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  1. Scott06

    Mercruiser 4.3L 190 HP Carb/Manifold Intake Upgrade

    I dont use a pressure regulator in front of my 1409 no issues, just the stock merc low pressure pump
  2. Scott06

    Edelbrock 1409 tuning

    Ohm the primary and secondary side of the coil before replacing
  3. Scott06

    Edelbrock 1409 tuning

    check the plugs first that should drive your next steps int terms of rich or lean primaries or secondary jets... If the springs didnt make a diff try one the other way lighter spring to make it stay lean a little longer. In the end I found on my 5.0 the 1409 was pretty much except for...
  4. Scott06

    Could a 4 blade actually be faster?

    First verify your tach is accurate vs a shop tach or tach in a modern timing light. I would doubt a 3.0 will swing a 19" to 5300, so if tach is off there is some of your slip issue (rpms arent actually that high). Is the prop in good conditon? Four blades generally are slower, I ran two...
  5. Scott06

    Wellcraft 170 American underpropped?

    verify your tach it may be off as 5500 rpm this engine wont live very long , 4800 is the upper limit. 3.0 s are not noted for their power its only 135/140 hp. First is the engine in good operational condition ? Compression ok, ignition components serviced , fuel system carb in good working...
  6. Scott06

    Mercruiser 230 v8 milky oil

    Pressure test the cooling system and see if it leaks And where it leaks into
  7. Scott06

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

    Quadrajet is a very good carb properly set up you may want to speak to cliff ruggles at https://cliffshighperformance.com/ he is the q jet guru, maybe able to offer suggestions for you
  8. Scott06

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

    Check and see if there is foam in there already . Had a 12 ft aluminum boat as a kid it had same type of seats with foam in them. You couldn’t sink the thing, and we tried… otherwise use some type of expand foam to fill
  9. Scott06

    Rochester Divorce Choke...To Be or Not To Be...that is the question

    You can get probably any Qjet part you would need here should you desire to fix it- https://cliffshighperformance.com/shop On the other hand , I had a dead choke coil in my mercarb and ran many years with it forced open. A couple of throttle pumps to prime via the accelrator pump and fast idle...
  10. Scott06

    Edelbrock 1409 Marine Fuel Pump Vent

    Google is your friend google this - edelbrock carb fuel line kit you will find several options like this and a Sierra fuel line with 90 degree flare fitting that should go all the way to the fuel pump
  11. Scott06

    Figure this out , I`m confused

    And a big one at that
  12. Scott06

    Burned valve or worse 1997 5.7 LX

    Nice clean install good luck
  13. Scott06

    Vortec 350 5.7 Mercruiser Build

    I dont think that thermostat lifting eye is used for anything but taking some weight off the engine front for alignment. Mine had two liftng eyes font and back on opposite heads like you outline. Normally a bolt into any cylinder head accessory bolt hole will do the trick. Don’t really need the...
  14. Scott06

    Engine Alignment and Engine mount question

    This explains how a gimbal works and centering the gimbal to the coupler chris has a link to his videos in his signature id recommend them highly
  15. Scott06

    Missing timing tab? Merc 4.3 2005

    Right is before top dead center. Crankshaft will turn clockwise when viewed from the front of engine
  16. Scott06

    1987 Sea Ray Pachanga 2, 22ft

    Assuming it is the original engine 4200-4600 rpm. Personally id rather be on the upper end say 4400-4600 rpm, better to be under propped than over propped. if you are just cruising occasional tubes especially if loaded you may want a four blade for better holeshot and stern lift. Check in after...
  17. Scott06

    Vortec 350 5.7 Mercruiser Build

    you can run it on the gorund before you drop it back in pretty easily to test everything out.
  18. Scott06

    1987 Sea Ray Pachanga 2, 22ft

    Yes you would need a 1.47 ratio. I would start with the prop thats on there and you already own , see where you land in terms of performance and WOT rpm then adjust to suit your needs. Typically expect to see a 19" or 21" three blade on this rig but prop selection is best made after some run...
  19. Scott06

    Vortec 350 5.7 Mercruiser Build

    I was under the impression that all TB Vs looked liek this...
  20. Scott06

    Pulling tubes from my ski eye.

    Thats what I've used on multiple boats with 4 kids at a time kids trying to submarine the tube etc no issues no cracks ... no problem
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