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Home >> Mercedes Benz >> 2008 >> GL320 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Engine Timing - 164 Chassis) >> Testing & Repair >> Check, remove, install valve guides - AR05.30-P-3731GZ >> Inspect valve guides - AR05.30-P-3731-06VT

Inspect valve guides - AR05.30-P-3731-06VT

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TEST AND ADJUSTMENT VALUES FOR VALVE GUIDES

Number Designation Engine 112 except 112.951/976, Engines 113.940/941/942/943/944/945/946/948/960/961/962/963/964/965/966/967/968/969/971/980/981/982/984/986/987/988/990/991/992/993/995 Engine 113.989
BE05.30-P-1001-02D Outside diameter of exhaust and intake valve guide Standard series mm 12.540...12.551 12.540...12.551
Standard I series (color: blue) mm 12.560...12.571 12.560...12.571
Repair stage I (color: red) mm 12.740...12.751 12.740...12.751
Repair stage II (color: yellow) mm 13.140...13.151 13.140...13.151
BE05.30-P-1002-02D Bore diameter in cylinder head of exhaust and intake valve guide Standard series mm 12.500...12.511 12.500...12.511
Standard I series (color: blue) mm 12.520...12.531 12.520...12.531
Repair stage I (color: red) mm 12.700...12.711 12.700...12.711
Repair stage II (color: yellow) mm 13.100...13.111 13.100...13.111
BE05.30-P-1003-02D Overlap in cylinder head mm 0.029...0.051 0.029...0.051
BE05.30-P-1004-02D Length L mm 50 50
BE05.30-P-1005-02D Dimension A mm 14.3 (± 0.2) 14.3 (± 0.2)
Fig 1: Identifying Feeler Gauge (102 589 01 23 00)
G05027058Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  1. Clean bore of valve guide (1) (never use a hard object).
  2. Inspect surface of bore for scores or signs of rubbing.

    IMPORTANT If damage to the surface exists, it is necessary to replace the valve guide and to inspect the stem of the valve for uneven areas. If the stem is damaged, the valve must be replaced together with the valve guide.

    Fig 2: Identifying Valve Guide
    G05027059Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  3. If it is possible to insert the side of the feeler gage SPECIAL TOOL (3) marked with "+220" over its full length (5 mm) into the valve guide, it is then necessary to replace the valve guide.

    IMPORTANT Inspect bore of valve guide in longitudinal and transverse direction.

    Fig 3: Inspecting Bore Of Valve Guide Using Feeler Gage
    G05027060Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
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