Jun/Jul 2008

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Rusty Hopper's Modeler's Corner

More O-ring Ramblings

Hello again everyone. Last issue, I talked about using an O-ring as a piston ring. I'd like to start off this issue by sharing with you a response I received from fellow model and scale engine fan Nick Rowland:

"Rusty, I've never tried using an O-ring to replace a normal compression ring, but I've seen it done plenty of times over the years in everything from hit-and-miss models to high-performance scaled V-8 engines. However, have you ever heard of a quad-ring? They're made of the same material as an O-ring, but are made for linear movement (like a piston) rather than radial shaft sealing. I have looked at quad-rings, and I'm sure they would work."

A quad O-ring, also refered to as an "x"-ring.

Thanks for the idea, Nick, and it will be interesting to see if we hear from anyone who has tri...

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