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  1. Scott06

    Gimbal Bearing Science

    Yes absolutely grease it while idling In the old days you could just flip the bearing 90 degrees in the outer carrier to replace but merc started installing them the other way around to prevent this
  2. Scott06

    sudden loss of power

    Take the fuel filter off and dump contents in a clear container. if there is junk in there you will need to clean whole fuel system. if ok put the filter back on.
  3. Scott06

    Lower unit lifter. Solenoid?

    Usually if you have to use the trailer button to raise the drive the trim limit switch is bad. It is on the port side of gimbal ring and can be jumpered in engine compartment or at trim pump. Can't comment on transom switch but both throttle and transom switches will activate the same two...
  4. Scott06

    142 supercharger on a stock 5.7 ?

    Yes on the AFR meter./O2 sensor stab in. I have moved the same meter between my 65 GTO and my boat. would not do this without it Will provide much better info than plug reading, especially in transition areas like rich/lean step up on rods, secondary kick in Etc
  5. Scott06

    sudden loss of power

    What does your fuel filter look like on the inside I suspect you have a fuel delivery issue but it’s Scott outline starting with some basics
  6. Scott06

    142 supercharger on a stock 5.7 ?

    out of my area of expertise
  7. Scott06

    142 supercharger on a stock 5.7 ?

    Even if there is a preset map based on air pressure , any engine will still be down on power at altitude. its not AFR that causes the power loss , its the lower O2 content in air. So you can get the AFR ratio right but you will still be down on power. Superchargers gained use during second world...
  8. Scott06

    142 supercharger on a stock 5.7 ?

    if you read up on sniper weather it is automotive or marine some folks have issues setting them up. Its not that the system doesn't work, seems more like Holley oversells the self tune feature. Seems like some folks have to go download different fuel mapping from holley to get them to work...
  9. Scott06

    142 supercharger on a stock 5.7 ?

    Did you consider a 383 swap? would give about 340 hp if vortec headed several folks on here successfully running those in front of alphas especially in lighter boats, and would likely be an easier swap
  10. Scott06

    Gimbal Bearing Science

    Of it doesn’t swivel sounds like you got a pos aftermarket bearing definitely needs to swivel send it back Looks like the grease hole in outer housing doesn’t line up with grease hole in race of bearing
  11. Scott06

    StarCraft Starcheif Throttle Control

  12. Scott06

    StarCraft Starcheif Throttle Control

    Pretty sure the separate lever is for reving it up in neutral.
  13. Scott06

    Need to add or replace some baseboard for additional heat..ANYONE DONE THIS???

    I would replace the section under the window with the high output stuff. a window that big even if it is a good quality window will be a huge source of heat loss. could also be impacted by thermostat location would want thermostat in colder areas. is the roof or ceiling above similar R value...
  14. Scott06

    Reverse engine lock won't hold on vintage Mercruiser IO 153 cu.in. 120 hp engine

    Like the tow vehicle ... sorry cant help much with your issue.
  15. Scott06

    Reverse engine lock won't hold on vintage Mercruiser IO 153 cu.in. 120 hp engine

    I belive it is a 1A, 1B, 1C EZ drive. They made them 1965-68. they were replaced by the MC-1, have a hook on top like an MC-1 but have only tilt not trim with one hyd line per cylinder. Also had separate lube reservoirs for upper and lower... Amazing the OP still has it in working order, my...
  16. Scott06

    Steering issues

    I think you have to break the problem down to pieces Disconnect the steering cable at actuator see how it turns, look at ps fluid see if you are low, would disconnect drive steering arm from actuator and see if drive moves freely . Hopefully you can determine where it is binding up
  17. Scott06

    Wellcraft 34 gran sport 1989

    Did you try googling it ? https://www.google.com/search?q=bilge+vent+covers&rlz=1C1GCEU_enUS915US918&oq=bilge+vent+covers&aqs=chrome..69i57j0i22i30l2j0i390l4.3419j0j15&sourceid=chrome&ie=UTF-8 Here is hardins selection https://www.hardin-marine.com/c-28-bilge-vents-cowls.aspx of course these...
  18. Scott06

    Engine dies going into reverse

    In addition to the switch-Usually if the shift interrupt switch gets tripped going into gear it is a sign of a worn or sticky lower shift cable. If you remove the lower shift cable from shift plate you should be able to shift the drive with two fingers on the cable little effort...if it takes a...
  19. Scott06

    Thunderbolt 5.0 keeps dying

    There is an error in packaging or counterfeit part. The needle and seat always comes together as a matched set regardless of weather it is a spring loaded needle and seat or not. Contact who you bought them from and return them. Also make note since the spring loaded needle and seat was a...
  20. Scott06

    Can the base of engine work? Two to bolts under engine are rusted and can

    keep an eye on temp gauge get used to where it is. if water flow stops engine will get hot immediately. on my old boat with 140 deg thermostat used to at hot idle run about 150 normally temps started creeping up to 160 ish just before impeller died, then it got real hot real fast... get used...
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