Lincoln Aviator 2020-2022 Service Manual / Powertrain / Engine / Engine - 3.0L EcoBoost / Disassembly and Assembly of Subassemblies - Piston

Lincoln Aviator: Engine - 3.0L EcoBoost / Disassembly and Assembly of Subassemblies - Piston

DISASSEMBLY

NOTICE: The RH and LH pistons are similar in appearance but differ in design specifications. The pistons must be installed in the correct cylinder bank or serious damage to the engine will occur.

  1. Remove and discard the piston rings.
  1. Remove and discard the piston pin retainers.
    • Remove the piston pin.
  1. NOTE: If the piston and connecting rod are to be reinstalled, they must be assembled in the same orientation. Mark the piston orientation to the connecting rod for reassembly.

    Separate the piston from the connecting rod.
  1. Clean and inspect the piston and connecting rod.
    Refer to: Piston Inspection (303-00 Engine System - General Information, General Procedures).

ASSEMBLY

    1. For assembly purposes the bump on the connecting rod will face the same way as the bump on the connecting rod cap.
    1. For assembly purposes the bowl on the dome of the piston should be facing toward the intake of the engine.
    1. On the RH bank the bump on the connecting rod and cap should face the front of the engine.
    1. On the LH bank the bump on the connecting rod and cap should face the rear of the engine.
  1. Position the piston on the connecting rod.
    • Lubricate the piston pin with clean engine oil.
    • Install the piston pin.
  1. NOTE: The piston pin retainer gap orientation must be toward the top of the piston.

    Install the piston pin retainers.
  1. Lubricate the oil control rings.
    1. Install the oil control expander ring.
    1. Install the lower oil control ring.
    1. Install the upper oil control ring.
  1. Lubricate the lower compression ring with clean engine oil and install the ring.
    1. The lettering on the ring should point up toward the top of the piston.
    1. The hook feature will point down toward the bottom of piston.
  1. Lubricate the upper compression ring with clean engine oil and install the ring.
    1. The lettering on the ring should point up toward the top of the piston.
  1. Position the piston ring gaps.
    1. Center line of the piston parallel to the wrist pin bore.
    1. Oil control expander ring gap.
    1. Upper compression ring gap.
    1. Lower oil control ring gap.
    1. Lower compression ring gap.
    1. Upper oil control ring gap.

    Disassembly and Assembly of Subassemblies - Cylinder Head

    Special Tool(s) / General Equipment 303-1249Valve Spring CompressorTKIT-2006UF-FLMTKIT-2006UF-ROW 303-1418Compressor, Valve SpringTKIT-2008ET-FLMTKIT-2008ET-ROW 303-1567Sizer, Teflon SealTKIT-2010C-FLM 303-300 (T87C-6565-A) Set, Valve Spring CompressorTKIT-1988-FESTIVAT88C-1000-STTKIT-1988-TRACERTKIT-2009TC-F 303-350 (T89P-6565-A) Compressor, Valve SpringTKIT-1990-LMHTKIT-1989-FTKIT-1989-FMTKIT-1989-FLM 307-005 (T59L-100-B) Slide Hammer 310-205Fuel Injector Brush 310-206Remover, Fuel InjectorTKIT-2009A-FLM 310-207Installer, Fuel Injector Seal AssemblyTKIT-2009A-FLM DISASSEMBLY NOTICE: During engine repair procedures, cleanliness is extremely important...

    Assembly - Engine

    Special Tool(s) / General Equipment 205-153 (T80T-4000-W) Handle 303-1246Engine Spreader BarTKIT-2006UF-FLMTKIT-2006UF-ROW 303-1247VCT Spark Plug Tube Seal Remover and InstallerTKIT-2006UF-FLMTKIT-2006UF-ROW 303-1248Camshaft holding toolsTKIT-2006UF-FLMTKIT-2006UF-ROW 303-1250Seal Installer, Rear MainTKIT-2006UFFLM 303-1531Installer, Front Crank Seal and Damper 303-1633Remover, Roller Rocker FollowerTKIT-2014D-ROW3TKIT-2014D-FL_ROW 303-1634Lift Eyes (2)TKIT-2014D-ROW3TKIT-2014D-FL_ROW 303-1696Camshaft holding fixture 303-335 (T88T-6701-A) Installer, Front Cover Oil SealTKIT-1988-FLMTKIT-1988-F Floor Crane Mounting Stand Plastic Scraper Flat-Bladed Screwdriver Piston Ring Compressor Vise Vise Jaw Protectors Materials Name Specification Motorcraft® High Performance Engine RTV SiliconeTA-357 WSE-M4G323-A6  Motorcraft® Silicone Gasket RemoverZC-30-A -  Flange SealantCU7Z-19B508-A WSS-M2G348-A11  Motorcraft® Metal Surface Prep WipesZC-31-B -  Motorcraft® Metal Brake Parts CleanerPM-4-A, PM-4-B -  NOTICE: During engine repair procedures, cleanliness is extremely important...

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