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Show Go to Machine Shop in Purchasing New Piston Just because dealers for many makes of cars, even in cities, do not carry spare pistons In stock should not cause motorists worry. Large machine shops and parts Jobbers Job-bers carry stock pistons which can be machined down until they fit perfectly. This makes It unnecessary for the dealer to carry spare pistons. Furthermore, Further-more, it is a difficult matter to make a new piston fit a worn engine unless it is machined. Obviously, it is not practical prac-tical for a dealer to carry pistons of all different sizes," where sizesvary by sixteenths of an inch. If a new piston is needed, it should be turned down until it just matches the old one. Both pistons should weigh the same. The machine shop also would fit the wrist pin and cut the grooves for the exact number of rings needed. Of course, if all new pistons are being installed because of wear, they should be oversize. |