Connecting Rods and Pistons/Connecting Rod 5. Turn crankshaft about 30˚ from bottom of oil pan and install connecting rod cap. Install and tighten nuts or cap screws evenly to specifications. CONNECTING ROD SPECIFICATIONS Engine Measurement Specifications M36383 -UN-29JAN90 B43E, B43G, B48G, Cap Nut Torque 18 ± 1 N·m P218G, P220G (159 ± 9 lb-in.) T260 Cap Screw Torque 20 ± 1 N·m (177 ± 9 lb-in.) M98,2030K,14 -19-02FEB87 CTM2 (19APR90) 30-8 16, 18, 20 & 24HP Onan Engines AllTractorManuals.com 130495 6. Remove nuts or cap screws and connecting rod cap. 7. The flattened PLASTIGAGE will be found on either the bearing surface or crankshaft journal. 8.
Use the graduation marks on the envelope to -UN-29JAN90 compare the width of the flattened PLASTIGAGE at its WIDEST point. Remove PLASTIGAGE. The number within the graduation marks indicates the bearing clearance in thousandths of an inch or in M36384 millimeters depending on which side of the envelope is used. 9. New bearing clearance is 0.051—0.084 mm (0.002—0.0033 in.). If clearance exceeds 0.13 mm (0.0053 in.), remove pistons. If clearance is correct, install connecting rod caps and tighten nuts or cap screws to specifications. M98,2030K,15 -19-09OCT85 30 8