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  1. J

    17 vs 19 vs 21 Pitch?

    I don't see a 10 mph increase.....maybe 5. Props aren't magical . They're for fine tuning.The #'s you see are for the same boat, load , and conditions. Props were new Merc. 3-16x13 and a 3-16x12. You can see the 12 pitch hit 22.5 mph@6000. I could hit 6100+ rpm which could get me 23+ mph but...
  2. J

    Sad Day For the SS United States

    not at all.....we add that 51st state and all will be well.
  3. J

    Sad Day For the SS United States

    according to all the articles I've read about re-purposing the ship over decades, all of those avenues had been exhausted. A museum, a refit, a shopping "plaza", a restored exterior display with historical status. the universal conclusion was too much money. The objectionists always only offer...
  4. J

    Sad Day For the SS United States

    kinda impressive, even under tow....it's as if those big stacks would be saying "get out of my way".
  5. J

    Sad Day For the SS United States

    flew over it dozens of times landing in philly.
  6. J

    Prop Selection - Bayliner 175

    same to you
  7. J

    Prop Selection - Bayliner 175

    lol...and this isn't a rabbit hole? Who started the compression topic "rabbit hole " Don't highlight my post and gaslight it as a rabbit hole. My comments are to the OP , not you. He can take it or leave it. His time, his money, his boat. Just because you're a moderator doesn't give you insult...
  8. J

    Prop Selection - Bayliner 175

    all that's left, then, is to scope the cylinders....and revisit the type of pistons (domed maybe?) ....was there a performance head available? What octane fuel are you running? question...can a motor run as good as you say with water infiltration as mentioned?
  9. J

    Prop Selection - Bayliner 175

    well...here's this, So, carbon buildup in the cylinder/head could cause abnormal high psi's.,....is your engine showing signs of pre-ignition/detonation? And, is there a "knock" sensor on these motors like a modern car's motor? If so, could that be the reason timing shows retarded at higher...
  10. J

    Prop Selection - Bayliner 175

    ...maybe the initial owner broke the motor in extremely well...😉
  11. J

    Prop Selection - Bayliner 175

    where's the sticky for the compression specs supposedly in here ? Here's a guy from 2010 getting similar results and yet being told 150 psi. should be maximum.......confusing. Now I'm curious myself, I want to know. To the OP: just how well is that motor running? Does the starter struggle to...
  12. J

    Prop Selection - Bayliner 175

    these are my #'s with different props. 3 give the same #'s, 1 is my load prop. There isn't a magical prop, at least not for me. Not for trying. And a pontoon isn't a planing hull, but props aren't magical. The #'s are just not that far apart.
  13. J

    Prop Selection - Bayliner 175

    A Merc. 3 blade 16x13 pushed my pontoon to it's best performane #'s lightly loaded. 25+ mph but maxed rpms were 5800. 6000 is ideal. But it was a dog when loaded down. A Merc 3 blade 16x12 gave only 22+ mph @6000...I could go over the 6000 however. But when loaded down (pulling teens on tubes)...
  14. J

    Prop Selection - Bayliner 175

    "So I'm confused when you say a 19P 4 blade is equal to a 21P 3 blade, I would have thought it was the opposite, that a 21P 4 blade would be equal to a 19P 3 blade." when you add a blade, that is the same as increasing the "bite" (pitch). So to equal out, you would add pitch (or diameter) if...
  15. J

    Prop Selection - Bayliner 175

    It's just what I've always been told. But all miscellaneous issue should be fixed before spending money on props. And agreed, if that prop hub/gearcase isn't a match, it won't work. and see pic.. mine is black. maybe you don't need one.
  16. J

    Prop Selection - Bayliner 175

    Every compression test I've ever done is with all plugs out and WOT while cranking. That's what I learned 50+ years ago when I started messing with engines. There was no internet so this knowledge came from quality, reliable service manuals and other publications. didn't see that mentioned...
  17. J

    Gph at various rpm...thoughts?

    ok...here. This is a 2021 Merc 115 hp CT pushing a twin tube (25") pontoon. 5800 - 10.6 gph.......2.35 mpg 5000 - 7.0. ". ......3.1. " 4000 - 4.1. ". .......4.3. " 3000 - 2.15. ". ......5.5. " 2000 - 1.2. " ......5.4. " These #'s ,+/- 0.2, are from 3 of my props...
  18. J

    Starting your car in this cold weather.

    can't believe this wasn't mentioned. Remember? You had to "set the choke" first by pressing the gas pedal to the floor. If really cold, maybe a pedal pump or two for the accelerator pump to spray some gas into the carb throat. After starting, it ran at high idle and after a short time, you...
  19. J

    2024 suntracker party barge with the sun tracker flare

    some pictures would help. There are no boat specific wiring diagrams. There are marine wiring keys/colors such as these. I would guess on a 2024 that these switches were unused and put there for accessory add ons. Purple wires are positive 12v when the ignition is turned on. That's how most...
  20. J

    Looking for old fasteners

    try here
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