Disassembly And Assembly Of Subassemblies: Piston: Assembly
WARNING: This page is about a different variant/trim than selected.
- 1.
- 1.
For assembly purposes the bump on the connecting rod will face the same way as the bump on the connecting rod cap.
- 1.
- 2.
- 1.
For assembly purposes the bowl on the dome of the piston should be facing toward the intake of the engine.
- 2.
On the RH bank the bump on the connecting rod and cap should face the front of the engine.
- 3.
On the LH bank the bump on the connecting rod and cap should face the rear of the engine.
- 1.
- 4.
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.
- 6.
Lubricate and install the oil control rings.- 1.
Upper oil control ring.
- 2.
Oil control expander ring.
- 3.
Lower oil control ring.Material: Motorcraft ® SAE 5W-30 Premium Synthetic Blend Motor Oil / XO-5W30-QSP (WSS-M2C946-A)
- 1.
- 7.
Lubricate and install the lower compression ring.- 1.
The lettering on the ring should point up toward the top of the piston.
- 2.
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)
- 1.
- 8.
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)
- 1.
- 9.
Position the piston ring gaps.- 1.
Center line of the piston parallel to the wrist pin bore.
- 2.
Oil control expander ring gap.
- 3.
Upper compression ring gap.
- 4.
Lower oil control ring gap.
- 5.
Lower compression ring gap.
- 6.
Upper oil control ring gap.
- 1.