Disassembly And Assembly Of Subassemblies: Piston: Assembly

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Align the piston-to-connnecting rod orientation marks made during disassembly.

NOTE: If installing a new piston, install with the arrow towards the front of the engine.

Install the piston to the connecting rod.

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Lubricate with clean engine oil and install the piston pin.
Material: Motorcraft® SAE 5W-30 F-150 Diesel Motor Oil / XO-5W30-QFA (WSS-M2C214-B1)

Courtesy of FORD MOTOR COMPANY
NOTE: The piston pin retaining clip gap orientation must be toward the top of the piston.

Install the piston pin retainers.

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NOTE: The upper compression ring has a yellow paint mark on the running surface. The lower compression ring has a white paint mark on the running surface. The piston oil control ring has a green paint mark on the running surface.

Lubricate with clean engine oil and install the piston rings.

Material: Motorcraft® SAE 5W-30 F-150 Diesel Motor Oil / XO-5W30-QFA (WSS-M2C214-B1)

Courtesy of FORD MOTOR COMPANY
NOTE: The arrow on the top of the piston indicates the front of the engine.
1. Upper compression ring gap location
2. Lower compression ring gap location
3. Piston oil control ring gap location
4. Piston oil control ring gap location

Courtesy of FORD MOTOR COMPANY