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| Stilldrillin:
--- Quote from: Manxmodder on January 05, 2015, 07:32:04 PM ---David, just out of interest,will the ethanol produce less water vapour than the purple meths that we get from the chemist/drug store? And I wonder which of these fuels burn hotter?.....OZ. --- End quote --- OZ. Yes. But....... I find "meths", quite adequate, for test purposes/ cleaning etc. Running a burner under a steam engine boiler, will produce sooting, after a session. A small flame, to test an engine for a few minutes, will not be noticeable. I've never noticed water vapour, from a flame. My recent problems were caused by warming the sheer mass of the castings. When it comes to showtime, and several hours running. I find the denatured alcohol is much less sooty, and hotter. A pal, with more experience than me, advocates shellac thinners. Though, I've not managed to locate any, as yet. I always think. Schoolboys managed very well with what was available at the time. Mum's sewing m/c oil, and a medicine bottle of meths, filled at the chemists, (for a shilling)........ I think, it's better to develop, over time, and experience, what suits you and your engines. David D |
| Stilldrillin:
--- Quote from: ian_in_the_midlands on January 06, 2015, 01:22:56 AM ---I had read somewhere not to use meths because it produces more moisture and does not burn so hot. I had not seen the bio-ethanol before. Would this be better than Isopropanol 99.9%? Isopropanol would have other uses in addition to being a fuel (Cleaning PCBs etc). I had not thought of using stove rope. Thanks. --- End quote --- Ian. See above....... Isopropanol/ bio-ethanol....... I dunno! All I can suggest, is to buy a bottle of one of them. To establish a benchmark. Then, over time, you can try others. To decide, what suits you, and your engines........ Stove rope, is made of glass fibre. It doesn't burn away, but it is loosely woven, and unravels at it's cut end. I use a smaller diameter, with the cut ends bound with a couple of turns of copper wire. Then install it as a loop, with the ends inside the tank...... David D |
| Manxmodder:
--- Quote from: Stilldrillin on November 18, 2014, 04:16:18 AM ---This is my method. Piece of dowel. Minus a thou or so, on bore size....... Smear of fine grinding paste. Plus oil, as time goes on. Around 80rpm....... The cylinder is oscillated backwards n forwards. Reversing occasionally on the lap. Until all feels smooth with no tight spots. Works for me! :thumbup: David D --- End quote --- Hi David, I used your wooden lap and fine grinding paste technique to good effect whilst finishing a critical bore size in a bronze trunnion block for the old Alba shaper I'm rebuilding. I made it from a piece dried ash firewood and it worked remarkably well :thumbup: ......OZ. |
| fcheslop:
Poppin will run fine on meths dunno who told David to use shellac thinners. She is looking well :bow: |
| Stilldrillin:
--- Quote from: Manxmodder on January 12, 2015, 04:32:14 PM ---Hi David, I used your wooden lap and fine grinding paste technique to good effect whilst finishing a critical bore size in a bronze trunnion block for the old Alba shaper I'm rebuilding. I made it from a piece dried ash firewood and it worked remarkably well :thumbup: ......OZ. --- End quote --- Nice one, OZ! :clap: :clap: Very pleased it has helped....... :thumbup: David D |
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