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  1. I

    270 Offy

    Blowby is identical to the fuel/air mix coming thru the intake manifold (reason for the PCV valve). How does this lube anything? Maybe with premix? Considerations on my BR2 build....
  2. I

    Feasibility of small 4-cycles in practical usage?

    Regarding flying flatheads: the original Continental Four, as prototyped in the Hendee Mfg. toolroom (Indian Motocycle maker) in , early 30's was a 40hp flattie! Lifetime member NAAFH, Flatheds Foourever!
  3. I

    Machining aluminum and heat

    I used to friction (inertia) weld on a turret lathe. It was a wheelchair accessory, with a ball joint. The balls were about 3/4", & the shaft 3/8".Chuck the ball, drill hole, index turret (rod in holder ), spin the chuck up & cut the power as you cram the bar into the hole, You can see the weld...
  4. I

    Making lathe from scratch and using mild steel plate? Why use cast iron?

    I recall reading about the world's largest engine lathe maybe 40 years ago. It was a steel weldment. bolted together for transport on 6 semis, They moved it to powerplants for overhauls to turn the 50 ton rotors. The design allowed placing metal exactly where needed,and it was very stiff.
  5. I

    3D Printed Patterns

    I started on r12 dos! I've been on r 2000 since,running in Linux Wine. I'm looking into 360, but I haven't found the hardware requirements on the website yet. Nice casting!
  6. I

    1/3 Scale LS1

    CNC not a turn off----I'm installing an old Matsuura HMC with 11 pallets & 42 tool pods (1 degree 4th).... Yes, for models!
  7. I

    Another Knucklehead Build

    Scavenger pump - on my old Chief, the oil tank was by the gas tank. first thing you would do after kicking it over is pop the oil cap off to make sure the scavenger pump was returning. Otherwise, it would be wet sumping & smoking like hell. Not so easy on my old Knuck, cause the oil tank is...
  8. I

    Another Knucklehead Build

    Don't forget the big ones have dry sump & scrapers!
  9. I

    Remotor or Rotary Phase Converter

    No one mentioned the fact that on (especially belt) lathes, you get a better finish with 3 phase.
  10. I

    Hello from AZ

    I just found you guys last night. Cool forum. After ten years full time here at the ranch, we finally have a net connection. No more driving 20 miles to town. I have a nice shop out here on 41 acres. I have been into machining & engines since the 60's. My goal was to build my own engine, as long...
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