Cylinder Head Oil Seals, Replacing
Oil seal for camshaft drive (left and right cylinder heads)
- Rotate engine to Top Dead Center (TDC).
- Remove toothed belt. Refer to Toothed belt, removing and installing.
- Remove rear toothed belt guard.
- Remove seal using 3240 seal extractor.
- Clean contact surface and sealing surface.
Note: Do not apply oil to sealing lip or outer circumference of seal.
- Install 3241/2 pull sleeve from 3241/1 press sleeve onto camshaft.
- Press seal flush into cylinder head using 3241/1 press sleeve, and 3241/3 bolt.
Oil seal on CMP sensor (left and right cylinder head)
- Unbolt CMP sensor.
Tightening torque: 10 Nm (7 ft. lbs.)
- Unbolt shutter wheel for CMP sensor and carefully pry out using screwdriver.
Tightening torque: 20 Nm (15 ft. lbs.)
- Screw in bolt from 2085/1 adapter.
- Remove seal using 2085 seal puller and bolt from 2085/1.
- Clean contact surface and sealing surface.
Do not lubricate sealing lip or outer edge of seal before pressing in.
- Install pull sleeve from 3241 seal installer onto camshaft.
- Press seal flush using 3241/1 press sleeve and 3241/3 bolt.
Rear sealing flange (left cylinder head)
The sealing flange and rear oil seal on the left cylinder head must be replaced together as follows:
- Unbolt engine coolant expansion tank from bracket.
- Remove crankshaft ventilation line from cylinder head cover.
- Unbolt CMP sensor.
Tightening torque: 10 Nm (7 ft. lbs.)
- Unbolt shutter wheel for CMP sensor G40 and carefully pry out using screwdriver.
- Remove cylinder head cover.
- Remove double bearing cap (arrows).
- Remove seal and sealing flange.
- Clean running and sealing surfaces as well as contact surface of double bearing cap.
- Apply thin coat of sealant 454 300 A2 to hatched areas on double bearing cap, install and tighten to 10 Nm (7 ft. lbs.).
- Install pull sleeve from 3241 seal installer onto camshaft.
- Press seal flush using 3241/1 press sleeve and 3241/3 bolt.
- Carefully drive in sealing flange to stop using 3202 retractor and plastic hammer.