Contents Section: Mechanical All sections

Engine - Repair (N62): Overhaul BMW X5 E53 рестайлинг

Mechanical 5 illustrations ~220 words

11 12 503 Disassembling and assembling cylinder head (N62)

Special tools required

  1. 11 9 000
  2. 11 9 001
  3. 11 9 002
  4. 11 9 005
  5. 11 9 006
  6. 11 9 007
  7. 11 9 008
  8. 11 9 009
  9. 11 9 011
  10. 11 9 015

Have special tool 11 9 000 ready for removing valve springs.

Secure cylinder head (1) on special tool 11 9 001.

Note. Secure cylinder head from above with screws contained in scope of delivery on special tool 11 9 001.

Turn special tool 11 9 001 through 180°.

Scheme 431

Scheme 431

Align special tool 11 9 008 in conjunction with special tool 11 9 007 on special tool 11 9 006 to relevant combustion chamber.

Place special tool 11 9 006 on cylinder head.

Scheme 432

Scheme 432

Scheme 433

Scheme 433

11 12 527 Remachining a valve seat-cylinder head disassembled (N62)

Special Tools Required

  1. 00 3 520
  2. 00 3 580

Machine valve seat surface with special tool 00 3 520 or with 00 3 580 in accordance with tool manufacturer's instructions.

Scheme 434

Scheme 434

Note. After machining valve-seat surface: Remachine outside and inside diameters with correction milling tool to the specified diameters until you obtain valve seat width (5).

  1. Valve-seat angle
  2. Correction angle, external diameter
  3. Correction angle, internal diameter
  4. Valve seat, external diameter
  5. Valve seat width

Scheme 435

Scheme 435