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  1. Texasmark

    Quicksilver Tach Problem Update

    Well, weather was bad again so yesterday I dissected the Quicksilver Tach....Merc P/N 825282.....just a basic 8k rpm tach for 2 and 4 cycle engines. The heart of the thing is a "Cherry Semiconductor" CS 289 "20ma Air Core Tach Drive Circuit". Another absolute marvel of the technical industry...
  2. Texasmark

    Happy Fr Day Tasha's Dad and all you Dads

    See my tach thread..............to keep this legal. Grin
  3. Texasmark

    Hot 4 Stroke Exhaust

    This is about props, but primarily the engine exhaust that props have to deal with so it's here. Was reading yesterday about 4 stroke exhaust being hotter than comparable 2 stroke and this is the reason for going away from rubber hubs to plastic. Is the exhaust hotter and if so, why? Both...
  4. Texasmark

    Do All 4 Strokes Make Oil.......

    Or does it depend on how you use them and the climate? Anybody remember the Homelite of the '60's? Did they "make oil too"? Thanks, Mark
  5. Texasmark

    Laddies, Comments please on "Dock Buster"

    This is a separate thread as I am addressing the engine design, not the shifter as in the Dock Buster thread........and I'm specifically looking for Laddies comments. Laddies, sir............ Having stated that you worked on 1000's of the 40 cu in 4 cyls, I guess you also had your fill of...
  6. Texasmark

    Leaking Rims with Tubeless Tires

    Anyone ever heard of or used chassis grease for sealing the bead to rim interface on a tubeless tire? I was at a tire store yesterday and the guy wirebrushed the rim then greased it up real good where the tire seats, installed the tire and washed it off. Seems like it would seal OK, my problem...
  7. Texasmark

    Prop Porting for Performance

    Don't hear much about it on here but we're always talking about having one gearbox on our rigs and it has to cover hole, mid-cruising, and top end. Don't overlook the palsey ports for down shifting. If you don't know what they are just look at the side of a prop that's ported and there will be...
  8. Texasmark

    Lights for Skiing?

    One of these commercials that are on the right (not the boat cover one that keeps blinking at you) shows a boat towing a skier and it has a bow type bracket across the top with two round looking things. Are these lights......for skiing? In Texas it is against the law to ski after dark. Mark
  9. Texasmark

    Silvertip

    Checked the plugs and pistons again yesterday. Plugs are dry and tan, real clean, and piston tops are all uniform and clean as a whistle. Looks like you nailed it on the plugs and Sea Foam is always in my gas doing it's job. I have enough time on them now to forget about it. If I was going...
  10. Texasmark

    Got Another Avatar

    Well, when they changed software, which seems to be coming along nicely, my Avatar disappeared. So I took my POS Merc and tin lizzie out and shot another. I like the way they (iboats) have their software setup where you can select your source (your computer) and download it directly from the...
  11. Texasmark

    I'm Sorry

    I finally figured out how to get one of my cell phone pics of my '02 POS 90 hp Merc and 17' alum BB on the site as my avatar with the new software. The pic was taken at 50 mph (speedometer, 48 GPS) May 1, '07 (ambient temp is higher from last winter, so speed is off from 52 mph), and after I...
  12. Texasmark

    When You're Hot You're Hot

    Today this site is really humming. It's a grand pleasure to be able to take advantage of the "High Speed Internet" that I purchased when the sites visited respond in good order. Don't know why it gets so slow at times and is like it should be at others. I check the people online and it...
  13. Texasmark

    Boy Have Things Changed

    Someone decided to send me a complimentary troll issue of Center Console Magazine. I just sat here with my jaw on the floor. I couldn't believe the boats and OB engines (number of engines) that seem to be commonplace today. Must be a lotta folks out there with a pocket full of money to be...
  14. Texasmark

    Question for you old OMC Salts

    Back in the days of the 90 hp derivative of the fat 50 V4 (I think Johnny called it a Meteor), Evinrude made a trihull I/O. You could buy it with several engines. As I recall one was a 155 hp Buick V6 4 stroke, and one had this 90 hp 4 cylinder 2 stroke powerhead. Since that was the days...
  15. Texasmark

    Merc 3 cyl running 6500 rpm's

    Felt like fooling around today so I took the 24XP Ballistic off my engine and put the 21 back on. I only ran it once after I bought it and that was a year ago. Forgot how it performed. Thinking about going to the coast and fishing the shallow brackish lagoons and don't want to ding up the...
  16. Texasmark

    He Was Headed Right for My Truck

    Double ramp. Tried to be courteous and stay on my side. Trailer was in the water. Was in the seat starting the engine. Noticed another rig coming down the ramp. Next thing you know it was headed right for the side of my truck (about a 30 degree angle from where it should have been)...
  17. Texasmark

    If your Home's your Castle, What's your boat?

    Just had a thought. Was in electrics and the guy from SC's Avatar showed a toon full of folks and he (I guess) was standing up....obviously he was having fun. So what is YOUR boat to you? I bet we get some interesting replies. Mine, over the years, have been my recreation; pretty much my...
  18. Texasmark

    Improved response time on posts

    I don't know where else to put this and it does affect OB NR discussions, and I usually visit here so here it is. I have been having an lot of delay in trying to chat on this site. Others have mentioned it also and apparently have been in contact with the site. The site (mgr) responded (to...
  19. Texasmark

    What did "setup" mean in 1958

    We are always yakin about proper engine height and trim and all that setup stuff to maximize performance. The last couple of days we have also been yakin about the "Fat 50", first American V4 engine produced by OMC back in the '50's. Also still hammering the question (to me) of torq and it's...
  20. Texasmark

    OEM Plug Recommendations

    You know, you just have to keep asking questions. Still working my clutch dog rattle problem. Figure if I can smooth out my idle, I can reduce it since I am running a big bore 3 cyl and idle (675 rpm) is rough for obvious reasons d:) . So I'm yacking away on here and Silvertip kicks in with a...
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