Conn Valve Guide

dwhass · 01-25-2005, 03:50 PM

My old '57 Conn 18B Coprion needs a new guide on the 2nd piston. The guide is a small rectangular nylon tab that is either screwed into or pressed onto the piston. The leading edge is deteriorated and is able to be depressed past the value guide groove's end. This causes the piston to stick.

I've gotten around the problem by padding the finger button so the piston can not be depressed all the way down.

Are there replacement parts available? What about soldering on a tab made of brass? Any info or suggestions would be appreciated.

MUSICandCHARACTER · 01-26-2005, 01:17 AM

Valve guides should not be hard to find. If you have a local repair shop, they can probably find one that fits. Allied probably makes any size necessary.

Jim

01-25-2005, 03:50 PM	#1 (permalink)
dwhass New Friend Join Date: Jan 2005 Location: Phoenix, Arizona Posts: 17	Conn Valve Guide My old '57 Conn 18B Coprion needs a new guide on the 2nd piston. The guide is a small rectangular nylon tab that is either screwed into or pressed onto the piston. The leading edge is deteriorated and is able to be depressed past the value guide groove's end. This causes the piston to stick. I've gotten around the problem by padding the finger button so the piston can not be depressed all the way down. Are there replacement parts available? What about soldering on a tab made of brass? Any info or suggestions would be appreciated.
	__________________ David Hass 1915 Blessing trumpet, #9xxx 1919 Holton alto horn, #44xxx 1957 Conn 18B Coprion trumpet, #663xxx 1966 Selmer cornet, #S35xxx 2005 Blessing B155S flugel, #B00xxx Rexcraft Bugle Giardinelli, Bach mpcs Bugles Across America member

01-26-2005, 01:17 AM	#2 (permalink)
MUSICandCHARACTER Forte User Join Date: Jan 2004 Location: Newburgh, Indiana Posts: 1,165	Valve guides should not be hard to find. If you have a local repair shop, they can probably find one that fits. Allied probably makes any size necessary. Jim
	__________________ Dr. Jim Fox Licensed Mental Health Therapist Mouthpiece chart: www.ibowtie.com/tmptmpccharts.html

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