Jupiter Student Line trumpet mouth pipe removal and replacement.

My King Cornet project.

A Cleveland King Cornet!  At inspection noticed that the main tuning slide was stuck, several dents in the mouthpipe. 

Creased dents in bell throat had received some work but not completed.

Mouthpipe and bell bow bent in towards each other.  

Here's a close-up of that nasty bell throat crease.

Close-up of bottom main tuning slide bottom outer tube and bottom ferrule.  Looks like someone tried to heat and pull the slide without success.  Good close-up of bent bell bow as well.

Dents in the bell bow.

Bent bell bow, dents in bow and bent mouth pipe.

Bell throat crease.

This is taken during the process of straightening of the bell bow and the leadpipe.

Dent balls helped take out the bell bow dents.

My work on the bell throat crease.

Main tuning slide repaired and adjusted to good fit.  Had to unsolder the lower main tuning slide from the lower inner tube; re-solder the main tuning slide crook onto the stuck bottom inner tube.  After a process of applying penetrating oil and applying heat I was able to pull the slide from the lower main outer tube.  Cleaned all the parts and re-solder the main tuning slide together again, adjusted the fit, lubricated and inserted back into the instrument. 

Bell straightened and throat crease improved.

Here are a few tools I've made in my first weeks in the Band Instrument Repair Program at Minnesota State Southeast Technical, Red Wing, MN

A Poker used for digging out grime and gunk from valve cap bottoms, etc.

The Large Poker

Magnet end of dent ball locator.

A magnetic dent ball locator.

The dent ball locator in action.  Attractive! No? :-)

Delrin rod used in conjunction with a hammer to knock things in tight spots.

The Delrin rod

A tool used to help one install water key springs.

The Water Key Spring Installer

This tool is used to hold a tuning slide pull knob in place for silver soldering.

This tool is used to hold a tuning slide pull knob in place for silver soldering.