The use of stellite valve-seat inserts in CFR engine cylinders requires means- other than lapping to centre the valve seat with respect to the guide and to ensure proper valve seating. Experience has shown that a machine grinder, employing a grinding stone rotated on an arbor by a high-speed electric motor, is necessary. This apparatus ... (c) Examine valve-seats for incomplete or uneven seating, pits 13 aquot; Kwik-Way aquot; Valve-seat Grinder modified for CFR engines. Manufactured byanbsp;...
|Title||:||IP engine test methods for rating fuels|
|Author||:||Institute of Petroleum (Great Britain)|