John Packer 379 Valve Guide Replacement

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Projack
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John Packer 379 Valve Guide Replacement

Post by Projack »

Hey all. I was wondering if any of you knew what I could use to get the old valve guide off of my Packer so that I can refit a new one on. Love the horn but one of the guides goes out about once a year. Normally I would just take it to the local repair shop but they are closed because of COVID and don't want to drive the hour and a half to the next closest repair shop. I was wondering if rubbing alcohol or even GooGone might be good but honestly I do not know. I have never done a repair on my horn so any and all advice is welcome and appreciated!
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Art Hovey
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Re: John Packer 379 Valve Guide Replacement

Post by Art Hovey »

Post a photo of the piston, showing the valve guide clearly.
GeoffC_UK
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Re: John Packer 379 Valve Guide Replacement

Post by GeoffC_UK »

https://www.johnpacker.co.uk/prod/valve ... el-jp379cc
There is a technical contact via JP's web site.
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GC
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Re: John Packer 379 Valve Guide Replacement

Post by GC »

There was a set of those included with my JP377. It seems like you just pull the valve, unscrew the valve button, pop out the old one by prying it upward, and push a new one in its place.
JP/Sterling 377 compensating Eb; Warburton "The Grail" T.G.4, RM-9 7.8, Yamaha 66D4; for sale > 1914 Conn Monster Eb (my avatar), ca. 1905 Fillmore Bros 1/4-size Eb, Bach 42B trombone
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