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Recent content by John T

Yesterday's Tractor Forums
  1. J

    Observation at 7-11 today..

    I don’t know if it’s “lower than ever” I think I saw 4.3 % today which beats the over 9% some time back. I will tell you about inflation however , when I was a kid many moons ago candy bars were a nickel but I think mounds (2 small bits) were a dime grrr. Fountain cokes were also a nickel but...
  2. J

    Water Heater Maintenance

    In addition to semi annual draining to add life to a water heater I also check the anode rod but that doesn’t need to be performed near as often. Another energy saving thing is to wrap with one of those insulation blankets. One last thing is to use a non conductive pipe fitting on the inlet snd...
  3. J

    Boat Batteries

    I think Epoch sells marine rated lithium batteries they cost much more but are lighter, will withstand deeper discharge much better than lead acid, are rated for more life cycles, but require more tailored charging. At the least in a Boat I would suggest AG M instead of wet flooded lead acid...
  4. J

    Observation at 7-11 today..

    Near four bucks is more than I’m willing to pay but for those who are willing that’s their choice. The free market and free people will decide. I’m an engineer and attorney so I will leave economics arguments up to qualified economist here. I personally would prefer any food benefit programs go...
  5. J

    Different 220volt plugs

    GENERALY SPEAKING ONLY there are times when connection to a Grounding Electrode (such as but not limited to a rod driven into earth) is required for portable gensets and others when its not (but its more complicated than only one sentence) thats my current understanding of the NEC but no...
  6. J

    Different 220volt plugs

    Good question Phil, here's the reason plus other FYI: A typical 240 Volt 3 Prong receptacle is for 240 ONLY (IE NO 120) tools, like say a motor or welder etc., and has 240 L1 to L2 plus a safety Equipment Grounding Conductor EGC. NOTE this EGC is not necessarily the same as what some might...
  7. J

    Unfortunately I had to take a break

    Thanks for sharing and yes the Good Lord is in control and has a purpose. It’s wonderful to see all the Christian believers on here and for the few who aren’t hey the rest of us are praying for you and wish you the very best. Best wishes and prayers for your recovery, God bless all here...
  8. J

    Magneto spark polarity?

    Thanks for the info. Using a compass will tell yayyyyyyyyyyyyyyyyy I remember my surveyor buddies always talki ng about True North versus Magnetic North JOhn T
  9. J

    Magneto spark polarity?

    Hey again mike I don’t know north from south magnetic polarity only that they are opposite lol. As we have sorted out on jd two cylinders snd a wico c or x mag the left cylinder fires and only 180 later the rigjt fires and the mag at crankshaft speed has to Also fire every 180. On the exhaust...
  10. J

    Magneto spark polarity?

    Mornin Bill I don’t know about the 15% figure but can tell you the difference regarding polarity. It’s easier to arc jump from a hotter tip to a cooler ground strap (reason why vacuum tubes heat the cathode) so at the wrong polarity the coil had to reach a higher voltage before it fired...
  11. J

    Magneto spark polarity?

    Hey Mike thanks for the update, I remembered JD two cylinder mags ran at cam speed grrrrrrrrrrr my bad, Glad I said NO warranty lol I think however one of the Wico Mags has a reduction gear drive so it only runs half speed of all others, but I forget that model number ?? AP maybe ?? YES Indeed...
  12. J

    Magneto spark polarity?

    I dont know any exact percentage but can tell you reverse polarity plug firing is less efficient because the coil has to ramp up to a higher voltage before the plug fires meaning more heat and energy losses Its easier to arc jump electrons FROM a hotter electrode tip TO a cooler ground strap...
  13. J

    Magneto spark polarity?

    Good fun discussion !!!!!!! The way we were taught way back when in EE school at Purdue was whats called CONVENTIONAL current flows Pos to Neg while ELECTRON current from Neg to Pos, because electrons are negative charged particles that flow away from - to + Also the holes left because an...
  14. J

    Magneto spark polarity?

    Thats because the plugs ground strap is only like 0.025 apart from the electrode tip ............ John T
  15. J

    Magneto spark polarity?

    True only if the firing is at the same time either the North or South magnetic polarity side of the coil but NOT if she set to fire at BOTH North and South end John T
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