propliner
ArboristSite Guru
I think the advantage of the shouldered cylinders is that they allow the cylinder wall to extend further down into the case. This provides more piston stability at BDC. Less piston skirt protruding from the bottom of the cylinder would help eliminate the tendency of the piston to rock in the bore while at the bottom of the stroke.
Another advantage is that it keeps the cylinder set in place solidly around the shoulder. The flat-bottomed jugs are held in place laterally by way of the four anchor bolts only.
Another advantage is that it keeps the cylinder set in place solidly around the shoulder. The flat-bottomed jugs are held in place laterally by way of the four anchor bolts only.
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