Search results

  1. Texasmark

    water pump and shift shaft position

    You have to rotate the prop in both directions...one direction (CCW) it is locked to the crankshaft, the other direction (CW) the prop should move in and out (toward the LU casting and away, about 1/8-1/4 inch) and as it does you hear a clicking sound...like going over the teeth of a hand saw...
  2. Texasmark

    Spark Plug Wire Question

    Mercury ignitions are rated at 40,000 volts open circuit. Course if your plugs are always installed and fire when they are supposed to you will never see the open circuit voltage....more like 18-20,000 (SWAG). I "think" auto wiring is rated more like 25,000. Additionally, without having them...
  3. Texasmark

    Best lower unit lube

    Mercury Premium LU lube is in WW, in the sporting goods dept. They don't bother to mention if it's synthetic but its credentials (otherwise) are on the bottle. Comes in a quart with a tube and adapter to fit the threads in your drain hole.......pump also supplied. Can't get any easier than...
  4. Texasmark

    Help with motor height adjustment

    SWAG....indication of excessive air presence caused by prop being too close to the surface. I can't imagine what it was like driving that boat with the prop located where it was...mindboggling. Usually cavitation is on the reverse side of the blade, the low pressure side of the blade, caused...
  5. Texasmark

    2004 2+2 125hp ELPTO 2 stroke CONSTANT ALARM

    In your first picture, you circled a 1/8" NPT pipe plug covering a port where temperature monitoring equipment can be installed, like a thermostat which I use...dash mounted indicator, or water pressure which is popular, with dash indicator...has nothing to do with OT failure system. The alarm...
  6. Texasmark

    distance traveled per revolution

    On prop loans to find what works, usually they take back what they gave you to test....that means you put it on, take your data, stop, take it off, dry it off, shine it back up, put it back in the box and reinstall your old prop and be on your way....remember there will be other customers such...
  7. Texasmark

    Yamaha F90B prop

    Not necessarily. Lots of things to consider in getting the right prop for a boat. First thing we will need is some performance information now that we know your current prop info. Is your boat a 2 barrel "Toon" or a Tri-toon? What is the condition of the tubes....nice and shiny, full of...
  8. Texasmark

    Experience of Turning Point props? Prop failures?

    Turning Point prides themselves in their casting process. They show you the difference in the results of their process and regular run of the mill alum prop casting techniques. They talk about how their material won't bend under thrust loading like regular alum. is said to...I never watched it...
  9. Texasmark

    Help with motor height adjustment

    Don't leave us hanging and surely before you do something different. Porpoising is caused by the engine tilted out too far for the boat's speed, determined by lots of things including hull type and weight distribution and HP and prop specs, and all that. For a given rig, when you are up and...
  10. Texasmark

    selling my boat

    You might try advertising it. There are sales companies all over the place...I boats has a boat for sale section.
  11. Texasmark

    Help with motor height adjustment

    I understand your comment sir and would agree but with the significant dead rise at the transom, I don't think that is necessary and if he does what I said he will be out of options other than unbolting the JP and lowering it with respect to the transom. Let's see what happens.
  12. Texasmark

    Engine RPM drop

    Don't have that engine but I bet the spark advance mechanism is binding, either in your engine linkage or something under the flywheel. On smaller Merc engines, timing is around 0 before or after TDC at idle,....matter of fact you set the idle 675 rpm by changing the timing, while at WOT it's...
  13. Texasmark

    water pump and shift shaft position

    Well if your control is in N, engine off, and you can spin the prop freely, you are half way there. If you shift into F gear and the prop resists turning CCW viewed from the rear but ratchets as it turns CW you have it right. Don't shift into R without the engine running or somebody turning...
  14. Texasmark

    distance traveled per revolution

    Pull this up: https://www.go-fast.com/Knowledge-base/Find-your-prop-slip/Prop-slip-calculator It's all right there. Zero slip is a screw turning in soft wood. No such thing as negative slip and a propeller in water will always have some slip....fast fishing boats at WOT setup properly can be...
  15. Texasmark

    Help with motor height adjustment

    Tell you what...before you spend any money on another prop, drop your engine to the first hole on the JP (I assume you have 4 holes on the engine's clamp bracket and you are all the way up in #4) and loosen the bolts on your JP and drop it all the way down.....bolt everything back up and take...
  16. Texasmark

    Need help identifying this (i believe) 50's-60's boat please

    I don't know if Lone Star copied TMs blue prints or vice versa but the two did have very similar aluminum hull designs.
  17. Texasmark

    Boat submarining question

    On the wake thing, it is the following water from the lead boat's transom that is forcing the following boat's bow into the back side of the lead boat's bow wake. I have experienced it before and had enough sense to control my boat, understand what's happening and figure out how to pass such a...
  18. Texasmark

    Lower Unit?

    First wild guess would be old gas. Has a way of really making a good engine run crummy!
  19. Texasmark

    Best prop

    Before you invest in a prop that may not solve your problem, How about a couple of pictures of your boat, inside and hull and the engine to transom area including having the engine down in the position where it is when you are having the problem...picture...worth a thousand words. Back in the...
  20. Texasmark

    1986 115 tower of power cylinder wear

    "All just button it up and run it, the funny thing is if I never saw in there I would have been totally happy with a little lump in it at idle. but now it will be in the back of my mind everything I run the thing." "We" do tend to do these things to ourselves....leaving well enough alone! If it...
Top