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Show oo VALUES SI-IOULD FIT RESPECTIVE SEATS With a new engine, valves arc prac-: tlcally interchangeable because ncllh- er the valves nor the valve seats havj I become worn. But the longer an en-' gine lias been run the more each Wive tends to fit its own seat and no other. It is necessary, therefore, i w hen removing the valve for grinding, ) that each on bo returned to its re-1 spectivc seat, otherwise the work will 1 i not be satisfactory. This is accom-pllehed accom-pllehed by marking the valves in the following manner: After removing all the valve keys. punch one small dot mark on the head of valve number one (the one nearest near-est the radiator). Then make two marks on waive number two. and so on; depending upon tho number of 1 cylinders. There Is no need to mark j the last valve as It is easy to remem- be." thai the ulunk belongs to the seat tl the diuih. Uy marking the valves in this way ono may remove them all. I clean them, true up the stems, clean I off pitted surface and return them to( I their respective seats without danger! of making an error. Motor Life. oo |