Whippen cushion felt may have big divot from the capstan, with more friction than when new. Or capstan has sharp edges digging into the felt.
Paul McCloud
San DIego
This is a 1987 Yamaha model C-108. On A3, and so some degree, A4, the jack fails to reset, but Only when the damper pedal is down. I can play it rapidly without issue when the damper pedal is Not used. Other keys work just fine. So, 1st I put a little CLP on the jack flange - no diff. The regulation is good, there is no corrosion on the spoon, the key is not binding.
Eventually I did the following:
strengthened the jack spring
repinned the jack flanges
tried giving the key more lost motion [lowered the capstan]
tried raising the hammer rail
lubed the wippen flange
put some CLP on the buttskin [why not, at this point?]
Nothing helped. When the damper pedal is in use, Why are these two keys not getting enough energy to reset when everyone else is?
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Sheffey Gregory, RPT
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Original Message------
This is a 1987 Yamaha model C-108. On A3, and so some degree, A4, the jack fails to reset, but Only when the damper pedal is down. I can play it rapidly without issue when the damper pedal is Not used. Other keys work just fine. So, 1st I put a little CLP on the jack flange - no diff. The regulation is good, there is no corrosion on the spoon, the key is not binding.
Eventually I did the following:
strengthened the jack spring
repinned the jack flanges
tried giving the key more lost motion [lowered the capstan]
tried raising the hammer rail
lubed the wippen flange
put some CLP on the buttskin [why not, at this point?]
Nothing helped. When the damper pedal is in use, Why are these two keys not getting enough energy to reset when everyone else is?
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Sheffey Gregory, RPT
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