Disassembly And Assembly Of Subassemblies: Piston: Assembly
WARNING: This page is about a different car, the 2016 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
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For assembly purposes the bump on the connecting rod will face the same way as the bump on the connecting rod cap.
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For assembly purposes the bowl on the dome of the piston should be facing toward the intake of the engine.
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On the RH bank the bump on the connecting rod and cap should face the front of the engine.
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On the LH bank the bump on the connecting rod and cap should face the rear of the engine.
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Lubricate and install the piston pin.Material: Motorcraft ® SAE 5W-30 Premium Synthetic Blend Motor Oil / XO-5W30-QSP (WSS-M2C946-A)
- 5.NOTE: The piston pin retainer gap orientation must be toward the top of the piston.
Install the piston pin retainers.
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Lubricate and install the oil control rings.- 1.
Upper oil control ring.
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Oil control expander ring.
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Lower oil control ring.Material: Motorcraft ® SAE 5W-30 Premium Synthetic Blend Motor Oil / XO-5W30-QSP (WSS-M2C946-A)
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Lubricate and install the lower compression ring.- 1.
The lettering on the ring should point up toward the top of the piston.
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The hook feature will point down toward the bottom of piston.Material: Motorcraft ® SAE 5W-30 Premium Synthetic Blend Motor Oil / XO-5W30-QSP (WSS-M2C946-A)
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Lubricate and install the upper compression ring.- 1.
The lettering on the ring should point up toward the top of the piston.Material: Motorcraft ® SAE 5W-30 Premium Synthetic Blend Motor Oil / XO-5W30-QSP (WSS-M2C946-A)
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Position the piston ring gaps.- 1.
Center line of the piston parallel to the wrist pin bore.
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Oil control expander ring gap.
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Upper compression ring gap.
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Lower oil control ring gap.
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Lower compression ring gap.
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Upper oil control ring gap.
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