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  1. Scott Danforth

    VP 431B plug wires

    have you gone to the top of the forum, go to the buying section and get plug wires from iBoats? Sierra brand are ok
  2. Scott Danforth

    Make and Model?

    remember, any boat that is free or near free or "a good deal" should be considered a project boat that will require many thousands of dollars to make it safe. also, does the boat have the proper paperwork (bill of sale, title, registration, trailer title, etc.). if not, its a yard planter.
  3. Scott Danforth

    Mercruiser 3.0 squeal keeping engine from starting

    I would have pulled the motor by now and got i on a stand and had the pan off. if its back by the flywheel, it may be a core plug coming out if its internal, you could have a spun bearing
  4. Scott Danforth

    Mercruiser 4.3L 190 HP Carb/Manifold Intake Upgrade

    FYI, Carter is airtex. Carter has been the OEM for years. no need for a regulator. been using the carter variants in both marine and auto and diesel for years
  5. Scott Danforth

    Found a crack

    I also work for Beer
  6. Scott Danforth

    Wellcraft 170 American underpropped?

    3.0s will warp the head at rpms over 5000 When I had tha Avanti, i had a 15p for water sports and trolling, a 17p for general use, and a 19p for long cruising There just isnt enough power out of the 3.0 When pulling skiers, I normally had to move the spotter to the bow to get the boat on...
  7. Scott Danforth

    Options for adding floatation to 13' aluminum dinghy/rowboat?

    Turn boat upside down on saw bucks, pour a bit of 2# foam in each seat, wait 30 minutes, then flip back over and go boating
  8. Scott Danforth

    1980 OMC 140hp electrical

    Resistor wire should be the section of wire between the coil and choke
  9. Scott Danforth

    Missing timing tab? Merc 4.3 2005

    Post #3 shows a 1995 or older timing tab
  10. Scott Danforth

    Mercruiser 230 v8 milky oil

    if it was a cracked block, normally the oil mikshake would push out the breathers. however it only takes about 6 ounces of water in the oil to make a milkshake. pressure test as Scott suggested (need to drain the water first). it should hold 15psi forever. if it passes, change oil at least...
  11. Scott Danforth

    5.7l mercruiser gen 1 alpha 1 to vortec head swap problem please help...

    I am pretty sure you were running lean. your comment on plugs looking clean would collaborate. I know when I put vortec heads on the '88, and changed the cam, I was running 75 primary jets and 92 secondary on the Holley 715 (up from 2 primary and 85 secondary) I may have been running a tad...
  12. Scott Danforth

    5.7l mercruiser gen 1 alpha 1 to vortec head swap problem please help...

    correct, however premium gas in montana is 89 octane, premium in Wisconsin is 91, and premium gas in florida is 93 octane. OP also stated running old fuel with stabilizer. as fuel gets past 6 months, it starts to break down however octane doesnt matter if you are running lean
  13. Scott Danforth

    Using Neoprene Strips to Cushion Marine Gas Tank

    how about EPDM rubber strips that wont absorb water and hold it against the tank. historically they used roofing felt (tar paper) folded twice. I would not use any foam weather stripping as it will hold moisture against the tank
  14. Scott Danforth

    Underpowered Yamaha 9.9

    I get 15mph on a 14' boat with 15hp. your fine in your 14' boat at 14mph with a 9.9 if you believe youtube, please see the doc for a session on the couch
  15. Scott Danforth

    5.7l mercruiser gen 1 alpha 1 to vortec head swap problem please help...

    with the flat top pistons that are in the engine, and with vortec heads, the compression ratio is 9.4:1 the heads on the 91 should have been 64cc heads just like the vortec, however the vortec heads have the LT3 combustion chamber on my AQ271, I had run stock GM block, comp cam XM262 and...
  16. Scott Danforth

    Mercruiser Parts Shortage?

    Mcmaster Carr also sells stainless rod and some tapping dies
  17. Scott Danforth

    Trolling motors on ski boats

    or the ones that mount on the trim tabs lenco makes the troll-n-tabs
  18. Scott Danforth

    5.7l mercruiser gen 1 alpha 1 to vortec head swap problem please help...

    agreed, plugs should be caramel brown and not "still mostly clean" if you did not re-jet, that is one part of the problem. to loose the head gasket, you would have to have either lots of piston eating detonation or you havent got sufficient clamping.
  19. Scott Danforth

    Time for a ‘new’ boat?

    Hey Ted, have you looked at the new Aviaras? https://www.aviaraboats.com/#welcome Matercrafts upscale line, made in Vonore TN available as both I/O and OB
  20. Scott Danforth

    5.7l mercruiser gen 1 alpha 1 to vortec head swap problem please help...

    first, welcome aboard second, what year motor did you start with?what style of ignition? did you read your plugs after your conversion? was the motor seriously overheated? did you re-jet your carburetor? tuliped valves come from overheat and running lean. to blow a head gasket means that...
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