work New fully assembled vortec heads are $900, good reconditioned used are...
  7. Scott Danforth

    Vaping

    Google popcorn lung
  8. Scott Danforth

    5.0 Mercruiser Cutting Out While Underway

    Is your distributor trigger have 2 wires, or is it the new 3-wire design,m
  9. Scott Danforth

    1983 beachcraft

    Check the stringers for rot Replace the raw water pump. I would do a complete kit Inspect the splines on all 3 pieces of the drive shaft Keep an eye on the gear lube
  10. Scott Danforth

    1983 beachcraft

    Welcome aboard. Unless you love working on obsolete boats with obsolete drives, I would recommend looking for a newer boat without an OMC drive.
  11. Scott Danforth

    5.7 Vortec Runs Great On Land but Bogs Under Load in Water

    Any electrode that is white is either not getting fuel, or has water in the cylinders
  12. Scott Danforth

    Volvo Penta Belt Tensioner

    welcome aboard the tensioner should be spring loaded. either its bad, or improperly installed
  13. Scott Danforth

    Mercrusier 350 MAG MPI - RPM issue under a load

    could be a head gasket leak to the cooling water jacket that only leaks under load, could be the start of a manifold leak, could be the start of a head crack leak. pressure test the cooling water jacket to be sure
  14. Scott Danforth

    Oil filler cap filter

    its probably a breather cap. do you have a nipple for running a hose to the spark arrester?
  15. Scott Danforth

    Mercrusier 350 MAG MPI - RPM issue under a load

    send the injectors out to be cleaned and flow tested water does not automatically mean hydrolock
  16. Scott Danforth

    Mercrusier 350 MAG MPI - RPM issue under a load

    you either have injectors not firing, or you have water in the cylinders on half your plugs your white electrodes should be a nice caramel color
  17. Scott Danforth

    Power Steering Leaking Into Water?

    that is one of the two modes of failure on the PS coolers The other is the raw water with oil gets pumped thru the engine and goes out the exhaust
  18. Scott Danforth

    Water in bilge? Bilge pump runs too often.

    from the mercruiser stickies https://forums.iboats.com/threads/must-have-technical-information-for-diyers-an-work-safe-search-version-of.335378/ https://forums.iboats.com/threads/miscellaneous-mercruiser-information.323278/ and here are the videos...
  19. Scott Danforth

    Totally baffling !!! Impeller replaced !! And not pumping

    Start your own thread. Don't hijack threads
  20. Scott Danforth

    Bilge pump float sticking.

    You shouldn't need a bilge pump unless you have a leak Yes, running dry is not good for the pump
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