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Re: replacing cork pads

Author: Chris P
Date: 2007-12-28 21:18

8ve inserts are usually turned metal and don't usually suffer from the same defects wooden ones do (though they can be trued up easily if they are worn out), but the tonehole crowns (or bedplaces) that are most likely to be defective on older oboes are all the ones cut into the body - they can be worn out, chipped or have vessels running across them making them leak as cork pads seat onto the tops of bedplaces, and not sinking deeply into them like soft leather pads and making contact with the sides.

If your top joint is airtight when doing a suction test, then the 8ve pads (and the others) are alright, though if in doubt, change them. 8ve key pads will compress much more than most (the centre of the 8ve insert is around 2mm in diameter and has a fairly sharp circumference for the pads to seat onto), especially the 1st 8ve pad as the case lid can put pressure onto the back 8ve overlever (which keeps the lower 8ve pad closed).

Though the 2nd 8ve pad can compress enough under it's strong spring pressure for it to be held slightly open when the underlever (which closes the 1st 8ve pad) makes contact with the body beneath it, causing all sorts of trouble with response and making the lower register overblow a 12th higher.

Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.

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