Yamaha Metal Valve Guides

[Mr.T439]

Where can I get a set of the older all metal valve guides for a YCB-822?

Thanks?

[Dan Schultz]

Where can I get a set of the older all metal valve guides for a YCB-822?

Thanks?

The ones that are held into a recess in the piston top by a screw? If so... this style has vanished from both Yamaha and Allied stock. A option is to replace the entire piston and stem to use the new style plastic guide that is held to the top if the piston by a washer and the new stem. Worth the money to keep a horn in service.

I've never seen an instance where all of the guides have failed. They can usually be taken out, spread a bit, and be put back in.

Another option....
I have a few if them here. If all fails... send me a message.

[Dan Schultz]

We have a bunch left, too. Message me if Dan runs out.

Chris

Good to know!

[Mr.T439]

So when I had my 822-f I bought a set of guides that were a copy of the plastic versions that screwed in on top with the washer but these were all metal. They may have been a custom set. I did buy them from the music shop in Memphis but it was there only/last set. Did Yamaha ever make such a guide or do I need to get them made?

[Dan Schultz]

So when I had my 822-f I bought a set of guides that were a copy of the plastic versions that screwed in on top with the washer but these were all metal. They may have been a custom set. I did buy them from the music shop in Memphis but it was there only/last set. Did Yamaha ever make such a guide or do I need to get them made?

They probably were either custom-made or some very early prototypes. Yamaha changed to the plastic guide in 1988 at serial number 100,000. I checked the Yamaha parts list for the F tuba models and the only guide listed is the G01-141093 (Allied part number Y-G0-41092) which is the modern plastic guide with a metal insert.

EDIT: I thought I recalled seeing an all metal guide in the last few days! It's actually on a very old Allied Catalog and appears on a 2008 price list. It's Allied part number Y-G01-41093N and the retail cost on it in 2008 was $28.10. I'll just bet this is the guide you are looking for. Unfortunately... it seems to have disappeared from recent parts lists.

[Dan Schultz]

Note the 'edit' here: viewtopic.php?f=4&t=84606#p637375" target="_blank