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| Bengs, Flame Eater. "Nick"......... |
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| Stilldrillin:
Thanks Steve! :beer: Frazer. If I could bash wiv an ammer, the way you do. I'd be a clever man........ :scratch: Update? Funny you should ask that! I finally managed some shop time, this afternoon! :D Started work on the burner. Silver soldered the top, into 15mm x 40mm copper pipe. Then drilled for wick holder and filler plug. Like this....... Experimented with the smallest dia wick I have, (4mm). To determine the optimum wick height. Shortening the wick tube, 2mm at a time, until the engine doesn't want to run. Then, packing under the burner, back up to working height. Will next, make a tube of the correct length......... I found revs would improve, with a temporary "canopy"........ Think we need something more permanent, above the inlet port. A few steps in the right direction. At last! :thumbup: David D |
| Stilldrillin:
Still not finding much enthusiasm, for this refurb. Dunno why........ :scratch: Finally got the burner finished! :thumbup: Soldered in, the wick tube and filler bush. Then fluxed, ready to install base. Rather enthusiastic with the plumber's solder....... Stand upright. Heat the base, until the solder seeps through....... Tried two different types of wick medium. Pipe cleaner...... Fiine copper wires...... Neither were as good as the fibreglass stove rope I usually use. Next up. I'll have a look at the valve area. If I can find a small enough tubular spanner for the pifflin' nuts..... David D |
| Stilldrillin:
It's all held together with M2 threads, having 3mm a/f nuts. The same as the socket in an M4 caphead. :thumbup: Reduced the head diameter as far as sensible. Then drilled 2mm x 1/4" deep, to clear the longer thread. Couple of locked nuts, for a handle........ Works a treat! Not happy with the lack of "compression". No head/ cyl seal, won't help! :palm: The slot for the poppin up n down valve, seems to be a bit deep. At 10thou clearance....... Gave everything a rub on fine emery. Reducing slot depth, to give 5thou clearance....... All back together now. Awaiting the chance to give it a run...... :D David D |
| vtsteam:
Took a little head scratching to figure out what you were doing, David! :scratch: That big steel bolt was just used as a combination wrench socket and extension -- not an addition to the engine. And by turning down the diameter of the head -- you mean the head of the bolt, not the engine. Sorry, a bit dense here sometimes! :doh: Is the lack of compression due to a leak or too much head space? It does sound like tightening up the valve clearance will help. You have got me thinking about the problem of a vacuum engine valving...... :scratch: :scratch: :coffee: |
| vtsteam:
Isn't the power stroke a vacuum, and not a result of compression on these? |
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