Mount the engine on a suitable engine stand. Remove the pushrods and lifters. Remove the timing gears and/or timing chain assembly. Remove the oil pump drive assembly. Remove the camshaft from the engine block. Remove the oil pick-up and oil pump assembly. Remove any balance or auxiliary shafts if equipped. Remove the cylinder ridge from the top of the bore.
Remove the oil pick-up and pump assembly. If necessary remove the oil pump drive. If necessary remove any balance or auxiliary shafts. Remove the cylinder ridge from the top of any cylinder bore if required.
Turn the engine over so that the crankshaft is exposed. Use a number punch and mark each connecting rod and cap with its respective cylinder number. On V-block engines, always stamp the rods and caps on the side closest to the exterior of the block for proper installation. The cylinder closest to the front of the engine is always number 1. However, depending on the engine placement, the front of the engine could either be the flywheel or damper/pulley end. Generally the front of the engine faces the front of the vehicle. Use a number punch or scribe and also mark the main bearing caps from front to rear with the front most cap being number 1.
| Place rubber hose over the connecting rod studs to protect the crankshaft and cylinder bores from damage
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CAUTION
The sharp threads of the rod bolts/studs can score the crankshaft journal. Install rubber hose sections or plastic caps over the rod bolts when pushing the piston and connecting rod assembly out of the engine.
| Carefully tap the piston out of the bore using a wooden hammer handle or piston knocker
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Reposition the engine block, so that the number one cylinder bore (head surface) is facing up. Rotate the crankshaft until the number one piston is at the bottom of its travel. This will allow the maximum access to its connecting rod. Remove the connecting rod fasteners and cap. Place two lengths of rubber hose over the rod bolts/studs to protect the crankshaft from damage. Using a wooden hammer handle (or piston hammer), push the connecting rod up about 1 in. (25mm) from the crankshaft and remove the upper bearing insert. Continue pushing or tapping the connecting rod up until the piston rings are out of the cylinder bore. Remove the piston and rod by hand, put the upper half of the bearing insert back into the rod, install the cap with its bearing insert installed, and hand-tighten the cap fasteners. On V-style engines, remove all of the pistons from one bank, then reposition the engine with the other cylinder bank head surface up, and remove that bank's piston assemblies.
Loosen the main bearing caps evenly until the bolts can be turned by hand. Remove the bolts and caps. Remove the crankshaft from the engine block. Clean all the components.
NOTE: You must remove cylinder ridges before removing the piston and connecting rod assemblies.
