Per service manual it is .002 – .030” (0.05 – 0.76 mm) for 120000 series side valve engines. Now there are shims that could be used when the play was excessive.
• 220624 .0625 thrust washer for .875” (22.23 mm) dia. crankshaft.
• 220708 .0625 thrust washer for 1.000” (25.4 mm) dia. crankshaft.
• 222949 .062 thrust washer for 1.181” (30.0 mm) dia. crankshaft.
• 222951 .062 thrust washer for 1.378” (35.0 mm) dia. crankshaft
