2) Distortion of lower surface z As shown in figure, measure the cylinder head's distortion at (t) 6 directions with horizontal ruler and clearance gauge. A B C D z If the measured value is beyond the limit value, correct E F it by means of the fine grinding paper or grinding machine. z If it is beyond the max. allowable value, replace the cylinder head. Standard Limit 3) Flatness z Check the flatness of the installing surface of cylinder head's intake and exhaust manifolds with horizontal ruler and clearance gauge. 4) The hydraulic test z The hydraulic test of cylinder head is same as the cylinder block test.
DL06 Diesel Engine Disassembly and Reassembly of Major Components 71 Warpage 0.08 mm or less 0.15 mm Thickness : t (reference) 104.9 ~105.1mm 104.4mm Standard Limit 0.15 mm 0.3 mm