them with agreater clearance than was the case with the cast ironpiston. This was due to the greater coefficient of expan-sion of aluminum as compared with cast iron. In orderto insure the best operation of an aluminum piston it isnecessary that the skirt be fitted with as close a clearanceas… … .026.024.022.020 .018 to u .016 Io Z .014 w .012 z < .010 < u .008 .006.004 CYLINDER DIAMETER INCHES of an aluminum piston skirt is not high enough to accountfor the amount of clearance which it has been necessaryto give these pistons in the past. The head temperature,on the other hand, is…
Automobiles · Aeronautics
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