Lincoln E6TZ-6108-FB Piston

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To prepare for piston/connecting rod assembly removal, check for ridges at the upper limit of ring travel using your fingernail and, if present, use a ridge reamer to eliminate them before attempting to remove the piston/connecting rod assemblies. Ensure the tool doesn't cut into the ring travel area more than 1/32-inch. Once ridges are addressed, turn the engine upside-down with the crankshaft facing up. Before removing connecting rods, check the side clearance with a dial indicator or feeler gauges, ensuring it falls within the specified limits; excessive clearance may require new connecting rods or crankshaft repair. Mark connecting rods and caps for identification, then gradually loosen the connecting rod cap nuts or bolts and remove them by hand. Remove the connecting rod cap and bearing insert, protecting the crankshaft with hose sections if studs are present. Push the connecting rod/piston assembly out through the top of the engine using a wooden or plastic hammer handle, ensuring any resistance is double-checked for ridge removal. Repeat for remaining cylinders. After removal, reassemble connecting rod caps and bearing inserts in their respective rods, securing cap nuts finger tight, and avoid separating pistons from connecting rods.

To prepare for piston/connecting rod assembly removal, check for ridges at the upper limit of ring travel using your fingernail and, if present, use a ridge reamer to eliminate them before attempting to remove the piston/connecting rod assemblies. Ensure the tool doesn't cut into the ring travel area more than 1/32-inch. Once ridges are addressed, turn the engine upside-down with the crankshaft facing up. Before removing connecting rods, check the side clearance with a dial indicator or feeler gauges, ensuring it falls within the specified limits; excessive clearance may require new connecting rods or crankshaft repair. Mark connecting rods and caps for identification, then gradually loosen the connecting rod cap nuts or bolts and remove them by hand. Remove the connecting rod cap and bearing insert, protecting the crankshaft with hose sections if studs are present. Push the connecting rod/piston assembly out through the top of the engine using a wooden or plastic hammer handle, ensuring any resistance is double-checked for ridge removal. Repeat for remaining cylinders. After removal, reassemble connecting rod caps and bearing inserts in their respective rods, securing cap nuts finger tight, and avoid separating pistons from connecting rods.

Before installing piston/connecting rod assemblies, ensure clean cylinder walls, chamfered top edge of each cylinder, and crankshaft in place. Remove cap from end of number one connecting rod, wipe original bearing inserts' surfaces. Place upper and lower bearing inserts in connecting rod and cap, align tabs. Position piston ring gaps, lubricate piston and rings with oil. Use ring compressor to insert assembly into number one cylinder bore, tap piston into place, guide connecting rod onto crankshaft journal. Check connecting rod bearing oil clearance with Plastigage before bolting rod cap. Tighten nuts to specified torque, check Plastigage for oil clearance, scrape off traces if correct. Apply moly-base grease or assembly lube to bearing faces, slide connecting rod back into place. Repeat procedure for remaining pistons/connecting rods. Rotate crankshaft to check for binding, verify connecting rod endplay, resize rods if necessary at machine shop.

Rotate the crankshaft to check for binding - Compare the measurement of the connecting rod endplay to specifications - If necessary, resize the rods at an automotive machine shop.

Rotate the crankshaft to check for binding - Compare the measurement of the connecting rod endplay to specifications - If necessary, resize the rods at an automotive machine shop.

Use a piston ring installation tool to carefully extract the rings, avoiding any damage to the pistons.

You should gradually loosen the connecting rod cap nuts or bolts and remove them by hand.

Scrape carbon deposits from the piston tops using a hand-held wire brush or fine emery cloth, avoiding the use of a drill-mounted wire brush to prevent erosion of the soft piston material.

Consult an automotive machine shop for assistance with piston removal from connecting rods.