rtriplett@bjservices.com wrote:
>
> >Yes I have run into the gap problem. Order rings for a bore .010 >larger
> >than yours and carfully file them down to the correct (.004/in of >bore)
> >gap.
> BPNW sells rings (I forget the brand) that have no gap at all. You file
> them to size. A Dremel tool with emory wheel works great. I am very happy
> with mine.
These are most likely Deves rings. They do have a gap, but the ends of
the rings, I believe, are sectioned and lap over each other, forming a
better seal. Any other rings, with butted ends, have to have the gap
properly sized--otherwise, the ends press against each other and break
the ring as they grow from temperature increase.
Cheers.
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