spacepirates
Serious Thumper
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Igni Ferroque
Posts: 515
Pittsburgh, PA
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Now, I've never had the covers off, so I can't say for sure their internal geometry, but a block of metal on top of the piston isn't going to cool nearly as well as a finned design.
Also, i'd imagine if it were necessary for cooling, it wouldn't be bolted on with rubber mounts, which would restrict thermal conductivity.
with them off, it would allow for more air to pass over the top of the cylinder and possibly around the top fin too.
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