Search results

  1. Texasmark

    New boat advice

    I am 79 and had an injury to my right shoulder years ago. Got back into fishing last year and being a bass fisherman, I preferred pistol grip stocks and short butts on my rods...butt got in the way on long but casting rods as I liked to have the rod directly in front of me, straight out. As...
  2. Texasmark

    91 mercury 115 flooded then no spark

    Well we're on different sheets of music. Will yield to the power.
  3. Texasmark

    91 mercury 115 flooded then no spark

    My mistake; Brain Pfart....since a lot of today's engines are "fuel injected" and my diesel tractors are "direct injected" meaning the injector squirts into a cupped piston top rather than in a side cavity the ignites and that ignition migrates to the main cylinder....term for that is "swirl...
  4. Texasmark

    91 mercury 115 flooded then no spark

    My information is derived from the theory or operations in the service manual. It does illustrate the 3 cyl and states the the 4 cyl models have one more CDM....didn't mention another coil but triples fire every 120* and Quads every 90* so there has to be another pickup for the extra cylinder...
  5. Texasmark

    91 mercury 115 flooded then no spark

    On the DVA working on a 6 rather than a 4, the pulses are closer together on a 6 by 33% meaning that it would be 33% easier for the DVA to measure the 6 than the 4. On peak voltage whatever it is, regardless of number of cylinders the DVA will charge up to it and hold till you disconnect the...
  6. Texasmark

    06 Caravelle 230 Seahawk WA 3 blade or 4 blade

    If you read Solas published literature on their 3 and 4 blade props, they tell you point blank that the 3 is made for bow lift needed in fast running, light hulls, and the 4 is made for lifting the transom when midrange operation is preferred. Yes the geometry of the two series of props are...
  7. Texasmark

    Planing houseboat choices

    I think it was the San Diego area but I was surfing Craigs list boats for sale by owner. 30+' toon, don't know if a tritoon or not pics were side views, had 2 ea new hot dog 300 hp Mercs on it and it was hooked up going by as the photo was snapped. Looked like a bass boat on the pad! I was...
  8. Texasmark

    91 mercury 115 flooded then no spark

    Triggers are microseconds (0.000001 second) wide, 100's of volt pulses occurring in hundreds of millisecond (0.10 second) intervals. The signal pops up and disappears for a disproportionate period of time. The DVA is a "sample and hold circuit" composed mainly of 3 components: A diode in...
  9. Texasmark

    does this look like it had power tilt and trim?

    Nice work on the repainting. Thanks for the sharing the finished product.
  10. Texasmark

    does this look like it had power tilt and trim?

  11. Texasmark

    Bass Boat Basics

    My Crestliner is mid way and works great....not too far aft causing excessive bow height for slow speeds, and not too far forward causing too much weight for faster, bow lifting requirements.
  12. Texasmark

    does this look like it had power tilt and trim?

    Yes. back in the late 50's Mercury used "Lake X" in Florida for their "brutal" engine testing. Driving their engines over sandbars, logs, concrete bridge railings and such told them that they needed something to soften the impact of the spinning propeller, once airborne due to the LU hitting...
  13. Texasmark

    Spark plugs, Volvo numbers don't match

    I have become an "Iridium" fan. I almost have ALL my internal combustion engines converted down to and including lawn mowers and such. I do the cross via NGK online manual (Page 241 as I recall is for my Merc. outboards)...
  14. Texasmark

    Bass Boat Basics

    Get the cable and then build your console to fit, or build the console and order a new cable to fit. Having a cable too long is almost as bad as too short. On the exact distance OEMs use, it's what fits their layout. The idea is to get the operator up forward of the transom to aid in getting...
  15. Texasmark

    Coil spark strength

    Bored again this AM so lets try this: The energy that is consumed in the spark (voltage x current when the spark actually jumps the gap) obviously is produced/stored in the electrical system. In a conventional breaker points system, the coil (high voltage transformer) has primary winding...
  16. Texasmark

    Coil spark strength

    Nothing else to do this AM so I will post this: My experience with sparkplugs in a pressurized environment (internal combustion engine cylinder) is that a 0.030 gap will light off around 10kV. Old ignition system with coil and points, ran around 18kV unloaded STP...outside of the engine...
  17. Texasmark

    NEED Stern LIFT Prop Suggestions

    Lookin good! Wink!
  18. Texasmark

    Where should water come out if no tell tale?

    Thank you sir for making this a valid reply. My last low hp Merc was about 1974, a 2 stroke 7 ½. Been a lot of water under the bridge since then. In talking about it, I think it came without a trim tab too....engine too small to need one. Note to Chokeneck: In a barrell; a 55 gallon drum...
  19. Texasmark

    NEED Stern LIFT Prop Suggestions

    Speed is what forces the boat out of the water and on plane and finally on the pad. The boat weighs X pounds. The water pressure against the hull has to exert essentially that number of pounds in "pounds force"....an active dynamic for you to get on the pad. If you can't get enough speed to...
  20. Texasmark

    new prop for the new to me boat

    Wrong answer!!!!!!! I was moving around my open sites just now and in crossing the prop slip calculation window, I noticed a significant error. When I did the 5600 calculation, I didn't/forgot to change the pitch to 19. Once I did that the top speed moved out to 48 so you WILL get an increase...
Top