Crankshaft Rear Seal with Retainer Plate: Removal

NOTE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, may cause engine failure.

NOTE: This procedure is for removal of the crankshaft rear seal and retainer plate. If only removing the crankshaft rear seal, refer to CRANKSHAFT REAR SEAL .

With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING article.
Remove the flexplate. For additional information, refer to FLEXPLATE .
Remove the crankshaft sensor ring.

Fig 1: Identifying Crankshaft Sensor Ring
Courtesy of FORD MOTOR CO.
Disconnect the Crankshaft Position (CKP) sensor electrical connector.

Fig 2: Locating Crankshaft Position Sensor Electrical Connector
Courtesy of FORD MOTOR CO.
Remove the bolt and the CKP sensor.

Fig 3: Locating CKP Sensor And Mounting Bolt
Courtesy of FORD MOTOR CO.
Using the Crankshaft Rear Oil Seal Remover and Slide Hammer, remove and discard the rear crankshaft seal.

Fig 4: Removing Rear Crankshaft Seal Using Crankshaft Rear Oil Seal Remover And Slide Hammer
Courtesy of FORD MOTOR CO.
Remove the 2 oil pan to crankshaft rear seal retainer bolts.

Fig 5: Locating Crankshaft Rear Seal Retainer Bolts
Courtesy of FORD MOTOR CO.
Remove the 8 crankshaft rear seal retainer bolts.

Fig 6: Locating Crankshaft Rear Seal Retainer Bolts
Courtesy of FORD MOTOR CO.
Install the 2 M6 oil pan bolts (finger-tight) into the 2 threaded holes in the crankshaft rear seal retainer.
- Alternately tighten the 2 bolts one turn at a time until the crankshaft rear seal retainer-to-cylinder block seal is released.
  - Remove the crankshaft rear seal retainer.
    
    Fig 7: Locating Crankshaft Rear Seal Retainer Mounting Bolts
    Courtesy of FORD MOTOR CO.

NOTE: Only use a 3M™ Roloc® Bristle Disk (2-in white, part number 07528) to clean the crankshaft rear seal retainer plate. Do not use metal scrapers, wire brushes or any other power abrasive disk to clean the crankshaft rear seal retainer plate. These tools cause scratches and gouges that make leak paths.

Clean the crankshaft rear seal retainer plate using a 3M™ Roloc® Bristle Disk (2-in white, part number 07528) in a suitable tool turning at the recommended speed of 15, 000 rpm.
- Thoroughly wash the crankshaft rear seal retainer plate to remove any foreign material, including any abrasive particles created during the cleaning process.

NOTE: Place clean, lint-free shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages or the oil pan, may cause engine failure.

NOTE: Do not use wire brushes, power abrasive discs or 3M™ Roloc® Bristle Disk (2-in white, part number 07528) to clean the sealing surfaces. These tools cause scratches and gouges that make leak paths. They also cause contamination that will cause premature engine failure. Remove all traces of the gasket.

Clean the sealing surfaces of the cylinder block and oil pan flange in the following sequence.
1. Remove any large deposits of silicone or gasket material.
2. Apply silicone gasket remover and allow to set for several minutes.
3. Remove the silicone gasket remover. A second application of silicone gasket remover may be required if residual traces of silicone or gasket material remain.
4. Apply metal surface prep to remove any remaining traces of oil or coolant and to prepare the surfaces to bond. Do not attempt to make the metal shiny. Some staining of the metal surfaces is normal.