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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 >> Machine valve seat rings - AR05.30-P-4511GZ >> Measure valve setback to cylinder head - AR05.30-P-4100-01AV

Measure valve setback to cylinder head - AR05.30-P-4100-01AV

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Test and adjustment values of cylinder head

Number Designation Engines 112,
113.940/941/
942/943/944/
945/946/948
except 112.976
Engine 112.976
BE01.30-P-1001-02D Valve setback of new valves and new valve seat rings Exhaust valve mm 8.05...8.45 8.50...8.90
Intake valve mm 7.60...8.00 7.90...8.30
Test and adjustment values of cylinder head

Number Designation Engine 113.960/961/
963/965/966/
967/968/980/
981/984/986/
992/995
Engine 113.987/
988/989/
990/991/
993
BE01.30-P-1001-02D Valve setback of new valves and new valve seat rings Exhaust valve mm 8.5...8.9 8.05...8.45
Intake valve mm 7.90...8.30 7.20...7.60
Workshop equipment

WE58.40-Z-1002-19A Depth gage

Shown on engine 606 

  1. Measure valve setback (a) with depth caliper gage.
Fig 1: Identifying Valve Setback - Shown On Engine 606
G04605844Courtesy of MERCEDES-BENZ USA