There was and would be. It['s a tiny affair and is easily lost during 
rebuild.
John
You wrote: 
>
>I pulled out my spare pipe, uncrimped, but with no sign of a
>ball-and-spring, nor any sign that there ever was nor would be. This 
was
>on later engines?
>
>-- 
>
>-              J e r o m e   Y u z y k | jerome(at)supernet.ab.ca         
 -
>-           BRIDGE Scientific Services | www.tgx.com/bridge            
 -
>-    Sunbeam Alpine Series II #9118636 | www.tgx.com/bridge/sunbeam    
 -
>-    I'm going to SUNI III... Are You? | www.newsource.net/suni3       
 -
>
>
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