Recent content by Sprocket

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  1. Sprocket

    Show off your HMEM stickers!

    Top of my tool box with other favorites Doug
  2. Sprocket

    25 HP Nash

    Well, I spent a lot of time in the last two weeks working on the shop, not in the shop. but I have a lot more room now and made room for a bead blast cabinet that had been in an un useable position, and a big air compressor to run it. Still need to find homes for a few things, but it's much...
  3. Sprocket

    25 HP Nash

    To continue, I used a piece of brass rod to align the two parts, and the wrist pin holes to suspend them in the vise, Milled half way through and to length, then flipped it over to finish Next time I'm brazing, I'll make a little holder for length and alignment and braze these together...
  4. Sprocket

    25 HP Nash

    Connecting rods. These are a little different from what I've made in the past, mostly because they are built up and brazed, but also because the ends are cast iron. As messy as it is, I like the way cast iron cuts. The big ends are pretty standard. I cut a piece off of a scrap of cast iron and...
  5. Sprocket

    25 HP Nash

    There is a center bearing that goes in the hole bored in the center plate of the engine. The plans show a split bearing 3/16" thick and 1.188 in diameter, screwed together with 2-56 SHCS. I decided that as long as I have the space to do it, I'd make the bearing surface longer. My plan was to...
  6. Sprocket

    Miniture spark plugs

    Steamchick; Ablate = sublimate? Or are we separated by a common language again? Doug
  7. Sprocket

    T head engine by Brian

    Jasonb, Thanks. That makes sense now. Doug
  8. Sprocket

    T head engine by Brian

    Brian, Have you got a picture of the milling cutter? Side view preferably, I'm having a little trouble visualizing this. Thanks Doug
  9. Sprocket

    25 HP Nash

    John, On the first version I made of this crankshaft, I did round the ends on the lathe. I thought it might look better more rounded, and as long as I was doing it again... first time second time It just seemed it needed to be a smaller radius than I got turning it on the lathe. Purely visual...
  10. Sprocket

    25 HP Nash

    George, I really like silver brazing. My first real silver brazing project was a mountain bike frame that I rode for several years, Fillet brazed, no lugs. It has gotten more expensive since then, but I still like working with it. Doug
  11. Sprocket

    25 HP Nash

    To continue, The crankshaft cleaned up nicely with soapy water and a wire brush. Had to make sure I cut out the right parts, then rounded the inner ends of the throws, and milled out the center of the throw. To maintain the distance in the throws, I'd made some little "T" nut pairs to...
  12. Sprocket

    25 HP Nash

    Crankshaft. This part was difficult. It would seem that the way it's made would keep it straight because everything is symmetrical. It didn't work out that way. The first one was just as the plans. It was hard to keep parts positioned for brazing, and ended up with too much bend when it was...
  13. Sprocket

    T head engine by Brian

    Saw something about a tornado in Barrie, Ontario. Was it anywhere near you?
  14. Sprocket

    25 HP Nash

    So, I got back to the point of boring the crankshaft bearing holes. I'd been thinking about it way too much, got to go ahead and start. The holes are about 1- 3/16" in diameter and go through the ends and the middle plate. I suppose if I had a very long boring bar, I could do it all from one...
  15. Sprocket

    25 HP Nash

    Back again. Before I could bore the crank shaft bearing holes, I had to join top and bottom pieces and even off the surfaces. just a bunch of drilling and tapping to get to this. There is a symbol for surface finishing on the ends that looks like a square root symbol with a second line...
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