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HOW TO SELECT PISTON AND BEARING EM-139 < DISASSEMBLY AND ASSEMBLY > C D E F G H I J K L M A EM N P O MAIN BEARING SELECTION TABLE MAIN BEARING GRADE TABLE (ALL JOURNALS) UNDERSIZE BEARING USAGE GUIDE • When the specified main bearing oil clearance is not obtained with standard size main bearings, use under- side (US) bearing. • When using undersize (US) bearing, measure the main bearing inner diameter with bearing installed, and grind main journal so that the main bearing oil clearance satisfies the standard. CAUTION: In grinding crankshaft main journal to use undersize bearings, JPBIA0264ZZ Main bearing grade table (All journals) : Refer to EM-151, "Connecting Rod Bearing" . JPBIA0216ZZ |