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  1. Texasmark

    Outfitting Klamath 18 CC with 2017 60HP CT trying to figure where to start on Prop size. Probably aluminum.

    Do a www search for go-fast.com prop slip calculator. The gear ratio is the raw number not the X:1 whole thing. If it's 2:1 insert a 2. Then plug in your prop pitch in inches....like 16 you mentioned. Then plug in your engine's recommended max RPM like 5500. Then solve for max speed and...
  2. Texasmark

    '00 Mercury 90hp, oil injection still works, time to replace it with premix or replace worn parts?

    At 10 years of age I decided to go to premix with my '02 90. Just felt like doing it and figured just one less thing to worry about. The other thing was that I boat seldom and the Mercs in my life like a lot of fuel to light off the first time after sitting. If the crankshaft is turning the...
  3. Texasmark

    9.9hp water in crankcase oil

    Condensation, especially in fall and winter months where the engine isn't run long enough to "dry out" initial operation combustion moisture......but being milky, that would/should take a lot of condensation (opinion). Drain the oil and replace it with the filter if any. Run the engine enough...
  4. Texasmark

    Looking at 8hp and 15hp 4stroke Merc

    The motion is contained in the device developing the thrust be it a jet engine or a twisting outboard propeller. As you said, there doesn't have to be motion of the object being subjected to the thrust.......but there can be if the objects resistance to the thrust is adequate........released...
  5. Texasmark

    Looking at 8hp and 15hp 4stroke Merc

    Er-ah just noticed a misnomer: ".....propeller torque will.....". Torque is pressure (Force). Thrust is pressure in motion, aka HP.....(torque x RPM)/5252. Thrust acts on the engine position.
  6. Texasmark

    Looking at 8hp and 15hp 4stroke Merc

    If you don't have the tiller attached to something, unless you have the engine to transom clamp bracket squeezed down tight (making tiller arm steering impossible when you attempt to guide it) propeller torque will turn the engine sideways and you would go around in circles.
  7. Texasmark

    1963 Mercury 350

    The thrust washer is there for the prop to have something to push against rather than the engine casting. Thrust washer is easily identified as it is thick and has a tapered inner diameter made to fit against the tapered part of the prop shaft. Tapering helps to ensure that it is centered...
  8. Texasmark

    Co-owning a boat?

    No deal. Same with loaning things. You never know what you get when its your time to use, or on loaners, you never know what you are getting returned to you.
  9. Texasmark

    Tracker Guide V14~good?

    On the "I don't want to do the work" at 82 I am coming up with the same conclusion on a lot of things. But I have to have something to occupy my time so I am selective on what I choose to invest my time and withering body abilities.
  10. Texasmark

    trim gauge

    Does it do it with the boat on the trailer? I think the sending unit is a mercury (element of nature) bubble moving around in a tube of some sort. I don't know how the sender translates this into a voltage signal. Guessing I would say this is pretty bullet proof. Meter movements can fail as...
  11. Texasmark

    Getting new prop, couple questions

    Agree and that's why they are sitting on the shelf, not mounted on the engine. I had purchased a 20 year old boat and was trying to understand where I was with engine condition and boat performance. Since the props were cheap was no biggie to experiment.
  12. Texasmark

    Can’t Figure out Prop ….

    Well I don't know what is on there but I agree with his thinking on dropping pitch when adding the 4th blade.
  13. Texasmark

    Getting new prop, couple questions

    Those dual 4 blade (aluminum black) props were probably Turning Point brand Hustlers and I have a couple of them and some of their 3 blade aluminum props. The brand advertises to put SS high performance functions in a rigid aluminum prop saving the buyer some money over SS. 3 blades have the...
  14. Texasmark

    16ft Glasspar w/65hp 2 stroke

    Per some Merc data I stumbled across years ago, the fewer the blades the more efficient the prop as it has more "clear water" hitting the blades. However, blade area is what contacts the water and if you need a lot of whoopie you need a lot of blade area. Merc ran 2 blade props OEM back in the...
  15. Texasmark

    What color should my gear oil looks like

    I use the premium so maybe the general purpose is petroleum looking.
  16. Texasmark

    What color should my gear oil looks like

    Mercury is easier to diagnose as it is blue-black in color and water shows up easily.
  17. Texasmark

    Prop Damage

    Side note: I had a 125 Johnson with an aluminum prop and boated in a newly filled lake with many saplings in and above water as they grew naturally. Sunday we would go out for fun and Monday at lunch break the prop would go to the prop shop to get a bent blade fixed. Went to the new OMC SST...
  18. Texasmark

    Insurance for older boats

    I have a 2002 Crestliner Fish Hawk 1750 and Farmer's insured it.
  19. Texasmark

    Too big to beach?

    I see at least 2 and probably a 3rd unseen outboards on this craft. If he can't work it off by putting the engines in reverse, tilted vertical if the water is deep enough otherwise as low as the bottom will allow, and moving the helm back and forth in a swinging action with as much throttle as...
  20. Texasmark

    98 Mercury 90 hp Throttle cable/throttle lever problem

    Preload defined as push the engine throttle arm all the way back. Put the remote control in the N position. With the throttle cable center conductor connected to the engine's throttle arm and the barrel on the outer shield, turn the barrel so that it is about 1/4" (give or take) forward of the...
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