Pumice Displacer

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jgroves467
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Joined: Sat Sep 11, 2004 5:26 pm
First Name: Jerry
Last Name: Groves

Pumice Displacer

Post by jgroves467 »

Does anyone know if a pumice stone displacer improves efficiency and
does it withstand the rigors of long use?
stan.hornbaker
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First Name: William S.
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Response to Pumice Displacer

Post by stan.hornbaker »

A pumice displacer would be light, thermally nonconductive, and unaffected by temperture. Pumice is quite friable and would shed abrasive particles. Such particles would be detrimental to a low friction engine. "Foamglas" would be a possible substitute. It is doubtful that either pumice or foamglsa would be of any real benefit. A thin wall metal displacer would provide about the same benefit from a practical standpoint.
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