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    Bruce-MacBeth Gas Engine Electric Plant

    Bill, Yes....that is the company. Thanks! Jeff
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    Bruce-MacBeth Gas Engine Electric Plant

    Dave, The process isn't that difficult. Getting a good result, however, can be until you learn the how it works. I wrote an article on the process for the Gas Engine Magazine a long time ago. I looked and it is still our there at...
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    Bruce-MacBeth Gas Engine Electric Plant

    Dave, Yes, I did. Everything except the flywheels (done on a friends 12" lathe) was done on my old Logan 9" and SX-3 mill/drill, but I just got a new 11" lathe so hopefully all future stuff will be done in-house. My basement shop is small, comfortable, but messy. Sorry, no photographs! Jeff
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    Bruce-MacBeth Gas Engine Electric Plant

    Martin, Thanks. The raised letter making process is called photo, chemical, or acid etching. The background was dissolved away leaving the raised lettering and door border. Identical to the way printed circuit boards are made. There are numerous sites on the internet that explain it. Jeff
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    Bruce-MacBeth Gas Engine Electric Plant

    I appreciate the comments guys. I tend to favor slow running engine designs because they can sound soooooo nice. Glad there are some others out there that like them also. Jeff
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    Bruce-MacBeth Gas Engine Electric Plant

    This project was posted back in September in the Photo’s section, but wasn’t quite complete. And I know the video wasn’t great either. I am still no better at videography, but results are a little better this time. This is a 1/10th scale 1915 vintage Bruce-MacBeth stationary 100 hp gas engine...
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    Another Snow Build

    Dave, I did post a write-up and video of that project just after finishing it. It was in the Photo's and Video's section a back in Sept. http://www.homemodelenginemachinist.com/index.php?topic=15701.0 No detail photos were included, so I might do that soon in the completed projects section...
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    Another Snow Build

    Dave, That was my Snow,...and is a dupicate. It's also my favortie. My first visit to NEMES. I really enjoyed the show! Jeff
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    SS cylinder liners

    Hi, Has anyone had any experience, good or bad, using 303 SS for wet cylinder liners? I would be using CI rings and AL piston in a medium speed multi-cylinder engine. Bore would be 0.75", and the engine would be working under light light to medium load at about 2000 RPM constant speed. Fuel...
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    Silver soldering 12L14 Steel

    Harold, When I silver braze a large assembly I usually improvise using the following depending on the size of the assembly: Largest size - put it on my propane turkey fryer heater for preheat, and braze when up to temp (wear gloves). Medium size - put it on an old 1500 watt hot plate for preheat...
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    Silver soldering 12L14 Steel

    I have always used drill rod for crankshafts. I don't like the more corrosive nature of 12L14, but I have never had a problem like yours. I generally use a high silver content braze material that flows at about 1250F. I use a white brazing flux I get at Brownells called Ultra Flux. I don't think...
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    12L14 for valve seat cage

    I have successfully used 12L14 and phosphor bronze for valve cages. My prefernce is the harder phosphor bronze. It machines very well, the guides and seats wear well, and the cages won't corrode. Gail brought up a topic related issue that should be considered when building, BUT more often when...
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    MidEast Model Engineering Expo--Ohio--

    We had a great time at the show. Many thanks to Paul and his guys for another great show and to Laura for a great lunch on Friday. Lot's of opportunity to talk with other model builders. Always a great learning experience for me, and well worth the 8 hour drive for us. Gary's Snow ran fine...
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    Why do Diesel Engines require 2 valves?

    I know this is an old thread, but I just ran across it. Yes Chuck, a diesel can be produced with just one valve per cylinder. In fact it was produced here in the USA in the 1930's, and was known as the Monovalve diesel. Surprisingly is was an L head engine. Jeff...
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    Gasket material

    Then Teflon it will be!!! Thanks guys. Jeff
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    Gasket material

    I am in the process of regasketing an engine I made a few years ago. It has recently blown a head gasket. The material used was a neoprene-cork material from NAPA and was all I could find at the time. I was in a hurry. The model requires .015-.016"" material for proper assembly fit. The engine...
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    Bruce-MacBeth gas engine model

    Pat, Small motors are are notoriously inefficient when used as genertors whether DC or AC. They are fine for demo loading a model, but if you want to quantify the engine power output it would be difficult. The generator efficiency would be difficult for me to measure. All I can measure is the...
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    A good oil can?

    Thanks for the suggestions. I still need a better pump can. Will look for an Eagle, but the notches idea sounds like it might work for me also. Jeff
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    A good oil can?

    I have a new Asian lathe that has a bunch of those little oil holes with spring loaded balls on top. I have a pump type oil can that fits the holes perfectly, but everytime I pick it up it is wet and sitting in a puddle of oil. I need a pumper since some of the holes need a slight amount of...
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    Bruce-MacBeth gas engine model

    Thanks. The alternator stator started out as an old 18 pole ceiling fan motor. The stator winding coil connections were dug out and reconnected for the lowest possible voltage. The rotor was fabricated using rare earth magnets for excitation. The radiator fan is powered from the generator...
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