Ford 5M8Z-6108-A Piston

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No, do not separate the pistons from the connecting rods. For additional information, refer to Section 17.

Keep the back sides of the bearing inserts and the insides of the connecting rods and caps perfectly clean when assembling them. Make sure you have the correct piston/rod assembly for each cylinder. The notch or mark on the piston must face the front of the engine. Lubricate the cylinder walls with clean oil. Lubricate the bearing faces when installing the rod caps after the oil clearance has been checked.

Carefully inspect each piston for cracks around the skirt, at the pin bosses, and at the ring lands.

The connecting rod bearing oil clearance must be checked before the rod cap is permanently bolted in place.

No, don't separate the pistons from the connecting rods.

If the pistons must be removed from the connecting rods, they should be taken to an automotive machine shop to check for bend and twist, as they have the special equipment for this purpose. It is advised not to disassemble the pistons and connecting rods unless new parts are necessary.