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Cutting a small slot?

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Howard Lewis09/12/2017 15:46:26
7227 forum posts
21 photos

Daft suggestion?

Turn valve head undersize.

Mill Slot

Press/ Loctite on a ring to bring O D back to original diameter.

Howard

Meunier09/12/2017 21:46:53
448 forum posts
8 photos
Posted by Vic on 09/12/2017 15:43:56:
Posted by Mike Poole on 09/12/2017 12:48:38:

I like the 'pigs nose' nickname for the peg spanner two hole solution.

Mike

Yes, they’re called spanner screws not “peg screws” cheeky although some yanks call them snake eyes for some reason.

I think because the two holes resemble the "2" side of a dice when thrown and have heard 'snake-eyes' called (on film)
DaveD

Edited By Meunier on 09/12/2017 21:48:28

SillyOldDuffer10/12/2017 19:15:51
10668 forum posts
2415 photos

Just in case anyone's interested I set to, drilled holes in the piston head and made a pin spanner to fit. Works very well.

dsc04975.jpg

Much to my amazement the engine ran first time I connected air. That's a first! Still looks a mess though; I'm having real trouble getting parts to look good as well as function properly. Looks like there's still more learning to do. Gawd knows what will happen if I try painting it.

Thanks again for all the advice. I'm going to try some of the other methods later.

Dave

Edited By SillyOldDuffer on 10/12/2017 19:16:23

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