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  1. dingbat

    67 Year Old Head Bolts

    https://www.vevor.com/magnetic-induction-heater-c_10315/1kw-magnetic-induction-heater-hand-held-induction-heater-for-bolts-removal-p_010875262199
  2. dingbat

    67 Year Old Head Bolts

    Aluminum doesn't change color when heated. The first indication that your too hot (~660 C) is when the over heated area drips to the floor
  3. dingbat

    Nobody fishing?

    Add another half dozen rods, a pair of planer boards and two gps units and you’ve almost caught up with me…. Lol Glad things worked out. How did the fish fry go?
  4. dingbat

    can you remove the top drain plug screw from a lower unit and re instal it with a new washer ?

    Yes
  5. dingbat

    Needs some volts and amps for your 24 trolling kicker ?

    Auditable noise isn’t the issue. PW supplies and controls are notorious for EMI emissions. Cross talk with “Maximizer” controls and sonar are a common problem How clean is this supply? I’m running CHIRP @ 80-160 kHz. Don’t want a trolling motor banging away at 150 kHZ
  6. dingbat

    Needs some volts and amps for your 24 trolling kicker ?

    Trolling motor spec: PWM Frequency: To avoid audible humming noises, it is recommended that PWM controllers operate around 15–25 kHz. The unit in question operates at 150KHz
  7. dingbat

    New Stuff on Vehicles likes/dislikes

    Here is the TSB for the three years prior to yours https://static.nhtsa.gov/odi/tsbs/2022/MC-10225529-0001.pdf
  8. dingbat

    Wiring a 3 wire trim/tilt pump to throttle handle switch

    Wire size is a function of load over distance. Splicing a smaller diameter wire on to a larger wire equals the sum of the drops of both wire sizes and lengths.
  9. dingbat

    New Stuff on Vehicles likes/dislikes

    Guess I’m lucky. Only idler I’ve ever gone bad was on a 2001 Chevy 5.3. @ 100k. The Toyota was OE when we sold it at 199k. The Civic, my daily driver is still OE @ 235k
  10. dingbat

    New Stuff on Vehicles likes/dislikes

    The F150 has 3 level, manual seat and steering wheel warming. The Mazda has heated and vented seats front and back along with a heated steering wheel. All three functions are three level, manually controlled.
  11. dingbat

    67 Year Old Head Bolts

    I use my hammers. It’s all the other tools I’ve collected over the years. Have a hard time passing up quality tools at a bargain whether I’ll ever use them or not. A boxed set of Starrett precision machinist squares from a guy down the road for $3. A full set of Snap on, 1/2 and 3/8” drive...
  12. dingbat

    67 Year Old Head Bolts

    Worked in the metals industry my entire life. Learned early on quality over quantity. Problem being, after all these years, I have both quality and quantity….lol
  13. dingbat

    67 Year Old Head Bolts

    Quality ball peen hammers heads are forged and hardened, even tempered some times, specially for metal working. Unlike cast steel, a forged head is highly unlikely to splinter or shatter upon impact.
  14. dingbat

    67 Year Old Head Bolts

    Length (in inches) = Length (in inches) * Δ Temperature (in °F) * ε (in / °F). Steel = 0.0000065” / °F. Aluminum = 0.0000128” / °F. Pouring boiling water (212F) on 70F aluminum would expanded the hole in the aluminum 0.0018” x hole diameter….0.375 x 0.0018 =0.00068” This assumes you have...
  15. dingbat

    Been a little cold.

    Owners manual says to flush and store the Opti in vertical upright position. Buddy has twin 275 verados on his transom. Drain and store in vertical position as well
  16. dingbat

    After 20 years of lake boating, tried something completely different

    Fish out of Ocean City, Md. and Virginia Beach, Va. on a regular basis. Going back in after dark from a day offshore (40-90 miles out) never gets old. You go from total darkness to just a shimmer of light on the horizon that slowly builds to a city of lights over time. Fished for marlin out...
  17. dingbat

    67 Year Old Head Bolts

    Penetrating oil and a 1/2” pneumatic impact gun is my go to. Turn air pressure down a bit to loosen up any crud in the threads before going full force. If that doesn’t loosen them, I use two ball peen hammers to break it loose. Place the small end of one hammer on the head of the bolt and...
  18. dingbat

    Identify the thread of this screw from my boat

    In machine world, a tolerance is assigned to the dimension based upon the presentation of the number. See below In the case of a 10-24 UNC screw, the “basic” major diameter is 0.190” however, the actual diameter can vary from 0.1890” to 0.1818” diameter. Had this been a 10-32 INF, the basic...
  19. dingbat

    Been a little cold.

    Any idea which outboards? Not having any luck finding an owner’s manual that gives instructions on winterizing the cooling system
  20. dingbat

    2002 Johnson 150 (Carb) Oiler Delete

    I have a 1997 200hp Ocean Pro (second power head) with the original "System Check" system still in place that has functioned flawlessly the past 28 years ;) Very thirsty........have absolutely no problem monitoring the oil level when I'm burning half of a 3 gallon tank of oil every outing .
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