GM 12636003
Bearings

In order to remove the Piston, the connecting rod and the bearing, perform the following: remove the oil pank and the Cylinder Head. In the case a ring ridge exists then turn the Crankshaft until the Piston is in the lower part of the stroke then put a cloth on top of the Piston and remove using the j 24270 the ring ridge. After that, rotate the Crankshaft to the top stroke, eliminate the cloth and debris as well as to mark the connecting rods and caps for assembly. Next, unbolt the connecting rod nuts, are curling nut and cap, discarding the bolts and nuts, and remove rod and Piston from the engine block with the j-43966-1. Depress the Piston to its top dead center, clean out the cylinder bores with a detergent and hot water or light honing then bring the Piston back to it's lowest point and swab the bore with engine oil and a clean dry cloth. For installation, engine oil should be applied on the Piston, the Piston rings, the cylinder bore, and the bearing surfaces, and then the Piston should be inserted in its original bore using the j-43966-1 gently tapping the top with a wooden hammer handle. Make sure stamped mark on the Piston faces the front of the engine, press the j 8037 against the engine block until all Piston rings get into the cylinder bore, and fit the connecting rod caps onto original rods with the previously marked numbers aligned. Install new connecting bolt and nuts, tighten up to 25 nm (18 lb ft) evenly the first time and use the j 45059 to tighten another 100 degrees on the final pass. Check the connecting rod side clearance with feeler gauge (0.070-0.370 mm, 0.0027-0.0145 in). Finally, install the Cylinder Head and the Oil Pan.

In order to remove the Piston, the connecting rod and the bearing, perform the following: remove the oil pank and the Cylinder Head. In the case a ring ridge exists then turn the Crankshaft until the Piston is in the lower part of the stroke then put a cloth on top of the Piston and remove using the j 24270 the ring ridge. After that, rotate the Crankshaft to the top stroke, eliminate the cloth and debris as well as to mark the connecting rods and caps for assembly. Next, unbolt the connecting rod nuts, are curling nut and cap, discarding the bolts and nuts, and remove rod and Piston from the engine block with the j-43966-1. Depress the Piston to its top dead center, clean out the cylinder bores with a detergent and hot water or light honing then bring the Piston back to it's lowest point and swab the bore with engine oil and a clean dry cloth. For installation, engine oil should be applied on the Piston, the Piston rings, the cylinder bore, and the bearing surfaces, and then the Piston should be inserted in its original bore using the j-43966-1 gently tapping the top with a wooden hammer handle. Make sure stamped mark on the Piston faces the front of the engine, press the j 8037 against the engine block until all Piston rings get into the cylinder bore, and fit the connecting rod caps onto original rods with the previously marked numbers aligned. Install new connecting bolt and nuts, tighten up to 25 nm (18 lb ft) evenly the first time and use the j 45059 to tighten another 100 degrees on the final pass. Check the connecting rod side clearance with feeler gauge (0.070-0.370 mm, 0.0027-0.0145 in). Finally, install the Cylinder Head and the Oil Pan.

Clean the cylinder bores with hot water and detergent or light honing, then swab with engine oil and a clean, dry cloth.