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Join Date: Aug 2015
Location: Pacific Northwest
Posts: 2,387
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Interesting YouTube Video of a miniature Harley Engine
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06-04-2022, 10:06 AM
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Join Date: Apr 2001
Location: Linn County, Oregon
Posts: 48,533
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pretty damn cool. too bad about the crank damage.
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"Now, to put a water-cooled engine in the rear and to have a radiator in the front, that's not very intelligent." -Ferry Porsche (PANO, Oct. '73) (I, Paul D. have loved this quote since 1973. It will remain as long as I post here.) |
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06-04-2022, 10:24 AM
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I think the crank was damaged before he revved it up.
Check out how much the flywheel wobbles in the very first part of the video.
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Scott '78 SC mit Sportomatic - Sold |
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06-04-2022, 10:30 AM
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Join Date: Aug 2015
Location: Pacific Northwest
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I noticed the play in the flywheel as well, when he first fired it up.
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06-04-2022, 10:43 AM
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Join Date: May 2004
Location: Lake Cle Elum - Eastern WA.
Posts: 8,417
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Question about oil: No oil tank, no oil lines, no oil visible when running with valve covers off?
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Bob S. 73.5 911T 1969 911T Coo' pay (one owner) 1960 Mercedes 190SL 1962 XKE Roadster (sold) - 13 motorcycles |
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06-05-2022, 06:34 AM
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Join Date: Aug 2015
Location: Pacific Northwest
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Early in the video he is mixing oil with the fuel like a two stroke.
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06-05-2022, 08:01 AM
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Join Date: Mar 2004
Location: Higgs Field
Posts: 22,623
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I have a number of four cycle engines for radio controlled model aircraft. They run on the same glow fuel (about 75% methanol, 10% nitro methane, 15% castor oil or some modern synthetic), and utilize a glow plug, just like the two strokes. They do not have oil sumps, tanks, or pumps. Lubrication is through blow-by.
Not knowing what mix he ran this on with either the gasoline or the glow fuel, I'm going to guess he didn't have enough of, or the right kind of oil. Or both. It should actually run cooler and last longer on the glow fuel than it would on gasoline, so I think he is wrong about the damage occurring due to the glow fuel.
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Jeff '72 911T 3.0 MFI '93 Ducati 900 Super Sport "God invented whiskey so the Irish wouldn't rule the world" |
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06-05-2022, 08:38 AM
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My former car
