Author: Chris P
Date: 2016-01-25 06:43
Your lower 8ve vent could be blocked with water, so with just the top joint on its own, hold all the fingerplates closed with your left hand fingers and close off the end of the tenon with any right hand finger.
Hold the back 8ve key open and blow and suck air through the reed socket and that should clear any collected condensation in there. Then mop the bore and see if that's helped.
Also listen to be sure you can hear the air hissing from the lower 8ve vent when you do this - if no air is escaping as you blow or you're only getting a vacuum forming when sucking the air out, then you'll need to have the lower 8ve vent removed, inspected (both the vent insert and well) and any blockage removed by someone with the correct tools.
If you can, remove the lower 8ve key (the rocker part with the pad cup and flat spring, holding the back 8ve down while you do so) and poke a brush bristle or use one of those very fine interdental brushes (TePe http://www.tepe.com/uk/products/interdental-brushes/) that's less than 0.6mm into the vent hole to clean it.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.
Post Edited (2016-01-25 06:43)
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