BMW X5 Owners & Service Manuals

BMW X5: Valves With Springs

REMOVING AND INSTALLING/REPLACING ALL VALVES (N62) (CYLINDER HEAD REMOVED)

Preliminary tasks are described in DISASSEMBLING AND ASSEMBLING CYLINDER HEAD.

Remove valve springs.

Remove valve stem seals.

Remove valves from cylinder head.

Installation:

If necessary, check valve guide for wear.

If necessary, remachine valve seat.

IMPORTANT: Incorrect installation possible.

Valve springs of exhaust and inlet camshafts are different. Incorrect installation will result in engine damage.

NOTE: Valve springs for exhaust valves are approx. 4 mm longer.

  1. Valve springs of inlet valves
  2. Valve springs of exhaust valves

Valves With Springs
Fig. 487: Identifying Valve Springs Of Inlet And Exhaust Valves

IMPORTANT: Incorrect installation possible.

Incorrect installation will result in valve spring breakage.

Color marking (1) is normally on lower end of valve spring.

Only the diameter is decisive for the correct installation of the valve springs.

Install valve spring so that larger diameter points to spring plate at bottom.

Valves With Springs
Fig. 488: Identifying Color Marking Of Valve Spring

Arrangement:

  1. Valve
  2. Valve stem seal with spring plate, bottom
  3. Valve spring
  4. Top plate spring
  5. Valve tapers

Valves With Springs
Fig. 489: Identifying Valve Stem Seal With Spring Plate And Top Plate Spring

REPLACING ALL VALVE STEM SEALS (N62)

Special tools required:

Preliminary tasks are described in DISASSEMBLING AND ASSEMBLING CYLINDER HEAD.

Press special tool 11 6 370 onto valve stem seal.

Withdraw valve stem seal by turning and simultaneously unscrewing special tool 11 6 370.

Valves With Springs
Fig. 490: Identifying Special Tool (11 6 370)

Installation:

Lubricate valve stem with oil and insert valve.

Fit special tool 11 1 380.

Coat new valve stem seal (1) with oil and install.

Valves With Springs
Fig. 491: Identifying Special Tool (11 1 380)

NOTE: For use on the N62 engine, special tool 11 6 380 must be remachined in accordance with the illustration with a 6.2 mm dia. drill bit to a depth of A = approx. 45 mm.

This modification has already been taken into account for reordering.

Valves With Springs
Fig. 492: Identifying Special Tool (11 6 380)

Press on valve stem seal with special tool 11 6 380 by hand as far as it will go.

Valves With Springs
Fig. 493: Identifying Special Tool (11 6 380)

REPLACING ALL VALVE SPRINGS (N62TU)

Special tools required:

(cylinder head removed)

Preliminary tasks are described in DISASSEMBLING AND ASSEMBLING CYLINDER HEAD.

Remove bearing bracket (1) with inlet camshaft and stow in special tool 11 9 470.

Valves With Springs
Fig. 494: Identifying Special Tool (11 9 470) And (11 9 473)

Remove exhaust camshaft.

Align special tool 11 0 346 in direction of valve shaft.

Valves With Springs
Fig. 495: Identifying Special Tool (11 0 346)

Press down valve spring on spring cap, top, and remove valve keys.

Valves With Springs
Fig. 496: Removing Valve Keys

IMPORTANT: Incorrect installation possible.

Incorrect installation will result in valve spring breakage.

The color coding (1) is normally located on the lower end of the valve spring.

Only the diameter is decisive for the correct installation of the valve springs.

Install valve spring so that larger diameter points to spring plate at bottom.

Valves With Springs
Fig. 497: Identifying Color Marking Of Valve Spring

Arrangement:

  1. Valve
  2. Valve stem seal with spring plate, bottom
  3. Valve spring
  4. Top plate spring
  5. Valve tapers

Valves With Springs
Fig. 498: Identifying Valve Stem Seal With Spring Plate And Top Plate Spring

READ NEXT:

 Variable Camshaft Timing

 Checking Camshaft Timing On Left Side (N62/N62TU)

Special tools required: 11 9 190 11 9 461 11 9 462 (cylinder bank 5 to 8) Necessary preliminary tasks: Remove servomotor for left eccentric shaft. Remove left cylinder head cover. Remove all

 Checking Camshaft Timing On Right Side (N62/N62TU)

Special tools required: 11 9 190 11 9 461 11 9 462 (cylinder bank 1 to 4) Necessary preliminary tasks: Remove servomotor from right eccentric shaft. Remove right cylinder head cover. Remove

SEE MORE:

 Speed warning

Principle The speed warning can be used to set a speed limit. A warning will be issued when this speed limit is exceeded. General information The warning is repeated if the vehicle speed exceeds the set speed limit again, after it has dropped below it by 3 mph/5 km/h. Adjusting 1. "CAR". 2. "Settin

 Overview Of Spring Support Repair Elements

SPRING SUPPORT SPECIFICATION Carry out thread repair with Heli-coil thread insert. Read and comply with tool manufacturer's instructions. Fig. 85: Identifying Spring Support STAMPING VEHICLE IDENTIFICATION NUMBER Special tools required: 41 0 000 41 1 190 41 1 191 41 1 192 NOTE: If the stamp

© 2019-2024 Copyright www.bmwx5info.com