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    ENGINE SPEED GOVERNORS

    On full size engines I am familiar with, the default position of the governor when stopped is full throttle as you surmise, Brian. I don't suppose you really mean "idle" speed just a suitable low speed for normal unloaded running. Ian.
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    Air Blast Injection Diesel - Update

    Hi Bruce, I would be very interested in any other literature you have located. As you can see, "mine's bigger than yours"! This was just loosely stood up last week in preparation for a display. Ian.
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    Single cylinder air blast injection diesel engine

    Hi Bruce, they say a little knowledge is a dangerous thing, so I should be avoided at all costs!!! My previous statement was based on the fact that I knew that the gears on the crankshaft and the vertical shaft were different diameters, (13" and 9.5" as it turns out). However, closer examination...
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    Single cylinder air blast injection diesel engine

    Don't forget Bruce, the fuel pump does not cause injection. It only supplies fuel at a pressure higher than the blast air so that when the air-blast cam operates, fuel is then blown into the cylinder. If we want to be picky, we shouldn't say "injector". Willans, for example, called it an...
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    Single cylinder air blast injection diesel engine

    You were right Bruce, this is the 3 cylinder Willans from the old Carlton & United brewery. I will try and check the gear ratios on thursday when I am next on site. I do know that the vertical shaft runs faster than the crankshaft, possibly by 3:1. If this is correct, I assume it is to do with a...
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    Single cylinder air blast injection diesel engine

    Will be following with interest, Bruce. I don't know what details you may have been able to locate, but here are the internals of a full size air-blast injector for info. Ian.
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    Some people build Models, others build CNC PLASMA machines

    Rod, 1N4001's are only rated at 50 volts. 1N4007's are the 1000 volt ones. Ian.
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    Rockerblock I.C.--Something a little different-

    Andrew, I was only guessing about your diagram. The point was that the cams are at "about" 90 degrees not 180. Ian.
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    Rockerblock I.C.--Something a little different-

    With your settings Brian, shouldn't the cams be at exactly 90 degrees, ie 180 crankshaft degrees. Even in Ghosty's picture they "eyeball" at 90 degrees. Ian.
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    Car engine (airplane?)

    Looks like a fun ride whatever it is! No apparent brakes always makes it more interesting. :) Ian.
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    Bazmak-Making a turret/capstan for the minilathe

    I hadn't noticed before but in all your photos, South Aus seems to be one day ahead of the rest of the country.:D Ian.
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    Quarter Scale Merlin V-12

    Always a pleasure to watch a real craftsman at work, no matter what he is producing. Of course, that applies to Terry as well! Ian.
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    Trying out metric

    I have always wondered at U.S. tv shows like CSI and Bones which routinely quote metric units for distance and weight. I thought they were just trying to be "scientific". Ian.
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    Universal motors...

    By the look of your diagram, none of them are important for the running of the motor. They are all only noise suppression caps to try and cover some of the natural arcing at the commutator. I can't try to guess at the correct values, but I am sure the motor would run without them if neccessary...
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    digital thermometer for amateur HT

    Well done, I hadn't thought of the protective sleeve idea, but I guess it may be how the very high temperature probes are made anyway. Ian.
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    digital thermometer for amateur HT

    I would be very surprised if the supplied probes are capable of surviving 1300 degrees. That figure is just the maximum value that the meter can indicate, think full-scale on an analog meter. Ian.
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    Oscillating I.C. Engine

    ....disappear into the mess under the lathe or where ever those little parts go when they escape. Brian, have no fear, we may not be talking but by golly we are watching. Ian.
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    Photo Resizing

    Under My Account/Control Panel/Edit Options/Thread Display Options there is a field for image display size. Mine is set to default which the accompanying note says will allow the forum to resize images for display. Works fine for me including the ones mentioned on Brian's thread. However I agree...
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    I finally got my balls back!!!

    Al has a valid point there. The default position for this type of governor is "full throttle" with the engine stopped. As the engine speeds up, the governor starts to close the throttle and, if the stars align correctly, will catch the rising engine speed with a suitable rate of closing throttle...
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    Nemett Lynx 15 cc 4 Stroke I/C Petrol Engine

    Congratulations, Gus. A great looking engine. Ian.
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