Question about Ampico valves for you player people

[Ron Nossaman]

At 11:10 PM 4/8/99 EDT, you wrote:
>I have a customer with a Haines Bros. upright with a model A Ampico with the 
>valves that are "upside down".  He and a friend rebuilt the thing and did a 
>reasonably good job with the following exception:  to replace the pouches 
>they used zypher skin.  It is very airtight but in this configuration with 
>the upside down valves it is a little too stiff and has settled and taken a 
>set in the open position at rest.
>     Needless to say it takes very high vacuum to close the valves now.  I 
>was wondering if there is anything short of repouching that might work, such 
>as treating the pouches with neatsfoot oil and perhaps using some very weak 
>coil springs(like the ones at the bottom of Pianodisc solenoids) to push the 
>valve disks back up to a closed position?  Any input would be appreciated.  
>If you want to email me privately that's fine.
>Thanks,
>Randy Mangus, RPT
>
>


I don't know of anything that works except replacing the pouches with what
worked the first time. Sorry.

 Ron