byoungplumbing(at)gmail.c
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 Posted: Mon Oct 10, 2016 11:44 am Post subject: Kolb-List Digest: 2 Msgs - 10/09/16 |
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"""Right at the end of the video the man said something that I think is not accurate;
he said it makes no difference what the comparative level of the liquid is
in the 2 bottles, as long as it is not rising or falling.,.............."""
Boyds response. "I think the statement is ok. I can live with it"
Because both bottles are tied together they will seak the same level provided the vacuum is the same. But it may take some time to level out. ( the leveling function would be a siphoning action). If the levels are changing rapidly there would be a big difference in vacuum levels. If the levels are changing slowly that would indicate a small difference in vacuum levels... If the levels are the same or different but do not appear to be changing, that would indicate almost exactly the same vacuum levels... One to two inches of water column difference is very tiny...
After watching this video , you tube suggested another where they used 4 pressure / vacuums gages. the presenter seemed OK at a one pound difference between carbs... A one pound difference would be a 27 inch water column difference...
Setting this will provide a smoother idling engine with less backlash in the propeller reduction gears . with the levels the same, each piston will be creating the same power. (Provided all else is equal)
It is probably just as important that the carbs open at the same level at cruise power setting. As was discussed at length in other videos I watched.
I think you could chase your tail making it perfect,,,,, then tomorrow with a change in barometric pressure, or , a change in the outside air temperature, or some other variable factor,,, you could do it all over again
Kis, keep it simple and go fly!!!
Boyd Young
Master plumber retired,,, Mk lll driver, 900 plus hours, utah
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