In a message dated 96-04-17 03:45:57 EDT, khooper@wsp1.wspice.com (Ken Hooper) writes: > >And another thing. What are piston skirts actually for, anyway? What do >they do that a simple cylinder shape wouldn't do? Because by the time I >filed twelve grams off the sucker there warn't a whole lot of skirt left. I >haven't put that engine back together yet but if I filed off something >important I'm gonna be pissed. > > The piston skirts keep the pistons striaght in the bore as they travel in the cylinders. They support the piston a fight the side load the connecting rod palces on them. A full lenth piston would increase wieght and friction. Remember the goal is to keep recipricating mass as low as possible. Piston skirt design is a science in itself. Dennis.
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