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  1. kd4pbs

    Trailer bearing blowout. Need help with repair(s)

    At least idiots of days gone by did not typically drive on the wrong side of the road with their face buried in a worthless hunk of silicon oxide. Once that started happening, I decided it was time to retire the helmet which I had worn for almost 40 years. These fools nowadays just ruin...
  2. kd4pbs

    Cicada

    You'll need to put it in a pressure or vacuum chamber to help get all the bubbles out. I use a pressure paint pot to cast epoxy stuff. Should look pretty cool once finished!
  3. kd4pbs

    Keep blowing my starter solenoid up.

    For some reason, my numbers differ greatly. I=P/V
  4. kd4pbs

    Carbon fiber keel guard

    I don't believe epoxy impregnated carbon fiber would hold up very well to abrasion - at least any more than fiberglass when impregnated with epoxy. I'd think you would want something metal, rubber, or plastic. Edit: Sorry! Nevermind - I think you're talking about impact resistance, not...
  5. kd4pbs

    Great loop speed record attempt

    Dang! How big of a boat would make a wake that lasts weeks?!
  6. kd4pbs

    New phone

    Only time I did a song for when phone was being called was the Imperial March from Star Wars when the ex wife would call. She's dead now, so the phone just sounds like - GET THIS!!! - a phone when it rings ;)
  7. kd4pbs

    Keep blowing my starter solenoid up.

    That would actually be R=∞ ;) Update... dang - I need to remember to read ALL the updated posts! Jason... that would have to be a superconductor for sure!
  8. kd4pbs

    Mercruiser 165 6cyl inline dies when boat is in the water

    Intake manifold vacuum. As exhaust restriction increases, manifold vacuum drops. Well, pressure increases... vacuum diminishes... goes more towards atmospheric pressure... I apologize for the ambiguity ;) I'd think that engine should show at minimum 17 or so in Hg depending on your altitude...
  9. kd4pbs

    Tilt / Trim Motor Torque Specs

    Being a pedant myself as well, I appreciate the differences and the reasons why ;)
  10. kd4pbs

    5.7 Switched 12v

    You may want to run the existing switched supply to a relay which is wired to a circuit capable of lots of amps. These ECMs can draw more current than your original ignition circuit is capable of supplying. One word of advice switching from carb to a throttle body EFI: Do something about the...
  11. kd4pbs

    Mercruiser 165 6cyl inline dies when boat is in the water

    Did these have flappers in the exhaust? Perhaps one melted and broke loose, lodging itself down in the exhaust passages, and the little bit of extra restriction from the water is enough to tip it over the edge. Do you have a vacuum gauge? Do you have a small endoscopic camera to snake into the...
  12. kd4pbs

    Keep blowing my starter solenoid up.

    As long as the power load is designed for that higher voltage, you are 100% correct sir. I don't think rpatton swapped out all of his 12V accessories for 16.8V accessories though ;)
  13. kd4pbs

    Keep blowing my starter solenoid up.

    DC and universal motors draw less current with less input voltage. AC induction and synchro motors do indeed draw more current the lower the applied voltage. If this were not the case, if your battery is very worn out to just 3 volts when cranking, and you engage the starter, sparks, melted...
  14. kd4pbs

    Keep blowing my starter solenoid up.

    Lou - this is basically what properly installed multi-battery systems with battery isolators do. In my Regal (5.7 Gi V-P DP-SM) I've got two batteries which are charged through a battery isolator. There's a sense line coming from the isolator that runs back to the sense terminal on the...
  15. kd4pbs

    Keep blowing my starter solenoid up.

    That is correct. And I=V/R, and R=V/I. Resistance doesn't change. The load resistance is the load resistance. There are exceptions, like with devices that have certain types of DC-DC converters, but for some of the loads on our vessels, they can be characterized as a simple resistor. If that...
  16. kd4pbs

    Keep blowing my starter solenoid up.

    Higher voltage will cause most accessories to draw higher current. Scott hit the nail on the head - you've got a connection someplace which has high resistance indicated by the fact your voltage regulator's reference (sense) line is apparently seeing a lower voltage than normal due to resistance...
  17. kd4pbs

    Need different prop for pulling

    I have now officially heard of one person who did not have a good experience with a high-five ;) Scott, I'm curious as to what metric it was poorly performing. Holeshot? Tracking? Stern lift? For sure they are considerably slower top-end, but I'll trade that for higher performance...
  18. kd4pbs

    Mercruiser dies after getting on temp

    Assuming the points are good, with the points open, you will measure full battery voltage on the coil + wire due to there being no current dropping the voltage through the ballast resistor/wire. With the points closed, you will see the battery voltage minus the voltage drop across the ballast...
  19. kd4pbs

    Need different prop for pulling

    5.0 Gxi HP rating is at 4600-5000 RPM. My opinion would be look for a 5-bladed SS prop. Had a late 80s 21' cuddy with a much weaker 5.0 2bbl Alpha. Was a dog. Put a Mercury High-5 on it (IIRC a 17" pitch) and it would yank my large rear end out of the water standing on a wakeboard like...
  20. kd4pbs

    Let's talk skill...

    Present day me still hears the characteristic squeak - pause - squawk of the cable and pulley steering setup from my uncle's wooden outboard runabout that 6 year old me would make when fishing with him and my dad. I was told to just point to that tower with the red light. I hadn't quite...
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