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  1. C

    Valve cutter tools works

    I been struggling like others making good seal valve seat. Thanks to Brian Rupnow many articles, i made a valve cutter following his advise. The tool works perfectly, btw i use Brian Rupnow suggestion on 90 degree included angle for valve seat and 92 degree included angle for valve.The seat...
  2. C

    Webster Valve after and before lapping taken from pcb microscope.

    This is picture i took from pcb microscope, just for fun. I learn that smaller seat as mention by "W5CYF / TinkerJohn" on his Upshur youtube video series really makes big different, i get better compression. The valve is made from two piece , solder with silver soldering. this is a very quick...
  3. C

    Greetings from Selangor,Malaysia.

    Greetings to all, Thanks to all the great postings, it helps a lot for beginners to kick start on hobby machining. I just bought 8x16 lathe, and made a "wobbler steam engine", thanks to all the forum thread, very usefully information. Now i'm gathering info on IC engine. This is my childhood...
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